/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loop-simple/nested_5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-03 00:31:04,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-03 00:31:04,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-03 00:31:04,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-03 00:31:04,377 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-05-03 00:31:04,393 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-03 00:31:04,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-03 00:31:04,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-03 00:31:04,397 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-03 00:31:04,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-03 00:31:04,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-03 00:31:04,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-03 00:31:04,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-03 00:31:04,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-03 00:31:04,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-03 00:31:04,398 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-03 00:31:04,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-03 00:31:04,398 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-03 00:31:04,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-03 00:31:04,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-03 00:31:04,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-03 00:31:04,399 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-03 00:31:04,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-03 00:31:04,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-03 00:31:04,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-03 00:31:04,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-03 00:31:04,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-03 00:31:04,400 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-03 00:31:04,400 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-03 00:31:04,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-03 00:31:04,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-03 00:31:04,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-03 00:31:04,708 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-03 00:31:04,708 INFO L275 PluginConnector]: CDTParser initialized [2021-05-03 00:31:04,709 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-simple/nested_5.c [2021-05-03 00:31:04,766 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0418951b2/915686dcee734a2e86d25449ab4978c6/FLAG9d04cf0d3 [2021-05-03 00:31:05,125 INFO L306 CDTParser]: Found 1 translation units. [2021-05-03 00:31:05,125 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-simple/nested_5.c [2021-05-03 00:31:05,129 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0418951b2/915686dcee734a2e86d25449ab4978c6/FLAG9d04cf0d3 [2021-05-03 00:31:05,145 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0418951b2/915686dcee734a2e86d25449ab4978c6 [2021-05-03 00:31:05,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-03 00:31:05,149 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-03 00:31:05,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-03 00:31:05,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-03 00:31:05,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-03 00:31:05,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 12:31:05" (1/1) ... [2021-05-03 00:31:05,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@463602b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:31:05, skipping insertion in model container [2021-05-03 00:31:05,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 12:31:05" (1/1) ... [2021-05-03 00:31:05,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-03 00:31:05,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-03 00:31:05,282 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-simple/nested_5.c[899,912] [2021-05-03 00:31:05,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-03 00:31:05,291 INFO L203 MainTranslator]: Completed pre-run [2021-05-03 00:31:05,305 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-simple/nested_5.c[899,912] [2021-05-03 00:31:05,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-03 00:31:05,314 INFO L208 MainTranslator]: Completed translation [2021-05-03 00:31:05,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:31:05 WrapperNode [2021-05-03 00:31:05,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-03 00:31:05,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-03 00:31:05,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-03 00:31:05,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-03 00:31:05,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:31:05" (1/1) ... [2021-05-03 00:31:05,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:31:05" (1/1) ... [2021-05-03 00:31:05,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:31:05" (1/1) ... [2021-05-03 00:31:05,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:31:05" (1/1) ... [2021-05-03 00:31:05,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:31:05" (1/1) ... [2021-05-03 00:31:05,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:31:05" (1/1) ... [2021-05-03 00:31:05,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:31:05" (1/1) ... [2021-05-03 00:31:05,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-03 00:31:05,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-03 00:31:05,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-03 00:31:05,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-03 00:31:05,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:31:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-03 00:31:05,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-03 00:31:05,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-03 00:31:05,533 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-03 00:31:05,533 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-03 00:31:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-03 00:31:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-03 00:31:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-03 00:31:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-03 00:31:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-03 00:31:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-03 00:31:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-03 00:31:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-03 00:31:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-03 00:31:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-03 00:31:05,753 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-03 00:31:05,753 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-05-03 00:31:05,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 12:31:05 BoogieIcfgContainer [2021-05-03 00:31:05,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-03 00:31:05,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-03 00:31:05,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-03 00:31:05,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-03 00:31:05,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.05 12:31:05" (1/3) ... [2021-05-03 00:31:05,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af00ffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 12:31:05, skipping insertion in model container [2021-05-03 00:31:05,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:31:05" (2/3) ... [2021-05-03 00:31:05,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af00ffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 12:31:05, skipping insertion in model container [2021-05-03 00:31:05,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 12:31:05" (3/3) ... [2021-05-03 00:31:05,759 INFO L111 eAbstractionObserver]: Analyzing ICFG nested_5.c [2021-05-03 00:31:05,762 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-03 00:31:05,765 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-03 00:31:05,777 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-03 00:31:05,788 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-03 00:31:05,788 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-03 00:31:05,789 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-03 00:31:05,789 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-03 00:31:05,789 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-03 00:31:05,789 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-03 00:31:05,789 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-03 00:31:05,789 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-03 00:31:05,797 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-03 00:31:05,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-05-03 00:31:05,801 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:05,801 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:05,801 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:05,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:05,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1327885715, now seen corresponding path program 1 times [2021-05-03 00:31:05,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:05,809 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2092465409] [2021-05-03 00:31:05,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:05,848 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-03 00:31:05,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:05,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:05,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:05,953 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:05,953 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2092465409] [2021-05-03 00:31:05,954 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2092465409] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:05,954 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:05,954 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-03 00:31:05,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664484773] [2021-05-03 00:31:05,957 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-03 00:31:05,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:05,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-03 00:31:05,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-03 00:31:05,967 INFO L87 Difference]: Start difference. First operand has 24 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:05,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:05,998 INFO L93 Difference]: Finished difference Result 42 states and 62 transitions. [2021-05-03 00:31:05,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 00:31:05,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2021-05-03 00:31:05,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:06,004 INFO L225 Difference]: With dead ends: 42 [2021-05-03 00:31:06,004 INFO L226 Difference]: Without dead ends: 19 [2021-05-03 00:31:06,005 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-03 00:31:06,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-05-03 00:31:06,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-05-03 00:31:06,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:06,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-05-03 00:31:06,029 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 9 [2021-05-03 00:31:06,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:06,030 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-05-03 00:31:06,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:06,030 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2021-05-03 00:31:06,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-05-03 00:31:06,030 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:06,030 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:06,031 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-03 00:31:06,031 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:06,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:06,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1327937609, now seen corresponding path program 1 times [2021-05-03 00:31:06,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:06,032 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825113] [2021-05-03 00:31:06,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:06,034 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-03 00:31:06,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:06,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:06,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:06,103 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:06,103 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1825113] [2021-05-03 00:31:06,103 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1825113] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:06,103 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:06,103 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-03 00:31:06,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5159716] [2021-05-03 00:31:06,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-03 00:31:06,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:06,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-03 00:31:06,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-03 00:31:06,105 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:06,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:06,178 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2021-05-03 00:31:06,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 00:31:06,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2021-05-03 00:31:06,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:06,179 INFO L225 Difference]: With dead ends: 32 [2021-05-03 00:31:06,179 INFO L226 Difference]: Without dead ends: 29 [2021-05-03 00:31:06,181 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 56.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-03 00:31:06,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-05-03 00:31:06,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 20. [2021-05-03 00:31:06,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:06,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2021-05-03 00:31:06,188 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 9 [2021-05-03 00:31:06,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:06,188 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2021-05-03 00:31:06,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:06,188 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2021-05-03 00:31:06,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-05-03 00:31:06,188 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:06,188 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:06,189 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-03 00:31:06,189 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:06,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:06,189 INFO L82 PathProgramCache]: Analyzing trace with hash 365342218, now seen corresponding path program 1 times [2021-05-03 00:31:06,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:06,190 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333202754] [2021-05-03 00:31:06,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:06,201 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:06,207 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:06,225 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-03 00:31:06,234 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:06,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:06,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:06,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:06,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:06,311 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:06,311 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333202754] [2021-05-03 00:31:06,311 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1333202754] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:06,311 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:06,311 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-03 00:31:06,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160638698] [2021-05-03 00:31:06,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-03 00:31:06,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:06,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-03 00:31:06,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-05-03 00:31:06,313 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:06,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:06,438 INFO L93 Difference]: Finished difference Result 50 states and 66 transitions. [2021-05-03 00:31:06,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 00:31:06,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-05-03 00:31:06,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:06,439 INFO L225 Difference]: With dead ends: 50 [2021-05-03 00:31:06,439 INFO L226 Difference]: Without dead ends: 37 [2021-05-03 00:31:06,440 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 87.3ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-05-03 00:31:06,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-05-03 00:31:06,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 21. [2021-05-03 00:31:06,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:06,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2021-05-03 00:31:06,446 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 12 [2021-05-03 00:31:06,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:06,446 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-05-03 00:31:06,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:06,446 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2021-05-03 00:31:06,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-05-03 00:31:06,447 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:06,447 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:06,447 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-03 00:31:06,447 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:06,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:06,447 INFO L82 PathProgramCache]: Analyzing trace with hash -903990269, now seen corresponding path program 1 times [2021-05-03 00:31:06,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:06,448 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79063140] [2021-05-03 00:31:06,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:06,454 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:06,456 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:06,465 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-03 00:31:06,496 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:06,498 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:06,526 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-05-03 00:31:06,538 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:06,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:06,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:06,645 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:06,645 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [79063140] [2021-05-03 00:31:06,645 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [79063140] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:06,645 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:06,646 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-03 00:31:06,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672111802] [2021-05-03 00:31:06,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-03 00:31:06,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:06,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-03 00:31:06,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-05-03 00:31:06,648 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:06,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:06,810 INFO L93 Difference]: Finished difference Result 56 states and 74 transitions. [2021-05-03 00:31:06,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 00:31:06,810 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-05-03 00:31:06,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:06,812 INFO L225 Difference]: With dead ends: 56 [2021-05-03 00:31:06,812 INFO L226 Difference]: Without dead ends: 43 [2021-05-03 00:31:06,813 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 113.6ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-05-03 00:31:06,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-05-03 00:31:06,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 22. [2021-05-03 00:31:06,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:06,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2021-05-03 00:31:06,833 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 15 [2021-05-03 00:31:06,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:06,833 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2021-05-03 00:31:06,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:06,833 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2021-05-03 00:31:06,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-05-03 00:31:06,834 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:06,834 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:06,834 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-03 00:31:06,834 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:06,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:06,835 INFO L82 PathProgramCache]: Analyzing trace with hash 761147182, now seen corresponding path program 1 times [2021-05-03 00:31:06,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:06,835 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1008796518] [2021-05-03 00:31:06,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:06,846 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:06,848 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:06,856 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-03 00:31:06,865 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:06,866 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:06,878 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-05-03 00:31:06,890 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:06,891 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:06,901 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-03 00:31:06,911 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:06,913 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:06,930 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-03 00:31:06,942 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:07,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:07,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:07,063 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:07,064 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1008796518] [2021-05-03 00:31:07,064 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1008796518] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:07,064 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:07,064 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-03 00:31:07,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691881448] [2021-05-03 00:31:07,065 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-03 00:31:07,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:07,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-03 00:31:07,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-05-03 00:31:07,065 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:07,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:07,284 INFO L93 Difference]: Finished difference Result 60 states and 79 transitions. [2021-05-03 00:31:07,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 00:31:07,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2021-05-03 00:31:07,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:07,287 INFO L225 Difference]: With dead ends: 60 [2021-05-03 00:31:07,287 INFO L226 Difference]: Without dead ends: 47 [2021-05-03 00:31:07,288 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 142.8ms TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2021-05-03 00:31:07,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-05-03 00:31:07,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 23. [2021-05-03 00:31:07,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:07,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-05-03 00:31:07,295 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 18 [2021-05-03 00:31:07,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:07,297 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-05-03 00:31:07,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:07,297 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-05-03 00:31:07,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-05-03 00:31:07,302 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:07,302 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:07,302 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-03 00:31:07,303 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:07,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:07,303 INFO L82 PathProgramCache]: Analyzing trace with hash 317096575, now seen corresponding path program 1 times [2021-05-03 00:31:07,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:07,304 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50087086] [2021-05-03 00:31:07,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:07,320 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:07,321 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:07,330 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-03 00:31:07,336 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:07,337 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:07,344 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-03 00:31:07,349 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:07,350 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:07,370 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-03 00:31:07,391 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:07,392 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:07,398 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-03 00:31:07,409 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:07,410 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:07,436 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-05-03 00:31:07,452 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:07,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:07,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:07,538 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:07,538 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50087086] [2021-05-03 00:31:07,538 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [50087086] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:07,538 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:07,538 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-03 00:31:07,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193129216] [2021-05-03 00:31:07,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-03 00:31:07,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:07,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-03 00:31:07,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-05-03 00:31:07,539 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:07,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:07,752 INFO L93 Difference]: Finished difference Result 62 states and 81 transitions. [2021-05-03 00:31:07,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 00:31:07,752 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2021-05-03 00:31:07,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:07,753 INFO L225 Difference]: With dead ends: 62 [2021-05-03 00:31:07,753 INFO L226 Difference]: Without dead ends: 49 [2021-05-03 00:31:07,753 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 149.3ms TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-05-03 00:31:07,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-05-03 00:31:07,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 24. [2021-05-03 00:31:07,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:07,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2021-05-03 00:31:07,759 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 21 [2021-05-03 00:31:07,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:07,759 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-05-03 00:31:07,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:07,759 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-05-03 00:31:07,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-05-03 00:31:07,760 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:07,760 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:07,760 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-03 00:31:07,760 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:07,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:07,761 INFO L82 PathProgramCache]: Analyzing trace with hash 720998685, now seen corresponding path program 1 times [2021-05-03 00:31:07,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:07,761 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [544789392] [2021-05-03 00:31:07,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:07,782 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_32 6) InVars {main_~e~0=v_main_~e~0_32} OutVars{main_~e~0=v_main_~e~0_32} AuxVars[] AssignedVars[] [2021-05-03 00:31:07,785 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:07,793 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:07,803 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:07,810 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:07,822 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_32 6) InVars {main_~e~0=v_main_~e~0_32} OutVars{main_~e~0=v_main_~e~0_32} AuxVars[] AssignedVars[] [2021-05-03 00:31:07,824 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:07,832 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:07,837 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:07,844 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:07,856 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_32 6) InVars {main_~e~0=v_main_~e~0_32} OutVars{main_~e~0=v_main_~e~0_32} AuxVars[] AssignedVars[] [2021-05-03 00:31:07,859 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:07,860 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:07,865 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:07,878 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:07,891 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_32 6) InVars {main_~e~0=v_main_~e~0_32} OutVars{main_~e~0=v_main_~e~0_32} AuxVars[] AssignedVars[] [2021-05-03 00:31:07,893 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:07,894 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:07,899 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:07,912 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:07,925 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:07,926 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:07,954 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:07,968 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:08,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:08,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:08,071 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:08,072 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [544789392] [2021-05-03 00:31:08,072 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [544789392] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:08,072 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:08,072 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-05-03 00:31:08,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640989450] [2021-05-03 00:31:08,073 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-03 00:31:08,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:08,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-03 00:31:08,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-05-03 00:31:08,076 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:08,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:08,386 INFO L93 Difference]: Finished difference Result 64 states and 83 transitions. [2021-05-03 00:31:08,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-03 00:31:08,387 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-05-03 00:31:08,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:08,387 INFO L225 Difference]: With dead ends: 64 [2021-05-03 00:31:08,387 INFO L226 Difference]: Without dead ends: 51 [2021-05-03 00:31:08,388 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 208.0ms TimeCoverageRelationStatistics Valid=81, Invalid=129, Unknown=0, NotChecked=0, Total=210 [2021-05-03 00:31:08,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-05-03 00:31:08,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 26. [2021-05-03 00:31:08,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:08,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2021-05-03 00:31:08,395 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 23 [2021-05-03 00:31:08,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:08,396 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2021-05-03 00:31:08,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:08,396 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2021-05-03 00:31:08,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-05-03 00:31:08,396 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:08,396 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:08,396 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-03 00:31:08,397 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:08,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:08,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1971097541, now seen corresponding path program 2 times [2021-05-03 00:31:08,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:08,397 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794913606] [2021-05-03 00:31:08,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:08,445 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_57 5) InVars {main_~e~0=v_main_~e~0_57} OutVars{main_~e~0=v_main_~e~0_57} AuxVars[] AssignedVars[] [2021-05-03 00:31:08,448 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:08,469 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:08,474 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:08,482 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:08,499 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_57 5) InVars {main_~e~0=v_main_~e~0_57} OutVars{main_~e~0=v_main_~e~0_57} AuxVars[] AssignedVars[] [2021-05-03 00:31:08,503 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:08,504 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:08,521 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:08,537 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:08,549 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_57 5) InVars {main_~e~0=v_main_~e~0_57} OutVars{main_~e~0=v_main_~e~0_57} AuxVars[] AssignedVars[] [2021-05-03 00:31:08,551 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:08,552 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:08,569 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:08,585 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:08,596 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:08,599 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:08,616 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:08,643 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_57 5) InVars {main_~e~0=v_main_~e~0_57} OutVars{main_~e~0=v_main_~e~0_57} AuxVars[] AssignedVars[] [2021-05-03 00:31:08,645 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:08,646 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:08,651 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:08,675 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:08,688 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:08,689 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:08,718 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:08,732 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:08,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:08,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:08,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:08,835 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:08,835 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794913606] [2021-05-03 00:31:08,835 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [794913606] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:08,835 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:08,836 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-03 00:31:08,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181072289] [2021-05-03 00:31:08,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-03 00:31:08,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:08,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-03 00:31:08,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-05-03 00:31:08,837 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:09,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:09,106 INFO L93 Difference]: Finished difference Result 66 states and 85 transitions. [2021-05-03 00:31:09,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 00:31:09,106 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-05-03 00:31:09,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:09,107 INFO L225 Difference]: With dead ends: 66 [2021-05-03 00:31:09,107 INFO L226 Difference]: Without dead ends: 53 [2021-05-03 00:31:09,107 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 214.4ms TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2021-05-03 00:31:09,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-05-03 00:31:09,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 28. [2021-05-03 00:31:09,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:09,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2021-05-03 00:31:09,113 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 25 [2021-05-03 00:31:09,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:09,113 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2021-05-03 00:31:09,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:09,114 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2021-05-03 00:31:09,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-05-03 00:31:09,114 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:09,114 INFO L523 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:09,114 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-03 00:31:09,114 INFO L428 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:09,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:09,115 INFO L82 PathProgramCache]: Analyzing trace with hash 789708761, now seen corresponding path program 3 times [2021-05-03 00:31:09,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:09,115 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [166252093] [2021-05-03 00:31:09,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:09,143 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_90 5) InVars {main_~e~0=v_main_~e~0_90} OutVars{main_~e~0=v_main_~e~0_90} AuxVars[] AssignedVars[] [2021-05-03 00:31:09,146 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:09,153 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:09,158 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:09,165 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:09,176 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_90 5) InVars {main_~e~0=v_main_~e~0_90} OutVars{main_~e~0=v_main_~e~0_90} AuxVars[] AssignedVars[] [2021-05-03 00:31:09,177 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:09,186 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:09,194 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:09,200 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:09,211 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_90 5) InVars {main_~e~0=v_main_~e~0_90} OutVars{main_~e~0=v_main_~e~0_90} AuxVars[] AssignedVars[] [2021-05-03 00:31:09,212 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:09,219 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:09,223 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:09,229 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:09,238 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:09,245 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:09,264 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:09,277 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_90 5) InVars {main_~e~0=v_main_~e~0_90} OutVars{main_~e~0=v_main_~e~0_90} AuxVars[] AssignedVars[] [2021-05-03 00:31:09,279 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:09,286 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:09,292 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:09,299 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:09,310 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:09,311 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:09,334 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:09,347 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:09,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:09,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:09,462 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:09,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [166252093] [2021-05-03 00:31:09,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [166252093] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:09,463 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:09,463 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-05-03 00:31:09,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428622591] [2021-05-03 00:31:09,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-03 00:31:09,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:09,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-03 00:31:09,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-05-03 00:31:09,464 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:09,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:09,761 INFO L93 Difference]: Finished difference Result 68 states and 87 transitions. [2021-05-03 00:31:09,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-03 00:31:09,762 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-05-03 00:31:09,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:09,762 INFO L225 Difference]: With dead ends: 68 [2021-05-03 00:31:09,762 INFO L226 Difference]: Without dead ends: 55 [2021-05-03 00:31:09,763 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 264.9ms TimeCoverageRelationStatistics Valid=117, Invalid=225, Unknown=0, NotChecked=0, Total=342 [2021-05-03 00:31:09,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-05-03 00:31:09,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 30. [2021-05-03 00:31:09,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:09,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2021-05-03 00:31:09,778 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 27 [2021-05-03 00:31:09,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:09,779 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2021-05-03 00:31:09,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:09,780 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2021-05-03 00:31:09,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-05-03 00:31:09,781 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:09,781 INFO L523 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:09,781 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-05-03 00:31:09,781 INFO L428 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:09,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:09,782 INFO L82 PathProgramCache]: Analyzing trace with hash -365223945, now seen corresponding path program 4 times [2021-05-03 00:31:09,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:09,782 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1465811070] [2021-05-03 00:31:09,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:09,809 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_128 5) InVars {main_~e~0=v_main_~e~0_128} OutVars{main_~e~0=v_main_~e~0_128} AuxVars[] AssignedVars[] [2021-05-03 00:31:09,810 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:09,817 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:09,821 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:09,826 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:09,838 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_128 5) InVars {main_~e~0=v_main_~e~0_128} OutVars{main_~e~0=v_main_~e~0_128} AuxVars[] AssignedVars[] [2021-05-03 00:31:09,839 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:09,845 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:09,849 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:09,856 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:09,867 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_128 5) InVars {main_~e~0=v_main_~e~0_128} OutVars{main_~e~0=v_main_~e~0_128} AuxVars[] AssignedVars[] [2021-05-03 00:31:09,869 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:09,869 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:09,873 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:09,884 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:09,893 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:09,894 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:09,910 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:09,927 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_128 5) InVars {main_~e~0=v_main_~e~0_128} OutVars{main_~e~0=v_main_~e~0_128} AuxVars[] AssignedVars[] [2021-05-03 00:31:09,929 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:09,935 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:09,939 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:09,948 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:09,960 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:09,961 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:09,983 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:09,997 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:10,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:10,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:10,120 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:10,121 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1465811070] [2021-05-03 00:31:10,121 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1465811070] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:10,121 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:10,121 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-05-03 00:31:10,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920404612] [2021-05-03 00:31:10,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-03 00:31:10,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:10,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-03 00:31:10,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-05-03 00:31:10,122 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:10,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:10,465 INFO L93 Difference]: Finished difference Result 70 states and 89 transitions. [2021-05-03 00:31:10,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-03 00:31:10,466 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-05-03 00:31:10,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:10,466 INFO L225 Difference]: With dead ends: 70 [2021-05-03 00:31:10,466 INFO L226 Difference]: Without dead ends: 57 [2021-05-03 00:31:10,467 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 326.1ms TimeCoverageRelationStatistics Valid=135, Invalid=285, Unknown=0, NotChecked=0, Total=420 [2021-05-03 00:31:10,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-05-03 00:31:10,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 32. [2021-05-03 00:31:10,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:10,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2021-05-03 00:31:10,473 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 29 [2021-05-03 00:31:10,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:10,473 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2021-05-03 00:31:10,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:10,473 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2021-05-03 00:31:10,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-05-03 00:31:10,474 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:10,474 INFO L523 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:10,474 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-05-03 00:31:10,474 INFO L428 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:10,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:10,475 INFO L82 PathProgramCache]: Analyzing trace with hash 2140975253, now seen corresponding path program 5 times [2021-05-03 00:31:10,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:10,475 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1280060770] [2021-05-03 00:31:10,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:10,501 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_171 5) InVars {main_~e~0=v_main_~e~0_171} OutVars{main_~e~0=v_main_~e~0_171} AuxVars[] AssignedVars[] [2021-05-03 00:31:10,502 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:10,502 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:10,508 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:10,518 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:10,529 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_171 5) InVars {main_~e~0=v_main_~e~0_171} OutVars{main_~e~0=v_main_~e~0_171} AuxVars[] AssignedVars[] [2021-05-03 00:31:10,530 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:10,531 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:10,535 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:10,546 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:10,558 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_171 5) InVars {main_~e~0=v_main_~e~0_171} OutVars{main_~e~0=v_main_~e~0_171} AuxVars[] AssignedVars[] [2021-05-03 00:31:10,560 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:10,560 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:10,564 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:10,574 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:10,583 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:10,584 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:10,601 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:10,614 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_171 5) InVars {main_~e~0=v_main_~e~0_171} OutVars{main_~e~0=v_main_~e~0_171} AuxVars[] AssignedVars[] [2021-05-03 00:31:10,615 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:10,621 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:10,625 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:10,632 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:10,643 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:10,643 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:10,666 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:10,679 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:10,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:10,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:10,855 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:10,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1280060770] [2021-05-03 00:31:10,855 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1280060770] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:10,855 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:10,856 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-05-03 00:31:10,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695987332] [2021-05-03 00:31:10,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-03 00:31:10,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:10,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-03 00:31:10,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-05-03 00:31:10,856 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:11,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:11,227 INFO L93 Difference]: Finished difference Result 72 states and 91 transitions. [2021-05-03 00:31:11,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 00:31:11,227 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-05-03 00:31:11,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:11,228 INFO L225 Difference]: With dead ends: 72 [2021-05-03 00:31:11,228 INFO L226 Difference]: Without dead ends: 59 [2021-05-03 00:31:11,228 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 396.0ms TimeCoverageRelationStatistics Valid=153, Invalid=353, Unknown=0, NotChecked=0, Total=506 [2021-05-03 00:31:11,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-05-03 00:31:11,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 34. [2021-05-03 00:31:11,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 30 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:11,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2021-05-03 00:31:11,236 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 31 [2021-05-03 00:31:11,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:11,236 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2021-05-03 00:31:11,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:11,236 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2021-05-03 00:31:11,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-03 00:31:11,237 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:11,237 INFO L523 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:11,237 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-05-03 00:31:11,237 INFO L428 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:11,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:11,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1121751475, now seen corresponding path program 6 times [2021-05-03 00:31:11,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:11,237 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [67812178] [2021-05-03 00:31:11,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:11,300 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_219 5) InVars {main_~e~0=v_main_~e~0_219} OutVars{main_~e~0=v_main_~e~0_219} AuxVars[] AssignedVars[] [2021-05-03 00:31:11,301 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:11,309 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:11,312 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:11,318 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:11,328 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_219 5) InVars {main_~e~0=v_main_~e~0_219} OutVars{main_~e~0=v_main_~e~0_219} AuxVars[] AssignedVars[] [2021-05-03 00:31:11,331 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:11,331 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:11,335 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:11,349 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:11,360 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_219 5) InVars {main_~e~0=v_main_~e~0_219} OutVars{main_~e~0=v_main_~e~0_219} AuxVars[] AssignedVars[] [2021-05-03 00:31:11,362 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:11,363 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:11,367 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:11,378 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:11,387 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:11,388 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:11,405 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:11,420 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_219 5) InVars {main_~e~0=v_main_~e~0_219} OutVars{main_~e~0=v_main_~e~0_219} AuxVars[] AssignedVars[] [2021-05-03 00:31:11,422 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:11,423 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:11,429 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:11,441 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:11,453 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:11,455 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:11,476 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:11,492 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:11,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:11,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:11,698 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:11,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [67812178] [2021-05-03 00:31:11,698 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [67812178] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:11,698 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:11,698 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-05-03 00:31:11,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358990246] [2021-05-03 00:31:11,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-03 00:31:11,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:11,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-03 00:31:11,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2021-05-03 00:31:11,700 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand has 15 states, 15 states have (on average 2.0) internal successors, (30), 14 states have internal predecessors, (30), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:12,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:12,165 INFO L93 Difference]: Finished difference Result 72 states and 91 transitions. [2021-05-03 00:31:12,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-03 00:31:12,165 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.0) internal successors, (30), 14 states have internal predecessors, (30), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2021-05-03 00:31:12,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:12,166 INFO L225 Difference]: With dead ends: 72 [2021-05-03 00:31:12,166 INFO L226 Difference]: Without dead ends: 59 [2021-05-03 00:31:12,166 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 455.7ms TimeCoverageRelationStatistics Valid=186, Invalid=516, Unknown=0, NotChecked=0, Total=702 [2021-05-03 00:31:12,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-05-03 00:31:12,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 38. [2021-05-03 00:31:12,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 34 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:12,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2021-05-03 00:31:12,174 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 33 [2021-05-03 00:31:12,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:12,175 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2021-05-03 00:31:12,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 2.0) internal successors, (30), 14 states have internal predecessors, (30), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:12,175 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2021-05-03 00:31:12,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 00:31:12,175 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:12,175 INFO L523 BasicCegarLoop]: trace histogram [6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:12,176 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-05-03 00:31:12,176 INFO L428 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:12,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:12,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1366382042, now seen corresponding path program 7 times [2021-05-03 00:31:12,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:12,176 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [371555936] [2021-05-03 00:31:12,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:12,274 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_274 5) InVars {main_~e~0=v_main_~e~0_274} OutVars{main_~e~0=v_main_~e~0_274} AuxVars[] AssignedVars[] [2021-05-03 00:31:12,275 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:12,281 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:12,287 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:12,293 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:12,306 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_274 5) InVars {main_~e~0=v_main_~e~0_274} OutVars{main_~e~0=v_main_~e~0_274} AuxVars[] AssignedVars[] [2021-05-03 00:31:12,307 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:12,307 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:12,311 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:12,323 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:12,334 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_274 5) InVars {main_~e~0=v_main_~e~0_274} OutVars{main_~e~0=v_main_~e~0_274} AuxVars[] AssignedVars[] [2021-05-03 00:31:12,335 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:12,335 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:12,339 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:12,351 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:12,360 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:12,362 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:12,380 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:12,395 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_274 5) InVars {main_~e~0=v_main_~e~0_274} OutVars{main_~e~0=v_main_~e~0_274} AuxVars[] AssignedVars[] [2021-05-03 00:31:12,397 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:12,405 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:12,409 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:12,414 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:12,426 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:12,428 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:12,452 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:12,470 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:12,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:12,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:12,698 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:12,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [371555936] [2021-05-03 00:31:12,698 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [371555936] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:12,698 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:12,698 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-05-03 00:31:12,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851249691] [2021-05-03 00:31:12,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-03 00:31:12,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:12,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-03 00:31:12,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2021-05-03 00:31:12,699 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 16 states, 16 states have (on average 2.0625) internal successors, (33), 15 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:13,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:13,200 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2021-05-03 00:31:13,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-03 00:31:13,200 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.0625) internal successors, (33), 15 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2021-05-03 00:31:13,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:13,201 INFO L225 Difference]: With dead ends: 74 [2021-05-03 00:31:13,201 INFO L226 Difference]: Without dead ends: 61 [2021-05-03 00:31:13,202 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 541.3ms TimeCoverageRelationStatistics Valid=201, Invalid=611, Unknown=0, NotChecked=0, Total=812 [2021-05-03 00:31:13,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-05-03 00:31:13,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 39. [2021-05-03 00:31:13,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:13,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2021-05-03 00:31:13,210 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 36 [2021-05-03 00:31:13,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:13,210 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2021-05-03 00:31:13,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.0625) internal successors, (33), 15 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:13,210 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2021-05-03 00:31:13,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-05-03 00:31:13,211 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:13,211 INFO L523 BasicCegarLoop]: trace histogram [7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:13,211 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-05-03 00:31:13,211 INFO L428 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:13,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:13,211 INFO L82 PathProgramCache]: Analyzing trace with hash -232982088, now seen corresponding path program 8 times [2021-05-03 00:31:13,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:13,212 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593280556] [2021-05-03 00:31:13,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:13,331 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_152 5) (<= 5 v_main_~e~0_335)) InVars {main_~d~0=v_main_~d~0_152, main_~e~0=v_main_~e~0_335} OutVars{main_~d~0=v_main_~d~0_152, main_~e~0=v_main_~e~0_335} AuxVars[] AssignedVars[] [2021-05-03 00:31:13,333 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:13,335 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:13,337 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:13,356 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:13,370 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_337 5) InVars {main_~e~0=v_main_~e~0_337} OutVars{main_~e~0=v_main_~e~0_337} AuxVars[] AssignedVars[] [2021-05-03 00:31:13,373 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:13,374 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:13,378 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:13,387 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:13,397 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_330 6) InVars {main_~e~0=v_main_~e~0_330} OutVars{main_~e~0=v_main_~e~0_330} AuxVars[] AssignedVars[] [2021-05-03 00:31:13,399 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:13,405 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:13,413 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:13,418 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:13,426 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_150 5) (<= 6 v_main_~e~0_332)) InVars {main_~d~0=v_main_~d~0_150, main_~e~0=v_main_~e~0_332} OutVars{main_~d~0=v_main_~d~0_150, main_~e~0=v_main_~e~0_332} AuxVars[] AssignedVars[] [2021-05-03 00:31:13,441 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.6 percent of original size [2021-05-03 00:31:13,442 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:13,444 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:13,458 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.6 percent of original size 50 [2021-05-03 00:31:13,473 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_152 5) (<= 5 v_main_~e~0_335)) InVars {main_~d~0=v_main_~d~0_152, main_~e~0=v_main_~e~0_335} OutVars{main_~d~0=v_main_~d~0_152, main_~e~0=v_main_~e~0_335} AuxVars[] AssignedVars[] [2021-05-03 00:31:13,474 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:13,486 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:13,488 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:13,496 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:13,510 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_337 5) InVars {main_~e~0=v_main_~e~0_337} OutVars{main_~e~0=v_main_~e~0_337} AuxVars[] AssignedVars[] [2021-05-03 00:31:13,511 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:13,512 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:13,528 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:13,538 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:13,548 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:13,548 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:13,561 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:13,571 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_152 5) (<= 5 v_main_~e~0_335)) InVars {main_~d~0=v_main_~d~0_152, main_~e~0=v_main_~e~0_335} OutVars{main_~d~0=v_main_~d~0_152, main_~e~0=v_main_~e~0_335} AuxVars[] AssignedVars[] [2021-05-03 00:31:13,572 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:13,588 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:13,591 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:13,607 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:13,620 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_337 5) InVars {main_~e~0=v_main_~e~0_337} OutVars{main_~e~0=v_main_~e~0_337} AuxVars[] AssignedVars[] [2021-05-03 00:31:13,621 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:13,626 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:13,629 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:13,634 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:13,657 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:13,658 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:13,675 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:13,688 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:13,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:13,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:13,928 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:13,928 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593280556] [2021-05-03 00:31:13,928 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [593280556] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:13,928 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:13,928 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-05-03 00:31:13,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059154670] [2021-05-03 00:31:13,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-03 00:31:13,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:13,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-03 00:31:13,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2021-05-03 00:31:13,930 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 17 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 16 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:14,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:14,445 INFO L93 Difference]: Finished difference Result 76 states and 94 transitions. [2021-05-03 00:31:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-03 00:31:14,445 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 16 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2021-05-03 00:31:14,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:14,446 INFO L225 Difference]: With dead ends: 76 [2021-05-03 00:31:14,446 INFO L226 Difference]: Without dead ends: 63 [2021-05-03 00:31:14,446 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 533.4ms TimeCoverageRelationStatistics Valid=216, Invalid=714, Unknown=0, NotChecked=0, Total=930 [2021-05-03 00:31:14,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-05-03 00:31:14,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 41. [2021-05-03 00:31:14,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 37 states have (on average 1.135135135135135) internal successors, (42), 37 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:14,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2021-05-03 00:31:14,456 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 38 [2021-05-03 00:31:14,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:14,456 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2021-05-03 00:31:14,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 16 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:14,457 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2021-05-03 00:31:14,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 00:31:14,457 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:14,457 INFO L523 BasicCegarLoop]: trace histogram [8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:14,457 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-05-03 00:31:14,457 INFO L428 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:14,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:14,458 INFO L82 PathProgramCache]: Analyzing trace with hash 376380950, now seen corresponding path program 9 times [2021-05-03 00:31:14,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:14,458 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1665726056] [2021-05-03 00:31:14,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:14,555 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_183 5) (<= 5 v_main_~e~0_411)) InVars {main_~d~0=v_main_~d~0_183, main_~e~0=v_main_~e~0_411} OutVars{main_~d~0=v_main_~d~0_183, main_~e~0=v_main_~e~0_411} AuxVars[] AssignedVars[] [2021-05-03 00:31:14,557 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:14,558 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:14,560 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:14,581 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:14,598 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_413 5) InVars {main_~e~0=v_main_~e~0_413} OutVars{main_~e~0=v_main_~e~0_413} AuxVars[] AssignedVars[] [2021-05-03 00:31:14,617 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:14,617 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:14,622 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:14,633 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:14,647 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_183 5) (<= 5 v_main_~e~0_411)) InVars {main_~d~0=v_main_~d~0_183, main_~e~0=v_main_~e~0_411} OutVars{main_~d~0=v_main_~d~0_183, main_~e~0=v_main_~e~0_411} AuxVars[] AssignedVars[] [2021-05-03 00:31:14,649 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:14,649 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:14,653 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:14,673 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:14,690 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_413 5) InVars {main_~e~0=v_main_~e~0_413} OutVars{main_~e~0=v_main_~e~0_413} AuxVars[] AssignedVars[] [2021-05-03 00:31:14,691 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:14,692 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:14,696 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:14,708 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:14,720 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_183 5) (<= 5 v_main_~e~0_411)) InVars {main_~d~0=v_main_~d~0_183, main_~e~0=v_main_~e~0_411} OutVars{main_~d~0=v_main_~d~0_183, main_~e~0=v_main_~e~0_411} AuxVars[] AssignedVars[] [2021-05-03 00:31:14,721 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:14,722 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:14,725 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:14,746 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:14,763 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_413 5) InVars {main_~e~0=v_main_~e~0_413} OutVars{main_~e~0=v_main_~e~0_413} AuxVars[] AssignedVars[] [2021-05-03 00:31:14,765 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:14,772 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:14,776 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:14,782 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:14,792 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:14,793 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:14,810 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:14,826 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_183 5) (<= 5 v_main_~e~0_411)) InVars {main_~d~0=v_main_~d~0_183, main_~e~0=v_main_~e~0_411} OutVars{main_~d~0=v_main_~d~0_183, main_~e~0=v_main_~e~0_411} AuxVars[] AssignedVars[] [2021-05-03 00:31:14,831 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:14,846 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:14,848 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:14,861 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:14,877 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_413 5) InVars {main_~e~0=v_main_~e~0_413} OutVars{main_~e~0=v_main_~e~0_413} AuxVars[] AssignedVars[] [2021-05-03 00:31:14,879 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:14,886 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:14,891 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:14,897 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:14,911 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:14,912 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:14,935 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:14,948 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:14,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:14,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:15,180 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:15,181 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1665726056] [2021-05-03 00:31:15,181 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1665726056] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:15,181 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:15,181 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-03 00:31:15,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916831697] [2021-05-03 00:31:15,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-03 00:31:15,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:15,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-03 00:31:15,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2021-05-03 00:31:15,182 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 17 states have internal predecessors, (37), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:15,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:15,760 INFO L93 Difference]: Finished difference Result 78 states and 96 transitions. [2021-05-03 00:31:15,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-03 00:31:15,760 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 17 states have internal predecessors, (37), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2021-05-03 00:31:15,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:15,762 INFO L225 Difference]: With dead ends: 78 [2021-05-03 00:31:15,762 INFO L226 Difference]: Without dead ends: 65 [2021-05-03 00:31:15,764 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 593.4ms TimeCoverageRelationStatistics Valid=231, Invalid=825, Unknown=0, NotChecked=0, Total=1056 [2021-05-03 00:31:15,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-05-03 00:31:15,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 43. [2021-05-03 00:31:15,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 39 states have (on average 1.1282051282051282) internal successors, (44), 39 states have internal predecessors, (44), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:15,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2021-05-03 00:31:15,775 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 40 [2021-05-03 00:31:15,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:15,775 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2021-05-03 00:31:15,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 17 states have internal predecessors, (37), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:15,775 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2021-05-03 00:31:15,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-05-03 00:31:15,776 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:15,776 INFO L523 BasicCegarLoop]: trace histogram [9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:15,776 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-05-03 00:31:15,776 INFO L428 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:15,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:15,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1858708212, now seen corresponding path program 10 times [2021-05-03 00:31:15,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:15,776 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670792387] [2021-05-03 00:31:15,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:15,888 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_214 5) (<= 5 v_main_~e~0_492)) InVars {main_~d~0=v_main_~d~0_214, main_~e~0=v_main_~e~0_492} OutVars{main_~d~0=v_main_~d~0_214, main_~e~0=v_main_~e~0_492} AuxVars[] AssignedVars[] [2021-05-03 00:31:15,894 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:15,925 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:15,927 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:15,935 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:15,961 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_494 5) InVars {main_~e~0=v_main_~e~0_494} OutVars{main_~e~0=v_main_~e~0_494} AuxVars[] AssignedVars[] [2021-05-03 00:31:15,963 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:15,970 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:15,977 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:15,982 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:15,996 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_214 5) (<= 5 v_main_~e~0_492)) InVars {main_~d~0=v_main_~d~0_214, main_~e~0=v_main_~e~0_492} OutVars{main_~d~0=v_main_~d~0_214, main_~e~0=v_main_~e~0_492} AuxVars[] AssignedVars[] [2021-05-03 00:31:15,998 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:16,011 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:16,014 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:16,023 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:16,043 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_494 5) InVars {main_~e~0=v_main_~e~0_494} OutVars{main_~e~0=v_main_~e~0_494} AuxVars[] AssignedVars[] [2021-05-03 00:31:16,044 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:16,045 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:16,049 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:16,061 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:16,082 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_214 5) (<= 5 v_main_~e~0_492)) InVars {main_~d~0=v_main_~d~0_214, main_~e~0=v_main_~e~0_492} OutVars{main_~d~0=v_main_~d~0_214, main_~e~0=v_main_~e~0_492} AuxVars[] AssignedVars[] [2021-05-03 00:31:16,084 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:16,098 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:16,101 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:16,108 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:16,125 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_494 5) InVars {main_~e~0=v_main_~e~0_494} OutVars{main_~e~0=v_main_~e~0_494} AuxVars[] AssignedVars[] [2021-05-03 00:31:16,129 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:16,137 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:16,141 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:16,146 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:16,157 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:16,158 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:16,173 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:16,191 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_214 5) (<= 5 v_main_~e~0_492)) InVars {main_~d~0=v_main_~d~0_214, main_~e~0=v_main_~e~0_492} OutVars{main_~d~0=v_main_~d~0_214, main_~e~0=v_main_~e~0_492} AuxVars[] AssignedVars[] [2021-05-03 00:31:16,193 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:16,232 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:16,234 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:16,244 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:16,264 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_494 5) InVars {main_~e~0=v_main_~e~0_494} OutVars{main_~e~0=v_main_~e~0_494} AuxVars[] AssignedVars[] [2021-05-03 00:31:16,266 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:16,267 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:16,272 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:16,283 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:16,297 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:16,298 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:16,318 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:16,330 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:16,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:16,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:16,631 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:16,631 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670792387] [2021-05-03 00:31:16,631 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1670792387] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:16,631 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:16,631 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-05-03 00:31:16,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158995526] [2021-05-03 00:31:16,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-03 00:31:16,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:16,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-03 00:31:16,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2021-05-03 00:31:16,633 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 19 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:17,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:17,226 INFO L93 Difference]: Finished difference Result 80 states and 98 transitions. [2021-05-03 00:31:17,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-03 00:31:17,226 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2021-05-03 00:31:17,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:17,227 INFO L225 Difference]: With dead ends: 80 [2021-05-03 00:31:17,227 INFO L226 Difference]: Without dead ends: 67 [2021-05-03 00:31:17,227 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 629.9ms TimeCoverageRelationStatistics Valid=246, Invalid=944, Unknown=0, NotChecked=0, Total=1190 [2021-05-03 00:31:17,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-05-03 00:31:17,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 45. [2021-05-03 00:31:17,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 41 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:17,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2021-05-03 00:31:17,238 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 42 [2021-05-03 00:31:17,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:17,238 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2021-05-03 00:31:17,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:17,238 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2021-05-03 00:31:17,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-05-03 00:31:17,239 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:17,239 INFO L523 BasicCegarLoop]: trace histogram [10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:17,239 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-05-03 00:31:17,239 INFO L428 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:17,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:17,239 INFO L82 PathProgramCache]: Analyzing trace with hash 446064722, now seen corresponding path program 11 times [2021-05-03 00:31:17,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:17,239 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101641679] [2021-05-03 00:31:17,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:17,331 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_578) (< v_main_~d~0_245 5)) InVars {main_~d~0=v_main_~d~0_245, main_~e~0=v_main_~e~0_578} OutVars{main_~d~0=v_main_~d~0_245, main_~e~0=v_main_~e~0_578} AuxVars[] AssignedVars[] [2021-05-03 00:31:17,335 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:17,336 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:17,338 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:17,374 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:17,406 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_580 5) InVars {main_~e~0=v_main_~e~0_580} OutVars{main_~e~0=v_main_~e~0_580} AuxVars[] AssignedVars[] [2021-05-03 00:31:17,407 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:17,413 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:17,421 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:17,426 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:17,440 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_578) (< v_main_~d~0_245 5)) InVars {main_~d~0=v_main_~d~0_245, main_~e~0=v_main_~e~0_578} OutVars{main_~d~0=v_main_~d~0_245, main_~e~0=v_main_~e~0_578} AuxVars[] AssignedVars[] [2021-05-03 00:31:17,442 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:17,442 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:17,444 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:17,463 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:17,481 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_580 5) InVars {main_~e~0=v_main_~e~0_580} OutVars{main_~e~0=v_main_~e~0_580} AuxVars[] AssignedVars[] [2021-05-03 00:31:17,482 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:17,482 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:17,486 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:17,496 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:17,507 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_578) (< v_main_~d~0_245 5)) InVars {main_~d~0=v_main_~d~0_245, main_~e~0=v_main_~e~0_578} OutVars{main_~d~0=v_main_~d~0_245, main_~e~0=v_main_~e~0_578} AuxVars[] AssignedVars[] [2021-05-03 00:31:17,516 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:17,517 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:17,519 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:17,536 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:17,551 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_580 5) InVars {main_~e~0=v_main_~e~0_580} OutVars{main_~e~0=v_main_~e~0_580} AuxVars[] AssignedVars[] [2021-05-03 00:31:17,551 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:17,560 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:17,564 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:17,569 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:17,579 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:17,579 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:17,593 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:17,607 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_578) (< v_main_~d~0_245 5)) InVars {main_~d~0=v_main_~d~0_245, main_~e~0=v_main_~e~0_578} OutVars{main_~d~0=v_main_~d~0_245, main_~e~0=v_main_~e~0_578} AuxVars[] AssignedVars[] [2021-05-03 00:31:17,625 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:17,626 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:17,628 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:17,653 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:17,667 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_580 5) InVars {main_~e~0=v_main_~e~0_580} OutVars{main_~e~0=v_main_~e~0_580} AuxVars[] AssignedVars[] [2021-05-03 00:31:17,670 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:17,670 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:17,692 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:17,703 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:17,717 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:17,718 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:17,740 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:17,752 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:17,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:17,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:18,028 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:18,031 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1101641679] [2021-05-03 00:31:18,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1101641679] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:18,031 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:18,031 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-05-03 00:31:18,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641467309] [2021-05-03 00:31:18,032 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-03 00:31:18,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:18,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-03 00:31:18,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2021-05-03 00:31:18,033 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 20 states, 20 states have (on average 2.05) internal successors, (41), 19 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:18,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:18,725 INFO L93 Difference]: Finished difference Result 82 states and 100 transitions. [2021-05-03 00:31:18,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-03 00:31:18,725 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.05) internal successors, (41), 19 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2021-05-03 00:31:18,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:18,726 INFO L225 Difference]: With dead ends: 82 [2021-05-03 00:31:18,726 INFO L226 Difference]: Without dead ends: 69 [2021-05-03 00:31:18,727 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 615.0ms TimeCoverageRelationStatistics Valid=261, Invalid=1071, Unknown=0, NotChecked=0, Total=1332 [2021-05-03 00:31:18,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-05-03 00:31:18,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 47. [2021-05-03 00:31:18,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 43 states have (on average 1.1162790697674418) internal successors, (48), 43 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:18,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2021-05-03 00:31:18,757 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 44 [2021-05-03 00:31:18,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:18,757 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2021-05-03 00:31:18,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.05) internal successors, (41), 19 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:18,758 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2021-05-03 00:31:18,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-05-03 00:31:18,758 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:18,758 INFO L523 BasicCegarLoop]: trace histogram [11, 11, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:18,758 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-05-03 00:31:18,758 INFO L428 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:18,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:18,759 INFO L82 PathProgramCache]: Analyzing trace with hash 105336368, now seen corresponding path program 12 times [2021-05-03 00:31:18,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:18,759 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2071859493] [2021-05-03 00:31:18,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:18,860 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_669) (< v_main_~d~0_276 5)) InVars {main_~d~0=v_main_~d~0_276, main_~e~0=v_main_~e~0_669} OutVars{main_~d~0=v_main_~d~0_276, main_~e~0=v_main_~e~0_669} AuxVars[] AssignedVars[] [2021-05-03 00:31:18,861 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:18,877 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:18,881 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:18,890 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:18,908 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_671 5) InVars {main_~e~0=v_main_~e~0_671} OutVars{main_~e~0=v_main_~e~0_671} AuxVars[] AssignedVars[] [2021-05-03 00:31:18,909 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:18,917 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:18,922 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:18,929 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:18,943 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_669) (< v_main_~d~0_276 5)) InVars {main_~d~0=v_main_~d~0_276, main_~e~0=v_main_~e~0_669} OutVars{main_~d~0=v_main_~d~0_276, main_~e~0=v_main_~e~0_669} AuxVars[] AssignedVars[] [2021-05-03 00:31:18,944 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:18,945 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:18,947 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:18,970 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:18,987 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_671 5) InVars {main_~e~0=v_main_~e~0_671} OutVars{main_~e~0=v_main_~e~0_671} AuxVars[] AssignedVars[] [2021-05-03 00:31:18,988 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:18,989 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:18,993 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:19,006 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:19,018 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_669) (< v_main_~d~0_276 5)) InVars {main_~d~0=v_main_~d~0_276, main_~e~0=v_main_~e~0_669} OutVars{main_~d~0=v_main_~d~0_276, main_~e~0=v_main_~e~0_669} AuxVars[] AssignedVars[] [2021-05-03 00:31:19,019 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:19,029 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:19,032 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:19,057 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:19,075 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_671 5) InVars {main_~e~0=v_main_~e~0_671} OutVars{main_~e~0=v_main_~e~0_671} AuxVars[] AssignedVars[] [2021-05-03 00:31:19,077 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:19,084 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:19,089 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:19,095 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:19,105 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:19,106 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:19,122 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:19,136 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_669) (< v_main_~d~0_276 5)) InVars {main_~d~0=v_main_~d~0_276, main_~e~0=v_main_~e~0_669} OutVars{main_~d~0=v_main_~d~0_276, main_~e~0=v_main_~e~0_669} AuxVars[] AssignedVars[] [2021-05-03 00:31:19,137 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:19,152 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:19,154 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:19,164 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:19,181 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_671 5) InVars {main_~e~0=v_main_~e~0_671} OutVars{main_~e~0=v_main_~e~0_671} AuxVars[] AssignedVars[] [2021-05-03 00:31:19,182 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:19,183 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:19,187 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:19,199 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:19,215 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:19,216 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:19,240 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:19,253 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:19,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:19,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:19,543 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:19,543 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2071859493] [2021-05-03 00:31:19,543 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2071859493] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:19,543 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:19,543 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-05-03 00:31:19,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588108721] [2021-05-03 00:31:19,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-05-03 00:31:19,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:19,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-05-03 00:31:19,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2021-05-03 00:31:19,544 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 21 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 20 states have internal predecessors, (43), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:20,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:20,349 INFO L93 Difference]: Finished difference Result 86 states and 105 transitions. [2021-05-03 00:31:20,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-03 00:31:20,350 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 20 states have internal predecessors, (43), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2021-05-03 00:31:20,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:20,350 INFO L225 Difference]: With dead ends: 86 [2021-05-03 00:31:20,350 INFO L226 Difference]: Without dead ends: 73 [2021-05-03 00:31:20,351 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 733.5ms TimeCoverageRelationStatistics Valid=276, Invalid=1206, Unknown=0, NotChecked=0, Total=1482 [2021-05-03 00:31:20,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-05-03 00:31:20,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 51. [2021-05-03 00:31:20,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 47 states have (on average 1.1063829787234043) internal successors, (52), 47 states have internal predecessors, (52), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:20,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2021-05-03 00:31:20,365 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 46 [2021-05-03 00:31:20,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:20,365 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2021-05-03 00:31:20,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 20 states have internal predecessors, (43), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:20,365 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2021-05-03 00:31:20,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-05-03 00:31:20,365 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:20,365 INFO L523 BasicCegarLoop]: trace histogram [12, 12, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:20,365 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-05-03 00:31:20,366 INFO L428 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:20,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:20,366 INFO L82 PathProgramCache]: Analyzing trace with hash -917097330, now seen corresponding path program 13 times [2021-05-03 00:31:20,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:20,366 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1882985587] [2021-05-03 00:31:20,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:20,474 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_758) (< v_main_~d~0_305 5)) InVars {main_~d~0=v_main_~d~0_305, main_~e~0=v_main_~e~0_758} OutVars{main_~d~0=v_main_~d~0_305, main_~e~0=v_main_~e~0_758} AuxVars[] AssignedVars[] [2021-05-03 00:31:20,476 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:20,477 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:20,480 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:20,502 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:20,520 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_760 5) InVars {main_~e~0=v_main_~e~0_760} OutVars{main_~e~0=v_main_~e~0_760} AuxVars[] AssignedVars[] [2021-05-03 00:31:20,522 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:20,523 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:20,527 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:20,541 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:20,553 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_758) (< v_main_~d~0_305 5)) InVars {main_~d~0=v_main_~d~0_305, main_~e~0=v_main_~e~0_758} OutVars{main_~d~0=v_main_~d~0_305, main_~e~0=v_main_~e~0_758} AuxVars[] AssignedVars[] [2021-05-03 00:31:20,555 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:20,556 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:20,559 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:20,582 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:20,600 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_760 5) InVars {main_~e~0=v_main_~e~0_760} OutVars{main_~e~0=v_main_~e~0_760} AuxVars[] AssignedVars[] [2021-05-03 00:31:20,601 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:20,609 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:20,614 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:20,621 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:20,635 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_758) (< v_main_~d~0_305 5)) InVars {main_~d~0=v_main_~d~0_305, main_~e~0=v_main_~e~0_758} OutVars{main_~d~0=v_main_~d~0_305, main_~e~0=v_main_~e~0_758} AuxVars[] AssignedVars[] [2021-05-03 00:31:20,636 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:20,652 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:20,655 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:20,665 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:20,683 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_760 5) InVars {main_~e~0=v_main_~e~0_760} OutVars{main_~e~0=v_main_~e~0_760} AuxVars[] AssignedVars[] [2021-05-03 00:31:20,684 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:20,692 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:20,697 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:20,704 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:20,715 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:20,715 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:20,734 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:20,749 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_758) (< v_main_~d~0_305 5)) InVars {main_~d~0=v_main_~d~0_305, main_~e~0=v_main_~e~0_758} OutVars{main_~d~0=v_main_~d~0_305, main_~e~0=v_main_~e~0_758} AuxVars[] AssignedVars[] [2021-05-03 00:31:20,751 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:20,767 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:20,770 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:20,780 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:20,798 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_760 5) InVars {main_~e~0=v_main_~e~0_760} OutVars{main_~e~0=v_main_~e~0_760} AuxVars[] AssignedVars[] [2021-05-03 00:31:20,799 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:20,807 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:20,811 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:20,818 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:20,832 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:20,833 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:20,856 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:20,868 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:20,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:20,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:21,173 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:21,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1882985587] [2021-05-03 00:31:21,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1882985587] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:21,174 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:21,174 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-05-03 00:31:21,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272993093] [2021-05-03 00:31:21,174 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-05-03 00:31:21,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:21,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-05-03 00:31:21,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2021-05-03 00:31:21,175 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand has 22 states, 22 states have (on average 2.0454545454545454) internal successors, (45), 21 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:21,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:21,934 INFO L93 Difference]: Finished difference Result 87 states and 105 transitions. [2021-05-03 00:31:21,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-03 00:31:21,934 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.0454545454545454) internal successors, (45), 21 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2021-05-03 00:31:21,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:21,935 INFO L225 Difference]: With dead ends: 87 [2021-05-03 00:31:21,935 INFO L226 Difference]: Without dead ends: 74 [2021-05-03 00:31:21,936 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 763.0ms TimeCoverageRelationStatistics Valid=291, Invalid=1349, Unknown=0, NotChecked=0, Total=1640 [2021-05-03 00:31:21,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-05-03 00:31:21,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 53. [2021-05-03 00:31:21,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 49 states have (on average 1.1020408163265305) internal successors, (54), 49 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:21,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2021-05-03 00:31:21,951 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 48 [2021-05-03 00:31:21,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:21,951 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2021-05-03 00:31:21,951 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.0454545454545454) internal successors, (45), 21 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:21,951 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2021-05-03 00:31:21,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-05-03 00:31:21,951 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:21,951 INFO L523 BasicCegarLoop]: trace histogram [12, 12, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:21,951 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-05-03 00:31:21,951 INFO L428 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:21,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:21,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1449132319, now seen corresponding path program 14 times [2021-05-03 00:31:21,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:21,952 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1443655352] [2021-05-03 00:31:21,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:22,054 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_338 5) (<= 5 v_main_~e~0_852)) InVars {main_~d~0=v_main_~d~0_338, main_~e~0=v_main_~e~0_852} OutVars{main_~d~0=v_main_~d~0_338, main_~e~0=v_main_~e~0_852} AuxVars[] AssignedVars[] [2021-05-03 00:31:22,055 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:22,056 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:22,059 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:22,080 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:22,096 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_854 5) InVars {main_~e~0=v_main_~e~0_854} OutVars{main_~e~0=v_main_~e~0_854} AuxVars[] AssignedVars[] [2021-05-03 00:31:22,097 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:22,098 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:22,102 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:22,114 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:22,126 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_338 5) (<= 5 v_main_~e~0_852)) InVars {main_~d~0=v_main_~d~0_338, main_~e~0=v_main_~e~0_852} OutVars{main_~d~0=v_main_~d~0_338, main_~e~0=v_main_~e~0_852} AuxVars[] AssignedVars[] [2021-05-03 00:31:22,127 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:22,128 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:22,131 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:22,152 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:22,169 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_854 5) InVars {main_~e~0=v_main_~e~0_854} OutVars{main_~e~0=v_main_~e~0_854} AuxVars[] AssignedVars[] [2021-05-03 00:31:22,170 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:22,177 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:22,181 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:22,188 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:22,200 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_338 5) (<= 5 v_main_~e~0_852)) InVars {main_~d~0=v_main_~d~0_338, main_~e~0=v_main_~e~0_852} OutVars{main_~d~0=v_main_~d~0_338, main_~e~0=v_main_~e~0_852} AuxVars[] AssignedVars[] [2021-05-03 00:31:22,202 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:22,217 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:22,219 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:22,229 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:22,246 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_854 5) InVars {main_~e~0=v_main_~e~0_854} OutVars{main_~e~0=v_main_~e~0_854} AuxVars[] AssignedVars[] [2021-05-03 00:31:22,247 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:22,248 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:22,252 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:22,264 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:22,275 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:22,276 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:22,292 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:22,306 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_338 5) (<= 5 v_main_~e~0_852)) InVars {main_~d~0=v_main_~d~0_338, main_~e~0=v_main_~e~0_852} OutVars{main_~d~0=v_main_~d~0_338, main_~e~0=v_main_~e~0_852} AuxVars[] AssignedVars[] [2021-05-03 00:31:22,307 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:22,322 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:22,325 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:22,334 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:22,350 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_854 5) InVars {main_~e~0=v_main_~e~0_854} OutVars{main_~e~0=v_main_~e~0_854} AuxVars[] AssignedVars[] [2021-05-03 00:31:22,352 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:22,359 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:22,364 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:22,370 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:22,400 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:22,401 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:22,424 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:22,437 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:22,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:22,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:22,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:22,814 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:22,814 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1443655352] [2021-05-03 00:31:22,814 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1443655352] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:22,814 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:22,814 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-05-03 00:31:22,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485536227] [2021-05-03 00:31:22,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-03 00:31:22,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:22,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-03 00:31:22,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2021-05-03 00:31:22,815 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 23 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 22 states have internal predecessors, (48), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:23,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:23,628 INFO L93 Difference]: Finished difference Result 89 states and 107 transitions. [2021-05-03 00:31:23,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-03 00:31:23,629 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 22 states have internal predecessors, (48), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2021-05-03 00:31:23,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:23,630 INFO L225 Difference]: With dead ends: 89 [2021-05-03 00:31:23,630 INFO L226 Difference]: Without dead ends: 76 [2021-05-03 00:31:23,633 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 27 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 870.6ms TimeCoverageRelationStatistics Valid=306, Invalid=1500, Unknown=0, NotChecked=0, Total=1806 [2021-05-03 00:31:23,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-05-03 00:31:23,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 54. [2021-05-03 00:31:23,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 50 states have (on average 1.1) internal successors, (55), 50 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:23,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2021-05-03 00:31:23,650 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 51 [2021-05-03 00:31:23,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:23,650 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2021-05-03 00:31:23,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 22 states have internal predecessors, (48), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:23,650 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2021-05-03 00:31:23,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-05-03 00:31:23,651 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:23,651 INFO L523 BasicCegarLoop]: trace histogram [13, 13, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:23,651 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-05-03 00:31:23,651 INFO L428 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:23,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:23,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1980622781, now seen corresponding path program 15 times [2021-05-03 00:31:23,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:23,652 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1301160589] [2021-05-03 00:31:23,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:23,746 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_951) (< v_main_~d~0_373 5)) InVars {main_~d~0=v_main_~d~0_373, main_~e~0=v_main_~e~0_951} OutVars{main_~d~0=v_main_~d~0_373, main_~e~0=v_main_~e~0_951} AuxVars[] AssignedVars[] [2021-05-03 00:31:23,747 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:23,759 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:23,762 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:23,770 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:23,784 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_953 5) InVars {main_~e~0=v_main_~e~0_953} OutVars{main_~e~0=v_main_~e~0_953} AuxVars[] AssignedVars[] [2021-05-03 00:31:23,785 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:23,790 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:23,794 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:23,799 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:23,813 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_946 6) InVars {main_~e~0=v_main_~e~0_946} OutVars{main_~e~0=v_main_~e~0_946} AuxVars[] AssignedVars[] [2021-05-03 00:31:23,814 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:23,820 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:23,823 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:23,828 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:23,853 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 6 v_main_~e~0_948) (< v_main_~d~0_371 5)) InVars {main_~d~0=v_main_~d~0_371, main_~e~0=v_main_~e~0_948} OutVars{main_~d~0=v_main_~d~0_371, main_~e~0=v_main_~e~0_948} AuxVars[] AssignedVars[] [2021-05-03 00:31:23,856 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.6 percent of original size [2021-05-03 00:31:23,856 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:23,858 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:23,873 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.6 percent of original size 50 [2021-05-03 00:31:23,888 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_951) (< v_main_~d~0_373 5)) InVars {main_~d~0=v_main_~d~0_373, main_~e~0=v_main_~e~0_951} OutVars{main_~d~0=v_main_~d~0_373, main_~e~0=v_main_~e~0_951} AuxVars[] AssignedVars[] [2021-05-03 00:31:23,892 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:23,905 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:23,907 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:23,917 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:23,932 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_953 5) InVars {main_~e~0=v_main_~e~0_953} OutVars{main_~e~0=v_main_~e~0_953} AuxVars[] AssignedVars[] [2021-05-03 00:31:23,934 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:23,939 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:23,942 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:23,947 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:23,956 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:23,961 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:23,975 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:23,988 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_951) (< v_main_~d~0_373 5)) InVars {main_~d~0=v_main_~d~0_373, main_~e~0=v_main_~e~0_951} OutVars{main_~d~0=v_main_~d~0_373, main_~e~0=v_main_~e~0_951} AuxVars[] AssignedVars[] [2021-05-03 00:31:23,989 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:24,005 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:24,008 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:24,015 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:24,039 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_953 5) InVars {main_~e~0=v_main_~e~0_953} OutVars{main_~e~0=v_main_~e~0_953} AuxVars[] AssignedVars[] [2021-05-03 00:31:24,041 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:24,074 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:24,078 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:24,084 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:24,110 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:24,111 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:24,141 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:24,153 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:24,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:24,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:24,539 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:24,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1301160589] [2021-05-03 00:31:24,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1301160589] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:24,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:24,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-05-03 00:31:24,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216551505] [2021-05-03 00:31:24,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-03 00:31:24,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:24,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-03 00:31:24,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2021-05-03 00:31:24,541 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand has 24 states, 24 states have (on average 2.0833333333333335) internal successors, (50), 23 states have internal predecessors, (50), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:25,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:25,417 INFO L93 Difference]: Finished difference Result 91 states and 109 transitions. [2021-05-03 00:31:25,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-05-03 00:31:25,417 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.0833333333333335) internal successors, (50), 23 states have internal predecessors, (50), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2021-05-03 00:31:25,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:25,418 INFO L225 Difference]: With dead ends: 91 [2021-05-03 00:31:25,418 INFO L226 Difference]: Without dead ends: 78 [2021-05-03 00:31:25,418 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 906.5ms TimeCoverageRelationStatistics Valid=321, Invalid=1659, Unknown=0, NotChecked=0, Total=1980 [2021-05-03 00:31:25,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-05-03 00:31:25,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 56. [2021-05-03 00:31:25,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 52 states have (on average 1.0961538461538463) internal successors, (57), 52 states have internal predecessors, (57), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:25,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2021-05-03 00:31:25,434 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 53 [2021-05-03 00:31:25,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:25,434 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2021-05-03 00:31:25,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.0833333333333335) internal successors, (50), 23 states have internal predecessors, (50), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:25,434 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2021-05-03 00:31:25,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-05-03 00:31:25,434 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:25,435 INFO L523 BasicCegarLoop]: trace histogram [14, 14, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:25,435 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-05-03 00:31:25,435 INFO L428 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:25,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:25,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1641848539, now seen corresponding path program 16 times [2021-05-03 00:31:25,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:25,435 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [763424067] [2021-05-03 00:31:25,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:25,526 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_408 5) (<= 5 v_main_~e~0_1055)) InVars {main_~d~0=v_main_~d~0_408, main_~e~0=v_main_~e~0_1055} OutVars{main_~d~0=v_main_~d~0_408, main_~e~0=v_main_~e~0_1055} AuxVars[] AssignedVars[] [2021-05-03 00:31:25,528 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:25,528 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:25,530 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:25,548 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:25,563 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1057 5) InVars {main_~e~0=v_main_~e~0_1057} OutVars{main_~e~0=v_main_~e~0_1057} AuxVars[] AssignedVars[] [2021-05-03 00:31:25,564 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:25,570 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:25,573 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:25,578 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:25,588 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_408 5) (<= 5 v_main_~e~0_1055)) InVars {main_~d~0=v_main_~d~0_408, main_~e~0=v_main_~e~0_1055} OutVars{main_~d~0=v_main_~d~0_408, main_~e~0=v_main_~e~0_1055} AuxVars[] AssignedVars[] [2021-05-03 00:31:25,589 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:25,601 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:25,603 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:25,611 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:25,626 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1057 5) InVars {main_~e~0=v_main_~e~0_1057} OutVars{main_~e~0=v_main_~e~0_1057} AuxVars[] AssignedVars[] [2021-05-03 00:31:25,626 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:25,627 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:25,630 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:25,640 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:25,650 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_408 5) (<= 5 v_main_~e~0_1055)) InVars {main_~d~0=v_main_~d~0_408, main_~e~0=v_main_~e~0_1055} OutVars{main_~d~0=v_main_~d~0_408, main_~e~0=v_main_~e~0_1055} AuxVars[] AssignedVars[] [2021-05-03 00:31:25,651 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:25,652 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:25,654 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:25,672 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:25,687 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1057 5) InVars {main_~e~0=v_main_~e~0_1057} OutVars{main_~e~0=v_main_~e~0_1057} AuxVars[] AssignedVars[] [2021-05-03 00:31:25,688 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:25,688 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:25,692 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:25,702 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:25,712 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:25,712 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:25,728 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:25,740 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_408 5) (<= 5 v_main_~e~0_1055)) InVars {main_~d~0=v_main_~d~0_408, main_~e~0=v_main_~e~0_1055} OutVars{main_~d~0=v_main_~d~0_408, main_~e~0=v_main_~e~0_1055} AuxVars[] AssignedVars[] [2021-05-03 00:31:25,741 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:25,741 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:25,743 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:25,762 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:25,777 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1057 5) InVars {main_~e~0=v_main_~e~0_1057} OutVars{main_~e~0=v_main_~e~0_1057} AuxVars[] AssignedVars[] [2021-05-03 00:31:25,778 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:25,783 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:25,787 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:25,792 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:25,803 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:25,804 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:25,825 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:25,837 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:25,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:25,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:26,252 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:26,252 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [763424067] [2021-05-03 00:31:26,252 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [763424067] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:26,252 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:26,252 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-05-03 00:31:26,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567821264] [2021-05-03 00:31:26,253 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-05-03 00:31:26,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:26,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-05-03 00:31:26,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2021-05-03 00:31:26,253 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand has 25 states, 25 states have (on average 2.08) internal successors, (52), 24 states have internal predecessors, (52), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:27,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:27,211 INFO L93 Difference]: Finished difference Result 93 states and 111 transitions. [2021-05-03 00:31:27,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-03 00:31:27,211 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.08) internal successors, (52), 24 states have internal predecessors, (52), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2021-05-03 00:31:27,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:27,212 INFO L225 Difference]: With dead ends: 93 [2021-05-03 00:31:27,212 INFO L226 Difference]: Without dead ends: 80 [2021-05-03 00:31:27,212 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 26 SyntacticMatches, 7 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 1030.5ms TimeCoverageRelationStatistics Valid=336, Invalid=1826, Unknown=0, NotChecked=0, Total=2162 [2021-05-03 00:31:27,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-05-03 00:31:27,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 58. [2021-05-03 00:31:27,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 54 states have (on average 1.0925925925925926) internal successors, (59), 54 states have internal predecessors, (59), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:27,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2021-05-03 00:31:27,231 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 55 [2021-05-03 00:31:27,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:27,231 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2021-05-03 00:31:27,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.08) internal successors, (52), 24 states have internal predecessors, (52), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:27,231 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2021-05-03 00:31:27,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-05-03 00:31:27,231 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:27,231 INFO L523 BasicCegarLoop]: trace histogram [15, 15, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:27,231 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-05-03 00:31:27,231 INFO L428 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:27,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:27,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1797650823, now seen corresponding path program 17 times [2021-05-03 00:31:27,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:27,232 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1362007768] [2021-05-03 00:31:27,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:27,330 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_1164) (< v_main_~d~0_443 5)) InVars {main_~d~0=v_main_~d~0_443, main_~e~0=v_main_~e~0_1164} OutVars{main_~d~0=v_main_~d~0_443, main_~e~0=v_main_~e~0_1164} AuxVars[] AssignedVars[] [2021-05-03 00:31:27,331 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:27,332 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:27,334 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:27,352 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:27,368 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1166 5) InVars {main_~e~0=v_main_~e~0_1166} OutVars{main_~e~0=v_main_~e~0_1166} AuxVars[] AssignedVars[] [2021-05-03 00:31:27,369 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:27,369 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:27,373 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:27,383 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:27,394 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_1164) (< v_main_~d~0_443 5)) InVars {main_~d~0=v_main_~d~0_443, main_~e~0=v_main_~e~0_1164} OutVars{main_~d~0=v_main_~d~0_443, main_~e~0=v_main_~e~0_1164} AuxVars[] AssignedVars[] [2021-05-03 00:31:27,395 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:27,395 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:27,397 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:27,417 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:27,433 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1166 5) InVars {main_~e~0=v_main_~e~0_1166} OutVars{main_~e~0=v_main_~e~0_1166} AuxVars[] AssignedVars[] [2021-05-03 00:31:27,434 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:27,434 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:27,438 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:27,449 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:27,459 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_1164) (< v_main_~d~0_443 5)) InVars {main_~d~0=v_main_~d~0_443, main_~e~0=v_main_~e~0_1164} OutVars{main_~d~0=v_main_~d~0_443, main_~e~0=v_main_~e~0_1164} AuxVars[] AssignedVars[] [2021-05-03 00:31:27,460 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:27,461 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:27,463 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:27,481 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:27,497 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1166 5) InVars {main_~e~0=v_main_~e~0_1166} OutVars{main_~e~0=v_main_~e~0_1166} AuxVars[] AssignedVars[] [2021-05-03 00:31:27,498 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:27,504 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:27,507 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:27,512 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:27,531 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:27,532 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:27,548 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:27,560 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_1164) (< v_main_~d~0_443 5)) InVars {main_~d~0=v_main_~d~0_443, main_~e~0=v_main_~e~0_1164} OutVars{main_~d~0=v_main_~d~0_443, main_~e~0=v_main_~e~0_1164} AuxVars[] AssignedVars[] [2021-05-03 00:31:27,561 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:27,573 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:27,575 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:27,583 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:27,599 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1166 5) InVars {main_~e~0=v_main_~e~0_1166} OutVars{main_~e~0=v_main_~e~0_1166} AuxVars[] AssignedVars[] [2021-05-03 00:31:27,599 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:27,605 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:27,609 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:27,614 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:27,626 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:27,626 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:27,648 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:27,660 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:27,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:27,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:28,088 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:28,088 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1362007768] [2021-05-03 00:31:28,088 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1362007768] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:28,088 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:28,088 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-05-03 00:31:28,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476998859] [2021-05-03 00:31:28,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-05-03 00:31:28,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:28,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-05-03 00:31:28,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2021-05-03 00:31:28,089 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 26 states, 26 states have (on average 2.076923076923077) internal successors, (54), 25 states have internal predecessors, (54), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:29,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:29,099 INFO L93 Difference]: Finished difference Result 95 states and 113 transitions. [2021-05-03 00:31:29,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-05-03 00:31:29,099 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.076923076923077) internal successors, (54), 25 states have internal predecessors, (54), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2021-05-03 00:31:29,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:29,100 INFO L225 Difference]: With dead ends: 95 [2021-05-03 00:31:29,100 INFO L226 Difference]: Without dead ends: 82 [2021-05-03 00:31:29,101 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 1064.4ms TimeCoverageRelationStatistics Valid=351, Invalid=2001, Unknown=0, NotChecked=0, Total=2352 [2021-05-03 00:31:29,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-05-03 00:31:29,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 60. [2021-05-03 00:31:29,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 56 states have (on average 1.0892857142857142) internal successors, (61), 56 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:29,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2021-05-03 00:31:29,119 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 57 [2021-05-03 00:31:29,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:29,119 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2021-05-03 00:31:29,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.076923076923077) internal successors, (54), 25 states have internal predecessors, (54), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:29,119 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2021-05-03 00:31:29,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-05-03 00:31:29,119 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:29,120 INFO L523 BasicCegarLoop]: trace histogram [16, 16, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:29,120 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-05-03 00:31:29,120 INFO L428 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:29,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:29,120 INFO L82 PathProgramCache]: Analyzing trace with hash -31719785, now seen corresponding path program 18 times [2021-05-03 00:31:29,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:29,120 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038650816] [2021-05-03 00:31:29,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:29,218 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_478 5) (<= 5 v_main_~e~0_1278)) InVars {main_~d~0=v_main_~d~0_478, main_~e~0=v_main_~e~0_1278} OutVars{main_~d~0=v_main_~d~0_478, main_~e~0=v_main_~e~0_1278} AuxVars[] AssignedVars[] [2021-05-03 00:31:29,220 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:29,233 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:29,236 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:29,244 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:29,262 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1280 5) InVars {main_~e~0=v_main_~e~0_1280} OutVars{main_~e~0=v_main_~e~0_1280} AuxVars[] AssignedVars[] [2021-05-03 00:31:29,263 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:29,264 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:29,267 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:29,278 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:29,290 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_478 5) (<= 5 v_main_~e~0_1278)) InVars {main_~d~0=v_main_~d~0_478, main_~e~0=v_main_~e~0_1278} OutVars{main_~d~0=v_main_~d~0_478, main_~e~0=v_main_~e~0_1278} AuxVars[] AssignedVars[] [2021-05-03 00:31:29,291 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:29,303 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:29,306 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:29,314 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:29,330 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1280 5) InVars {main_~e~0=v_main_~e~0_1280} OutVars{main_~e~0=v_main_~e~0_1280} AuxVars[] AssignedVars[] [2021-05-03 00:31:29,331 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:29,337 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:29,341 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:29,346 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:29,357 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_478 5) (<= 5 v_main_~e~0_1278)) InVars {main_~d~0=v_main_~d~0_478, main_~e~0=v_main_~e~0_1278} OutVars{main_~d~0=v_main_~d~0_478, main_~e~0=v_main_~e~0_1278} AuxVars[] AssignedVars[] [2021-05-03 00:31:29,358 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:29,371 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:29,374 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:29,382 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:29,398 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1280 5) InVars {main_~e~0=v_main_~e~0_1280} OutVars{main_~e~0=v_main_~e~0_1280} AuxVars[] AssignedVars[] [2021-05-03 00:31:29,399 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:29,399 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:29,403 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:29,414 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:29,424 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:29,425 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:29,441 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:29,453 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_478 5) (<= 5 v_main_~e~0_1278)) InVars {main_~d~0=v_main_~d~0_478, main_~e~0=v_main_~e~0_1278} OutVars{main_~d~0=v_main_~d~0_478, main_~e~0=v_main_~e~0_1278} AuxVars[] AssignedVars[] [2021-05-03 00:31:29,454 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:29,455 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:29,457 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:29,475 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:29,491 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1280 5) InVars {main_~e~0=v_main_~e~0_1280} OutVars{main_~e~0=v_main_~e~0_1280} AuxVars[] AssignedVars[] [2021-05-03 00:31:29,492 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:29,493 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:29,497 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:29,507 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:29,520 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:29,521 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:29,542 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:29,554 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:29,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:29,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:30,013 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:30,013 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1038650816] [2021-05-03 00:31:30,014 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1038650816] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:30,014 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:30,014 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-05-03 00:31:30,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563169847] [2021-05-03 00:31:30,014 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-05-03 00:31:30,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:30,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-05-03 00:31:30,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2021-05-03 00:31:30,015 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand has 27 states, 27 states have (on average 2.074074074074074) internal successors, (56), 26 states have internal predecessors, (56), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:31,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:31,100 INFO L93 Difference]: Finished difference Result 97 states and 115 transitions. [2021-05-03 00:31:31,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-05-03 00:31:31,100 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.074074074074074) internal successors, (56), 26 states have internal predecessors, (56), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2021-05-03 00:31:31,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:31,101 INFO L225 Difference]: With dead ends: 97 [2021-05-03 00:31:31,101 INFO L226 Difference]: Without dead ends: 84 [2021-05-03 00:31:31,102 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 29 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 1127.0ms TimeCoverageRelationStatistics Valid=366, Invalid=2184, Unknown=0, NotChecked=0, Total=2550 [2021-05-03 00:31:31,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-05-03 00:31:31,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 62. [2021-05-03 00:31:31,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 58 states have (on average 1.0862068965517242) internal successors, (63), 58 states have internal predecessors, (63), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:31,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2021-05-03 00:31:31,121 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 59 [2021-05-03 00:31:31,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:31,121 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2021-05-03 00:31:31,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.074074074074074) internal successors, (56), 26 states have internal predecessors, (56), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:31,121 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2021-05-03 00:31:31,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-05-03 00:31:31,121 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:31,121 INFO L523 BasicCegarLoop]: trace histogram [17, 17, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:31,121 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-05-03 00:31:31,121 INFO L428 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:31,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:31,122 INFO L82 PathProgramCache]: Analyzing trace with hash 515925813, now seen corresponding path program 19 times [2021-05-03 00:31:31,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:31,122 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1671902870] [2021-05-03 00:31:31,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:31,219 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_513 5) (<= 5 v_main_~e~0_1397)) InVars {main_~d~0=v_main_~d~0_513, main_~e~0=v_main_~e~0_1397} OutVars{main_~d~0=v_main_~d~0_513, main_~e~0=v_main_~e~0_1397} AuxVars[] AssignedVars[] [2021-05-03 00:31:31,221 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:31,221 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:31,223 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:31,243 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:31,260 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1399 5) InVars {main_~e~0=v_main_~e~0_1399} OutVars{main_~e~0=v_main_~e~0_1399} AuxVars[] AssignedVars[] [2021-05-03 00:31:31,261 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:31,268 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:31,271 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:31,276 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:31,288 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_513 5) (<= 5 v_main_~e~0_1397)) InVars {main_~d~0=v_main_~d~0_513, main_~e~0=v_main_~e~0_1397} OutVars{main_~d~0=v_main_~d~0_513, main_~e~0=v_main_~e~0_1397} AuxVars[] AssignedVars[] [2021-05-03 00:31:31,289 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:31,301 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:31,303 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:31,311 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:31,327 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1399 5) InVars {main_~e~0=v_main_~e~0_1399} OutVars{main_~e~0=v_main_~e~0_1399} AuxVars[] AssignedVars[] [2021-05-03 00:31:31,328 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:31,334 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:31,337 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:31,342 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:31,353 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_513 5) (<= 5 v_main_~e~0_1397)) InVars {main_~d~0=v_main_~d~0_513, main_~e~0=v_main_~e~0_1397} OutVars{main_~d~0=v_main_~d~0_513, main_~e~0=v_main_~e~0_1397} AuxVars[] AssignedVars[] [2021-05-03 00:31:31,354 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:31,354 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:31,356 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:31,374 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:31,389 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1399 5) InVars {main_~e~0=v_main_~e~0_1399} OutVars{main_~e~0=v_main_~e~0_1399} AuxVars[] AssignedVars[] [2021-05-03 00:31:31,390 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:31,391 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:31,394 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:31,405 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:31,414 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:31,414 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:31,430 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:31,441 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_513 5) (<= 5 v_main_~e~0_1397)) InVars {main_~d~0=v_main_~d~0_513, main_~e~0=v_main_~e~0_1397} OutVars{main_~d~0=v_main_~d~0_513, main_~e~0=v_main_~e~0_1397} AuxVars[] AssignedVars[] [2021-05-03 00:31:31,442 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:31,455 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:31,457 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:31,464 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:31,480 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1399 5) InVars {main_~e~0=v_main_~e~0_1399} OutVars{main_~e~0=v_main_~e~0_1399} AuxVars[] AssignedVars[] [2021-05-03 00:31:31,481 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:31,486 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:31,489 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:31,495 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:31,507 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:31,507 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:31,528 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:31,541 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:31,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:31,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:32,021 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:32,021 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1671902870] [2021-05-03 00:31:32,021 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1671902870] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:32,022 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:32,022 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-03 00:31:32,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166505694] [2021-05-03 00:31:32,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-03 00:31:32,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:32,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-03 00:31:32,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=627, Unknown=0, NotChecked=0, Total=756 [2021-05-03 00:31:32,023 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand has 28 states, 28 states have (on average 2.0714285714285716) internal successors, (58), 27 states have internal predecessors, (58), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:33,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:33,221 INFO L93 Difference]: Finished difference Result 101 states and 120 transitions. [2021-05-03 00:31:33,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-05-03 00:31:33,221 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.0714285714285716) internal successors, (58), 27 states have internal predecessors, (58), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 61 [2021-05-03 00:31:33,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:33,222 INFO L225 Difference]: With dead ends: 101 [2021-05-03 00:31:33,222 INFO L226 Difference]: Without dead ends: 88 [2021-05-03 00:31:33,223 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 32 SyntacticMatches, 4 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 1205.1ms TimeCoverageRelationStatistics Valid=381, Invalid=2375, Unknown=0, NotChecked=0, Total=2756 [2021-05-03 00:31:33,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-05-03 00:31:33,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 66. [2021-05-03 00:31:33,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 62 states have (on average 1.0806451612903225) internal successors, (67), 62 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:33,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2021-05-03 00:31:33,244 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 61 [2021-05-03 00:31:33,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:33,244 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2021-05-03 00:31:33,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.0714285714285716) internal successors, (58), 27 states have internal predecessors, (58), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:33,245 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2021-05-03 00:31:33,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-05-03 00:31:33,245 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:33,245 INFO L523 BasicCegarLoop]: trace histogram [18, 18, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:33,245 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-05-03 00:31:33,245 INFO L428 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:33,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:33,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1477631917, now seen corresponding path program 20 times [2021-05-03 00:31:33,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:33,246 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [927782141] [2021-05-03 00:31:33,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:33,351 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_546 5) (<= 5 v_main_~e~0_1514)) InVars {main_~d~0=v_main_~d~0_546, main_~e~0=v_main_~e~0_1514} OutVars{main_~d~0=v_main_~d~0_546, main_~e~0=v_main_~e~0_1514} AuxVars[] AssignedVars[] [2021-05-03 00:31:33,352 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:33,366 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:33,368 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:33,377 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:33,394 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1516 5) InVars {main_~e~0=v_main_~e~0_1516} OutVars{main_~e~0=v_main_~e~0_1516} AuxVars[] AssignedVars[] [2021-05-03 00:31:33,395 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:33,396 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:33,400 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:33,412 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:33,424 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_546 5) (<= 5 v_main_~e~0_1514)) InVars {main_~d~0=v_main_~d~0_546, main_~e~0=v_main_~e~0_1514} OutVars{main_~d~0=v_main_~d~0_546, main_~e~0=v_main_~e~0_1514} AuxVars[] AssignedVars[] [2021-05-03 00:31:33,425 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:33,426 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:33,428 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:33,446 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:33,462 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1516 5) InVars {main_~e~0=v_main_~e~0_1516} OutVars{main_~e~0=v_main_~e~0_1516} AuxVars[] AssignedVars[] [2021-05-03 00:31:33,464 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:33,464 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:33,468 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:33,479 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:33,489 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_546 5) (<= 5 v_main_~e~0_1514)) InVars {main_~d~0=v_main_~d~0_546, main_~e~0=v_main_~e~0_1514} OutVars{main_~d~0=v_main_~d~0_546, main_~e~0=v_main_~e~0_1514} AuxVars[] AssignedVars[] [2021-05-03 00:31:33,490 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:33,503 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:33,505 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:33,513 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:33,528 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1516 5) InVars {main_~e~0=v_main_~e~0_1516} OutVars{main_~e~0=v_main_~e~0_1516} AuxVars[] AssignedVars[] [2021-05-03 00:31:33,529 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:33,534 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:33,538 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:33,543 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:33,552 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:33,553 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:33,568 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:33,580 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_546 5) (<= 5 v_main_~e~0_1514)) InVars {main_~d~0=v_main_~d~0_546, main_~e~0=v_main_~e~0_1514} OutVars{main_~d~0=v_main_~d~0_546, main_~e~0=v_main_~e~0_1514} AuxVars[] AssignedVars[] [2021-05-03 00:31:33,581 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:33,581 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:33,583 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:33,602 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:33,617 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1516 5) InVars {main_~e~0=v_main_~e~0_1516} OutVars{main_~e~0=v_main_~e~0_1516} AuxVars[] AssignedVars[] [2021-05-03 00:31:33,618 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:33,618 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:33,622 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:33,632 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:33,645 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:33,646 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:33,667 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:33,679 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:33,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:33,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:34,262 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:34,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [927782141] [2021-05-03 00:31:34,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [927782141] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:34,262 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:34,262 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-05-03 00:31:34,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718825497] [2021-05-03 00:31:34,262 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-05-03 00:31:34,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:34,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-05-03 00:31:34,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=678, Unknown=0, NotChecked=0, Total=812 [2021-05-03 00:31:34,263 INFO L87 Difference]: Start difference. First operand 66 states and 70 transitions. Second operand has 29 states, 29 states have (on average 2.0689655172413794) internal successors, (60), 28 states have internal predecessors, (60), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:35,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:35,519 INFO L93 Difference]: Finished difference Result 102 states and 120 transitions. [2021-05-03 00:31:35,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-03 00:31:35,519 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.0689655172413794) internal successors, (60), 28 states have internal predecessors, (60), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2021-05-03 00:31:35,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:35,520 INFO L225 Difference]: With dead ends: 102 [2021-05-03 00:31:35,520 INFO L226 Difference]: Without dead ends: 89 [2021-05-03 00:31:35,521 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 29 SyntacticMatches, 8 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 552 ImplicationChecksByTransitivity, 1369.2ms TimeCoverageRelationStatistics Valid=396, Invalid=2574, Unknown=0, NotChecked=0, Total=2970 [2021-05-03 00:31:35,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-05-03 00:31:35,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 68. [2021-05-03 00:31:35,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 64 states have (on average 1.078125) internal successors, (69), 64 states have internal predecessors, (69), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:35,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2021-05-03 00:31:35,546 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 63 [2021-05-03 00:31:35,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:35,546 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2021-05-03 00:31:35,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.0689655172413794) internal successors, (60), 28 states have internal predecessors, (60), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:35,546 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2021-05-03 00:31:35,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-05-03 00:31:35,546 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:35,546 INFO L523 BasicCegarLoop]: trace histogram [18, 18, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:35,546 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-05-03 00:31:35,547 INFO L428 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:35,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:35,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1396097850, now seen corresponding path program 21 times [2021-05-03 00:31:35,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:35,547 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1066926922] [2021-05-03 00:31:35,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:35,655 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_583 5) (<= 5 v_main_~e~0_1636)) InVars {main_~d~0=v_main_~d~0_583, main_~e~0=v_main_~e~0_1636} OutVars{main_~d~0=v_main_~d~0_583, main_~e~0=v_main_~e~0_1636} AuxVars[] AssignedVars[] [2021-05-03 00:31:35,657 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:35,657 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:35,659 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:35,679 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:35,696 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1638 5) InVars {main_~e~0=v_main_~e~0_1638} OutVars{main_~e~0=v_main_~e~0_1638} AuxVars[] AssignedVars[] [2021-05-03 00:31:35,697 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:35,703 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:35,707 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:35,712 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:35,723 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_583 5) (<= 5 v_main_~e~0_1636)) InVars {main_~d~0=v_main_~d~0_583, main_~e~0=v_main_~e~0_1636} OutVars{main_~d~0=v_main_~d~0_583, main_~e~0=v_main_~e~0_1636} AuxVars[] AssignedVars[] [2021-05-03 00:31:35,724 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:35,736 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:35,738 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:35,746 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:35,761 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1638 5) InVars {main_~e~0=v_main_~e~0_1638} OutVars{main_~e~0=v_main_~e~0_1638} AuxVars[] AssignedVars[] [2021-05-03 00:31:35,761 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:35,762 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:35,765 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:35,776 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:35,786 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_583 5) (<= 5 v_main_~e~0_1636)) InVars {main_~d~0=v_main_~d~0_583, main_~e~0=v_main_~e~0_1636} OutVars{main_~d~0=v_main_~d~0_583, main_~e~0=v_main_~e~0_1636} AuxVars[] AssignedVars[] [2021-05-03 00:31:35,787 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:35,800 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:35,802 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:35,809 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:35,824 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1638 5) InVars {main_~e~0=v_main_~e~0_1638} OutVars{main_~e~0=v_main_~e~0_1638} AuxVars[] AssignedVars[] [2021-05-03 00:31:35,825 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:35,826 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:35,829 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:35,839 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:35,849 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:35,849 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:35,864 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:35,876 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_583 5) (<= 5 v_main_~e~0_1636)) InVars {main_~d~0=v_main_~d~0_583, main_~e~0=v_main_~e~0_1636} OutVars{main_~d~0=v_main_~d~0_583, main_~e~0=v_main_~e~0_1636} AuxVars[] AssignedVars[] [2021-05-03 00:31:35,877 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:35,889 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:35,891 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:35,899 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:35,914 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1638 5) InVars {main_~e~0=v_main_~e~0_1638} OutVars{main_~e~0=v_main_~e~0_1638} AuxVars[] AssignedVars[] [2021-05-03 00:31:35,915 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:35,921 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:35,924 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:35,930 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:35,942 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:35,943 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:35,963 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:35,975 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:35,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:36,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:36,549 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:36,549 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1066926922] [2021-05-03 00:31:36,549 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1066926922] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:36,550 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:36,550 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-05-03 00:31:36,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194558517] [2021-05-03 00:31:36,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-05-03 00:31:36,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:36,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-05-03 00:31:36,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=731, Unknown=0, NotChecked=0, Total=870 [2021-05-03 00:31:36,551 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand has 30 states, 30 states have (on average 2.1) internal successors, (63), 29 states have internal predecessors, (63), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:37,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:37,925 INFO L93 Difference]: Finished difference Result 104 states and 122 transitions. [2021-05-03 00:31:37,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-03 00:31:37,926 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.1) internal successors, (63), 29 states have internal predecessors, (63), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2021-05-03 00:31:37,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:37,926 INFO L225 Difference]: With dead ends: 104 [2021-05-03 00:31:37,926 INFO L226 Difference]: Without dead ends: 91 [2021-05-03 00:31:37,927 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 7 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 584 ImplicationChecksByTransitivity, 1384.8ms TimeCoverageRelationStatistics Valid=411, Invalid=2781, Unknown=0, NotChecked=0, Total=3192 [2021-05-03 00:31:37,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-05-03 00:31:37,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 69. [2021-05-03 00:31:37,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 65 states have (on average 1.0769230769230769) internal successors, (70), 65 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:37,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2021-05-03 00:31:37,952 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 66 [2021-05-03 00:31:37,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:37,952 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2021-05-03 00:31:37,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.1) internal successors, (63), 29 states have internal predecessors, (63), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:37,952 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2021-05-03 00:31:37,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-05-03 00:31:37,952 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:37,952 INFO L523 BasicCegarLoop]: trace histogram [19, 19, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:37,952 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-05-03 00:31:37,952 INFO L428 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:37,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:37,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1740861672, now seen corresponding path program 22 times [2021-05-03 00:31:37,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:37,953 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [377397577] [2021-05-03 00:31:37,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:38,058 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_622 5) (<= 5 v_main_~e~0_1763)) InVars {main_~d~0=v_main_~d~0_622, main_~e~0=v_main_~e~0_1763} OutVars{main_~d~0=v_main_~d~0_622, main_~e~0=v_main_~e~0_1763} AuxVars[] AssignedVars[] [2021-05-03 00:31:38,059 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:38,073 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:38,075 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:38,084 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:38,101 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1765 5) InVars {main_~e~0=v_main_~e~0_1765} OutVars{main_~e~0=v_main_~e~0_1765} AuxVars[] AssignedVars[] [2021-05-03 00:31:38,102 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:38,108 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:38,112 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:38,118 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:38,129 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1758 6) InVars {main_~e~0=v_main_~e~0_1758} OutVars{main_~e~0=v_main_~e~0_1758} AuxVars[] AssignedVars[] [2021-05-03 00:31:38,130 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:38,131 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:38,134 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:38,144 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:38,154 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 6 v_main_~e~0_1760) (< v_main_~d~0_620 5)) InVars {main_~d~0=v_main_~d~0_620, main_~e~0=v_main_~e~0_1760} OutVars{main_~d~0=v_main_~d~0_620, main_~e~0=v_main_~e~0_1760} AuxVars[] AssignedVars[] [2021-05-03 00:31:38,155 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.6 percent of original size [2021-05-03 00:31:38,155 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:38,157 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:38,173 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.6 percent of original size 50 [2021-05-03 00:31:38,188 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_622 5) (<= 5 v_main_~e~0_1763)) InVars {main_~d~0=v_main_~d~0_622, main_~e~0=v_main_~e~0_1763} OutVars{main_~d~0=v_main_~d~0_622, main_~e~0=v_main_~e~0_1763} AuxVars[] AssignedVars[] [2021-05-03 00:31:38,189 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:38,202 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:38,204 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:38,212 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:38,228 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1765 5) InVars {main_~e~0=v_main_~e~0_1765} OutVars{main_~e~0=v_main_~e~0_1765} AuxVars[] AssignedVars[] [2021-05-03 00:31:38,229 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:38,235 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:38,239 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:38,244 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:38,254 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:38,254 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:38,269 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:38,281 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_622 5) (<= 5 v_main_~e~0_1763)) InVars {main_~d~0=v_main_~d~0_622, main_~e~0=v_main_~e~0_1763} OutVars{main_~d~0=v_main_~d~0_622, main_~e~0=v_main_~e~0_1763} AuxVars[] AssignedVars[] [2021-05-03 00:31:38,282 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:38,295 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:38,297 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:38,304 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:38,321 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1765 5) InVars {main_~e~0=v_main_~e~0_1765} OutVars{main_~e~0=v_main_~e~0_1765} AuxVars[] AssignedVars[] [2021-05-03 00:31:38,322 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:38,322 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:38,333 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:38,344 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:38,356 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:38,357 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:38,378 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:38,390 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:38,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:38,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:38,969 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:38,969 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [377397577] [2021-05-03 00:31:38,969 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [377397577] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:38,969 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:38,969 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-05-03 00:31:38,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111789858] [2021-05-03 00:31:38,969 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-05-03 00:31:38,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:38,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-05-03 00:31:38,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=786, Unknown=0, NotChecked=0, Total=930 [2021-05-03 00:31:38,970 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand has 31 states, 31 states have (on average 2.096774193548387) internal successors, (65), 30 states have internal predecessors, (65), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:40,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:40,402 INFO L93 Difference]: Finished difference Result 106 states and 124 transitions. [2021-05-03 00:31:40,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-03 00:31:40,403 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.096774193548387) internal successors, (65), 30 states have internal predecessors, (65), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2021-05-03 00:31:40,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:40,403 INFO L225 Difference]: With dead ends: 106 [2021-05-03 00:31:40,403 INFO L226 Difference]: Without dead ends: 93 [2021-05-03 00:31:40,404 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 35 SyntacticMatches, 5 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 1466.0ms TimeCoverageRelationStatistics Valid=426, Invalid=2996, Unknown=0, NotChecked=0, Total=3422 [2021-05-03 00:31:40,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-05-03 00:31:40,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 71. [2021-05-03 00:31:40,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 67 states have (on average 1.0746268656716418) internal successors, (72), 67 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:40,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2021-05-03 00:31:40,428 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 68 [2021-05-03 00:31:40,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:40,428 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2021-05-03 00:31:40,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 2.096774193548387) internal successors, (65), 30 states have internal predecessors, (65), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:40,428 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2021-05-03 00:31:40,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-05-03 00:31:40,428 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:40,428 INFO L523 BasicCegarLoop]: trace histogram [20, 20, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:40,428 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-05-03 00:31:40,429 INFO L428 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:40,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:40,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1291920522, now seen corresponding path program 23 times [2021-05-03 00:31:40,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:40,429 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [682839095] [2021-05-03 00:31:40,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:40,528 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_1895) (< v_main_~d~0_661 5)) InVars {main_~d~0=v_main_~d~0_661, main_~e~0=v_main_~e~0_1895} OutVars{main_~d~0=v_main_~d~0_661, main_~e~0=v_main_~e~0_1895} AuxVars[] AssignedVars[] [2021-05-03 00:31:40,529 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:40,542 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:40,544 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:40,552 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:40,570 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1897 5) InVars {main_~e~0=v_main_~e~0_1897} OutVars{main_~e~0=v_main_~e~0_1897} AuxVars[] AssignedVars[] [2021-05-03 00:31:40,570 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:40,571 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:40,575 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:40,585 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:40,597 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_1895) (< v_main_~d~0_661 5)) InVars {main_~d~0=v_main_~d~0_661, main_~e~0=v_main_~e~0_1895} OutVars{main_~d~0=v_main_~d~0_661, main_~e~0=v_main_~e~0_1895} AuxVars[] AssignedVars[] [2021-05-03 00:31:40,598 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:40,611 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:40,613 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:40,622 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:40,639 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1897 5) InVars {main_~e~0=v_main_~e~0_1897} OutVars{main_~e~0=v_main_~e~0_1897} AuxVars[] AssignedVars[] [2021-05-03 00:31:40,640 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:40,640 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:40,644 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:40,655 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:40,667 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_1895) (< v_main_~d~0_661 5)) InVars {main_~d~0=v_main_~d~0_661, main_~e~0=v_main_~e~0_1895} OutVars{main_~d~0=v_main_~d~0_661, main_~e~0=v_main_~e~0_1895} AuxVars[] AssignedVars[] [2021-05-03 00:31:40,668 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:40,668 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:40,670 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:40,690 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:40,707 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1897 5) InVars {main_~e~0=v_main_~e~0_1897} OutVars{main_~e~0=v_main_~e~0_1897} AuxVars[] AssignedVars[] [2021-05-03 00:31:40,708 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:40,709 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:40,712 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:40,723 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:40,734 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:40,735 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:40,751 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:40,763 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_1895) (< v_main_~d~0_661 5)) InVars {main_~d~0=v_main_~d~0_661, main_~e~0=v_main_~e~0_1895} OutVars{main_~d~0=v_main_~d~0_661, main_~e~0=v_main_~e~0_1895} AuxVars[] AssignedVars[] [2021-05-03 00:31:40,764 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:40,764 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:40,766 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:40,784 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:40,800 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_1897 5) InVars {main_~e~0=v_main_~e~0_1897} OutVars{main_~e~0=v_main_~e~0_1897} AuxVars[] AssignedVars[] [2021-05-03 00:31:40,801 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:40,806 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:40,810 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:40,815 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:40,827 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:40,828 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:40,849 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:40,862 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:40,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:40,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:41,481 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:41,481 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [682839095] [2021-05-03 00:31:41,481 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [682839095] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:41,482 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:41,482 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2021-05-03 00:31:41,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062728847] [2021-05-03 00:31:41,482 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-05-03 00:31:41,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:41,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-05-03 00:31:41,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=843, Unknown=0, NotChecked=0, Total=992 [2021-05-03 00:31:41,483 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand has 32 states, 32 states have (on average 2.09375) internal successors, (67), 31 states have internal predecessors, (67), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:42,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:42,974 INFO L93 Difference]: Finished difference Result 108 states and 126 transitions. [2021-05-03 00:31:42,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-03 00:31:42,975 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.09375) internal successors, (67), 31 states have internal predecessors, (67), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2021-05-03 00:31:42,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:42,975 INFO L225 Difference]: With dead ends: 108 [2021-05-03 00:31:42,975 INFO L226 Difference]: Without dead ends: 95 [2021-05-03 00:31:42,976 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 37 SyntacticMatches, 4 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 651 ImplicationChecksByTransitivity, 1547.5ms TimeCoverageRelationStatistics Valid=441, Invalid=3219, Unknown=0, NotChecked=0, Total=3660 [2021-05-03 00:31:42,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-05-03 00:31:43,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 73. [2021-05-03 00:31:43,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 69 states have (on average 1.0724637681159421) internal successors, (74), 69 states have internal predecessors, (74), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:43,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2021-05-03 00:31:43,002 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 70 [2021-05-03 00:31:43,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:43,002 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2021-05-03 00:31:43,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.09375) internal successors, (67), 31 states have internal predecessors, (67), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:43,002 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2021-05-03 00:31:43,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-05-03 00:31:43,003 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:43,003 INFO L523 BasicCegarLoop]: trace histogram [21, 21, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:43,003 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-05-03 00:31:43,003 INFO L428 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:43,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:43,003 INFO L82 PathProgramCache]: Analyzing trace with hash 643795028, now seen corresponding path program 24 times [2021-05-03 00:31:43,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:43,003 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [120851926] [2021-05-03 00:31:43,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:43,109 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_2032) (< v_main_~d~0_700 5)) InVars {main_~d~0=v_main_~d~0_700, main_~e~0=v_main_~e~0_2032} OutVars{main_~d~0=v_main_~d~0_700, main_~e~0=v_main_~e~0_2032} AuxVars[] AssignedVars[] [2021-05-03 00:31:43,110 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:43,110 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:43,112 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:43,132 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:43,149 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2034 5) InVars {main_~e~0=v_main_~e~0_2034} OutVars{main_~e~0=v_main_~e~0_2034} AuxVars[] AssignedVars[] [2021-05-03 00:31:43,150 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:43,151 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:43,155 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:43,166 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:43,178 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_2032) (< v_main_~d~0_700 5)) InVars {main_~d~0=v_main_~d~0_700, main_~e~0=v_main_~e~0_2032} OutVars{main_~d~0=v_main_~d~0_700, main_~e~0=v_main_~e~0_2032} AuxVars[] AssignedVars[] [2021-05-03 00:31:43,178 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:43,179 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:43,181 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:43,200 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:43,217 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2034 5) InVars {main_~e~0=v_main_~e~0_2034} OutVars{main_~e~0=v_main_~e~0_2034} AuxVars[] AssignedVars[] [2021-05-03 00:31:43,218 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:43,218 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:43,222 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:43,233 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:43,244 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_2032) (< v_main_~d~0_700 5)) InVars {main_~d~0=v_main_~d~0_700, main_~e~0=v_main_~e~0_2032} OutVars{main_~d~0=v_main_~d~0_700, main_~e~0=v_main_~e~0_2032} AuxVars[] AssignedVars[] [2021-05-03 00:31:43,245 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:43,246 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:43,248 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:43,266 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:43,281 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2034 5) InVars {main_~e~0=v_main_~e~0_2034} OutVars{main_~e~0=v_main_~e~0_2034} AuxVars[] AssignedVars[] [2021-05-03 00:31:43,281 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:43,287 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:43,293 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:43,299 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:43,309 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:43,310 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:43,326 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:43,340 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_2032) (< v_main_~d~0_700 5)) InVars {main_~d~0=v_main_~d~0_700, main_~e~0=v_main_~e~0_2032} OutVars{main_~d~0=v_main_~d~0_700, main_~e~0=v_main_~e~0_2032} AuxVars[] AssignedVars[] [2021-05-03 00:31:43,341 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:43,356 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:43,377 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:43,386 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:43,401 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2034 5) InVars {main_~e~0=v_main_~e~0_2034} OutVars{main_~e~0=v_main_~e~0_2034} AuxVars[] AssignedVars[] [2021-05-03 00:31:43,402 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:43,403 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:43,406 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:43,416 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:43,429 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:43,430 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:43,451 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:43,463 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:43,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:43,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:44,145 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:44,145 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [120851926] [2021-05-03 00:31:44,145 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [120851926] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:44,145 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:44,145 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2021-05-03 00:31:44,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053859307] [2021-05-03 00:31:44,146 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-05-03 00:31:44,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:44,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-05-03 00:31:44,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=902, Unknown=0, NotChecked=0, Total=1056 [2021-05-03 00:31:44,146 INFO L87 Difference]: Start difference. First operand 73 states and 77 transitions. Second operand has 33 states, 33 states have (on average 2.090909090909091) internal successors, (69), 32 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:45,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:45,769 INFO L93 Difference]: Finished difference Result 110 states and 128 transitions. [2021-05-03 00:31:45,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-03 00:31:45,769 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.090909090909091) internal successors, (69), 32 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 72 [2021-05-03 00:31:45,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:45,770 INFO L225 Difference]: With dead ends: 110 [2021-05-03 00:31:45,770 INFO L226 Difference]: Without dead ends: 97 [2021-05-03 00:31:45,771 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 36 SyntacticMatches, 6 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 714 ImplicationChecksByTransitivity, 1672.4ms TimeCoverageRelationStatistics Valid=456, Invalid=3450, Unknown=0, NotChecked=0, Total=3906 [2021-05-03 00:31:45,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-05-03 00:31:45,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 75. [2021-05-03 00:31:45,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 71 states have (on average 1.0704225352112675) internal successors, (76), 71 states have internal predecessors, (76), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:45,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 79 transitions. [2021-05-03 00:31:45,798 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 79 transitions. Word has length 72 [2021-05-03 00:31:45,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:45,799 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 79 transitions. [2021-05-03 00:31:45,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.090909090909091) internal successors, (69), 32 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:45,799 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 79 transitions. [2021-05-03 00:31:45,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-05-03 00:31:45,799 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:45,799 INFO L523 BasicCegarLoop]: trace histogram [22, 22, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:45,799 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-05-03 00:31:45,799 INFO L428 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:45,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:45,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1145599410, now seen corresponding path program 25 times [2021-05-03 00:31:45,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:45,800 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1897828648] [2021-05-03 00:31:45,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:45,901 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_2174) (< v_main_~d~0_739 5)) InVars {main_~d~0=v_main_~d~0_739, main_~e~0=v_main_~e~0_2174} OutVars{main_~d~0=v_main_~d~0_739, main_~e~0=v_main_~e~0_2174} AuxVars[] AssignedVars[] [2021-05-03 00:31:45,902 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:45,902 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:45,904 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:45,924 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:45,942 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2176 5) InVars {main_~e~0=v_main_~e~0_2176} OutVars{main_~e~0=v_main_~e~0_2176} AuxVars[] AssignedVars[] [2021-05-03 00:31:45,943 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:45,949 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:45,953 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:45,958 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:45,970 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_2174) (< v_main_~d~0_739 5)) InVars {main_~d~0=v_main_~d~0_739, main_~e~0=v_main_~e~0_2174} OutVars{main_~d~0=v_main_~d~0_739, main_~e~0=v_main_~e~0_2174} AuxVars[] AssignedVars[] [2021-05-03 00:31:45,971 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:45,972 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:45,974 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:45,994 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:46,011 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2176 5) InVars {main_~e~0=v_main_~e~0_2176} OutVars{main_~e~0=v_main_~e~0_2176} AuxVars[] AssignedVars[] [2021-05-03 00:31:46,012 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:46,018 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:46,022 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:46,028 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:46,040 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_2174) (< v_main_~d~0_739 5)) InVars {main_~d~0=v_main_~d~0_739, main_~e~0=v_main_~e~0_2174} OutVars{main_~d~0=v_main_~d~0_739, main_~e~0=v_main_~e~0_2174} AuxVars[] AssignedVars[] [2021-05-03 00:31:46,041 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:46,042 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:46,044 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:46,064 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:46,081 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2176 5) InVars {main_~e~0=v_main_~e~0_2176} OutVars{main_~e~0=v_main_~e~0_2176} AuxVars[] AssignedVars[] [2021-05-03 00:31:46,082 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:46,088 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:46,092 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:46,097 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:46,108 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:46,109 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:46,129 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:46,141 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_2174) (< v_main_~d~0_739 5)) InVars {main_~d~0=v_main_~d~0_739, main_~e~0=v_main_~e~0_2174} OutVars{main_~d~0=v_main_~d~0_739, main_~e~0=v_main_~e~0_2174} AuxVars[] AssignedVars[] [2021-05-03 00:31:46,142 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:46,143 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:46,145 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:46,163 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:46,178 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2176 5) InVars {main_~e~0=v_main_~e~0_2176} OutVars{main_~e~0=v_main_~e~0_2176} AuxVars[] AssignedVars[] [2021-05-03 00:31:46,179 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:46,180 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:46,183 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:46,193 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:46,206 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:46,206 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:46,227 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:46,239 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:46,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:46,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:46,972 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:46,972 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1897828648] [2021-05-03 00:31:46,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1897828648] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:46,973 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:46,973 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-05-03 00:31:46,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060669817] [2021-05-03 00:31:46,973 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-05-03 00:31:46,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:46,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-05-03 00:31:46,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=963, Unknown=0, NotChecked=0, Total=1122 [2021-05-03 00:31:46,974 INFO L87 Difference]: Start difference. First operand 75 states and 79 transitions. Second operand has 34 states, 34 states have (on average 2.088235294117647) internal successors, (71), 33 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:48,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:48,835 INFO L93 Difference]: Finished difference Result 112 states and 130 transitions. [2021-05-03 00:31:48,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-03 00:31:48,835 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.088235294117647) internal successors, (71), 33 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2021-05-03 00:31:48,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:48,836 INFO L225 Difference]: With dead ends: 112 [2021-05-03 00:31:48,836 INFO L226 Difference]: Without dead ends: 99 [2021-05-03 00:31:48,837 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 38 SyntacticMatches, 5 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 743 ImplicationChecksByTransitivity, 1768.2ms TimeCoverageRelationStatistics Valid=471, Invalid=3689, Unknown=0, NotChecked=0, Total=4160 [2021-05-03 00:31:48,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-05-03 00:31:48,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 77. [2021-05-03 00:31:48,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 73 states have (on average 1.0684931506849316) internal successors, (78), 73 states have internal predecessors, (78), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:48,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 81 transitions. [2021-05-03 00:31:48,866 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 81 transitions. Word has length 74 [2021-05-03 00:31:48,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:48,866 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 81 transitions. [2021-05-03 00:31:48,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.088235294117647) internal successors, (71), 33 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:48,866 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 81 transitions. [2021-05-03 00:31:48,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-05-03 00:31:48,867 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:48,867 INFO L523 BasicCegarLoop]: trace histogram [23, 23, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:48,867 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-05-03 00:31:48,867 INFO L428 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:48,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:48,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1951693936, now seen corresponding path program 26 times [2021-05-03 00:31:48,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:48,867 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117217146] [2021-05-03 00:31:48,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:48,972 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_2321) (< v_main_~d~0_778 5)) InVars {main_~d~0=v_main_~d~0_778, main_~e~0=v_main_~e~0_2321} OutVars{main_~d~0=v_main_~d~0_778, main_~e~0=v_main_~e~0_2321} AuxVars[] AssignedVars[] [2021-05-03 00:31:48,973 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:48,974 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:48,976 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:48,996 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:49,013 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2323 5) InVars {main_~e~0=v_main_~e~0_2323} OutVars{main_~e~0=v_main_~e~0_2323} AuxVars[] AssignedVars[] [2021-05-03 00:31:49,014 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:49,015 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:49,019 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:49,030 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:49,041 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_2321) (< v_main_~d~0_778 5)) InVars {main_~d~0=v_main_~d~0_778, main_~e~0=v_main_~e~0_2321} OutVars{main_~d~0=v_main_~d~0_778, main_~e~0=v_main_~e~0_2321} AuxVars[] AssignedVars[] [2021-05-03 00:31:49,042 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:49,043 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:49,045 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:49,065 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:49,082 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2323 5) InVars {main_~e~0=v_main_~e~0_2323} OutVars{main_~e~0=v_main_~e~0_2323} AuxVars[] AssignedVars[] [2021-05-03 00:31:49,083 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:49,084 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:49,088 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:49,100 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:49,112 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_2321) (< v_main_~d~0_778 5)) InVars {main_~d~0=v_main_~d~0_778, main_~e~0=v_main_~e~0_2321} OutVars{main_~d~0=v_main_~d~0_778, main_~e~0=v_main_~e~0_2321} AuxVars[] AssignedVars[] [2021-05-03 00:31:49,113 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:49,126 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:49,128 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:49,137 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:49,154 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2323 5) InVars {main_~e~0=v_main_~e~0_2323} OutVars{main_~e~0=v_main_~e~0_2323} AuxVars[] AssignedVars[] [2021-05-03 00:31:49,155 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:49,155 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:49,159 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:49,170 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:49,181 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:49,181 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:49,197 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:49,210 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_2321) (< v_main_~d~0_778 5)) InVars {main_~d~0=v_main_~d~0_778, main_~e~0=v_main_~e~0_2321} OutVars{main_~d~0=v_main_~d~0_778, main_~e~0=v_main_~e~0_2321} AuxVars[] AssignedVars[] [2021-05-03 00:31:49,211 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:49,223 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:49,225 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:49,233 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:49,248 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2323 5) InVars {main_~e~0=v_main_~e~0_2323} OutVars{main_~e~0=v_main_~e~0_2323} AuxVars[] AssignedVars[] [2021-05-03 00:31:49,249 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:49,249 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:49,253 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:49,263 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:49,276 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:49,277 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:49,298 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:49,310 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:49,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:49,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:49,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:50,112 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:50,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117217146] [2021-05-03 00:31:50,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2117217146] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:50,113 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:50,113 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-03 00:31:50,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646435295] [2021-05-03 00:31:50,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-03 00:31:50,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:50,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-03 00:31:50,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1026, Unknown=0, NotChecked=0, Total=1190 [2021-05-03 00:31:50,114 INFO L87 Difference]: Start difference. First operand 77 states and 81 transitions. Second operand has 35 states, 35 states have (on average 2.085714285714286) internal successors, (73), 34 states have internal predecessors, (73), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:51,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:51,897 INFO L93 Difference]: Finished difference Result 116 states and 135 transitions. [2021-05-03 00:31:51,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-03 00:31:51,897 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.085714285714286) internal successors, (73), 34 states have internal predecessors, (73), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 76 [2021-05-03 00:31:51,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:51,898 INFO L225 Difference]: With dead ends: 116 [2021-05-03 00:31:51,898 INFO L226 Difference]: Without dead ends: 103 [2021-05-03 00:31:51,899 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 36 SyntacticMatches, 8 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 794 ImplicationChecksByTransitivity, 1875.1ms TimeCoverageRelationStatistics Valid=486, Invalid=3936, Unknown=0, NotChecked=0, Total=4422 [2021-05-03 00:31:51,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-05-03 00:31:51,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 81. [2021-05-03 00:31:51,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 77 states have (on average 1.0649350649350648) internal successors, (82), 77 states have internal predecessors, (82), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:51,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 85 transitions. [2021-05-03 00:31:51,930 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 85 transitions. Word has length 76 [2021-05-03 00:31:51,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:51,930 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 85 transitions. [2021-05-03 00:31:51,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.085714285714286) internal successors, (73), 34 states have internal predecessors, (73), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:51,930 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 85 transitions. [2021-05-03 00:31:51,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-05-03 00:31:51,931 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:51,931 INFO L523 BasicCegarLoop]: trace histogram [24, 24, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:51,931 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-05-03 00:31:51,931 INFO L428 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:51,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:51,931 INFO L82 PathProgramCache]: Analyzing trace with hash -2038263314, now seen corresponding path program 27 times [2021-05-03 00:31:51,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:51,932 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [304095033] [2021-05-03 00:31:51,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:52,031 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_2466) (< v_main_~d~0_815 5)) InVars {main_~d~0=v_main_~d~0_815, main_~e~0=v_main_~e~0_2466} OutVars{main_~d~0=v_main_~d~0_815, main_~e~0=v_main_~e~0_2466} AuxVars[] AssignedVars[] [2021-05-03 00:31:52,032 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:52,033 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:52,035 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:52,055 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:52,072 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2468 5) InVars {main_~e~0=v_main_~e~0_2468} OutVars{main_~e~0=v_main_~e~0_2468} AuxVars[] AssignedVars[] [2021-05-03 00:31:52,073 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:52,073 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:52,077 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:52,088 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:52,100 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_2466) (< v_main_~d~0_815 5)) InVars {main_~d~0=v_main_~d~0_815, main_~e~0=v_main_~e~0_2466} OutVars{main_~d~0=v_main_~d~0_815, main_~e~0=v_main_~e~0_2466} AuxVars[] AssignedVars[] [2021-05-03 00:31:52,101 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:52,114 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:52,116 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:52,124 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:52,142 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2468 5) InVars {main_~e~0=v_main_~e~0_2468} OutVars{main_~e~0=v_main_~e~0_2468} AuxVars[] AssignedVars[] [2021-05-03 00:31:52,143 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:52,143 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:52,147 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:52,158 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:52,170 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_2466) (< v_main_~d~0_815 5)) InVars {main_~d~0=v_main_~d~0_815, main_~e~0=v_main_~e~0_2466} OutVars{main_~d~0=v_main_~d~0_815, main_~e~0=v_main_~e~0_2466} AuxVars[] AssignedVars[] [2021-05-03 00:31:52,171 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:52,184 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:52,186 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:52,195 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:52,212 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2468 5) InVars {main_~e~0=v_main_~e~0_2468} OutVars{main_~e~0=v_main_~e~0_2468} AuxVars[] AssignedVars[] [2021-05-03 00:31:52,213 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:52,214 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:52,217 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:52,229 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:52,239 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:52,240 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:52,257 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:52,270 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_2466) (< v_main_~d~0_815 5)) InVars {main_~d~0=v_main_~d~0_815, main_~e~0=v_main_~e~0_2466} OutVars{main_~d~0=v_main_~d~0_815, main_~e~0=v_main_~e~0_2466} AuxVars[] AssignedVars[] [2021-05-03 00:31:52,271 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:52,284 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:52,286 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:52,294 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:52,321 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2468 5) InVars {main_~e~0=v_main_~e~0_2468} OutVars{main_~e~0=v_main_~e~0_2468} AuxVars[] AssignedVars[] [2021-05-03 00:31:52,322 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:52,328 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:52,332 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:52,337 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:52,351 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:52,352 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:52,373 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:52,385 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:52,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:52,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:53,300 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:53,300 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [304095033] [2021-05-03 00:31:53,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [304095033] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:53,300 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:53,300 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2021-05-03 00:31:53,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344804462] [2021-05-03 00:31:53,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-05-03 00:31:53,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:53,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-05-03 00:31:53,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1091, Unknown=0, NotChecked=0, Total=1260 [2021-05-03 00:31:53,301 INFO L87 Difference]: Start difference. First operand 81 states and 85 transitions. Second operand has 36 states, 36 states have (on average 2.0833333333333335) internal successors, (75), 35 states have internal predecessors, (75), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:55,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:55,192 INFO L93 Difference]: Finished difference Result 117 states and 135 transitions. [2021-05-03 00:31:55,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-03 00:31:55,192 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.0833333333333335) internal successors, (75), 35 states have internal predecessors, (75), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2021-05-03 00:31:55,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:55,193 INFO L225 Difference]: With dead ends: 117 [2021-05-03 00:31:55,193 INFO L226 Difference]: Without dead ends: 104 [2021-05-03 00:31:55,193 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 34 SyntacticMatches, 11 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 881 ImplicationChecksByTransitivity, 2065.3ms TimeCoverageRelationStatistics Valid=501, Invalid=4191, Unknown=0, NotChecked=0, Total=4692 [2021-05-03 00:31:55,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-05-03 00:31:55,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 83. [2021-05-03 00:31:55,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 79 states have (on average 1.0632911392405062) internal successors, (84), 79 states have internal predecessors, (84), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:55,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 87 transitions. [2021-05-03 00:31:55,227 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 87 transitions. Word has length 78 [2021-05-03 00:31:55,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:55,227 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 87 transitions. [2021-05-03 00:31:55,227 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.0833333333333335) internal successors, (75), 35 states have internal predecessors, (75), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:55,227 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 87 transitions. [2021-05-03 00:31:55,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-05-03 00:31:55,228 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:55,228 INFO L523 BasicCegarLoop]: trace histogram [24, 24, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:55,228 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-05-03 00:31:55,228 INFO L428 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:55,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:55,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1541003329, now seen corresponding path program 28 times [2021-05-03 00:31:55,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:55,228 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881778574] [2021-05-03 00:31:55,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:55,333 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_856 5) (<= 5 v_main_~e~0_2616)) InVars {main_~d~0=v_main_~d~0_856, main_~e~0=v_main_~e~0_2616} OutVars{main_~d~0=v_main_~d~0_856, main_~e~0=v_main_~e~0_2616} AuxVars[] AssignedVars[] [2021-05-03 00:31:55,334 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:55,348 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:55,350 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:55,359 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:55,377 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2618 5) InVars {main_~e~0=v_main_~e~0_2618} OutVars{main_~e~0=v_main_~e~0_2618} AuxVars[] AssignedVars[] [2021-05-03 00:31:55,378 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:55,378 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:55,382 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:55,394 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:55,406 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_856 5) (<= 5 v_main_~e~0_2616)) InVars {main_~d~0=v_main_~d~0_856, main_~e~0=v_main_~e~0_2616} OutVars{main_~d~0=v_main_~d~0_856, main_~e~0=v_main_~e~0_2616} AuxVars[] AssignedVars[] [2021-05-03 00:31:55,407 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:55,420 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:55,422 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:55,431 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:55,449 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2618 5) InVars {main_~e~0=v_main_~e~0_2618} OutVars{main_~e~0=v_main_~e~0_2618} AuxVars[] AssignedVars[] [2021-05-03 00:31:55,450 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:55,456 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:55,460 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:55,466 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:55,478 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_856 5) (<= 5 v_main_~e~0_2616)) InVars {main_~d~0=v_main_~d~0_856, main_~e~0=v_main_~e~0_2616} OutVars{main_~d~0=v_main_~d~0_856, main_~e~0=v_main_~e~0_2616} AuxVars[] AssignedVars[] [2021-05-03 00:31:55,479 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:55,492 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:55,495 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:55,503 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:55,520 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2618 5) InVars {main_~e~0=v_main_~e~0_2618} OutVars{main_~e~0=v_main_~e~0_2618} AuxVars[] AssignedVars[] [2021-05-03 00:31:55,521 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:55,522 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:55,525 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:55,536 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:55,547 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:55,548 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:55,564 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:55,577 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_856 5) (<= 5 v_main_~e~0_2616)) InVars {main_~d~0=v_main_~d~0_856, main_~e~0=v_main_~e~0_2616} OutVars{main_~d~0=v_main_~d~0_856, main_~e~0=v_main_~e~0_2616} AuxVars[] AssignedVars[] [2021-05-03 00:31:55,578 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:55,578 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:55,580 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:55,598 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:55,614 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2618 5) InVars {main_~e~0=v_main_~e~0_2618} OutVars{main_~e~0=v_main_~e~0_2618} AuxVars[] AssignedVars[] [2021-05-03 00:31:55,615 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:55,620 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:55,624 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:55,629 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:55,642 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:55,643 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:55,664 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:55,676 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:55,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:55,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:55,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:56,577 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:56,577 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881778574] [2021-05-03 00:31:56,577 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1881778574] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:56,577 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:56,577 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2021-05-03 00:31:56,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807466519] [2021-05-03 00:31:56,577 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-05-03 00:31:56,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:56,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-05-03 00:31:56,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1158, Unknown=0, NotChecked=0, Total=1332 [2021-05-03 00:31:56,578 INFO L87 Difference]: Start difference. First operand 83 states and 87 transitions. Second operand has 37 states, 37 states have (on average 2.108108108108108) internal successors, (78), 36 states have internal predecessors, (78), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:58,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:31:58,531 INFO L93 Difference]: Finished difference Result 119 states and 137 transitions. [2021-05-03 00:31:58,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-03 00:31:58,532 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.108108108108108) internal successors, (78), 36 states have internal predecessors, (78), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2021-05-03 00:31:58,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:31:58,532 INFO L225 Difference]: With dead ends: 119 [2021-05-03 00:31:58,532 INFO L226 Difference]: Without dead ends: 106 [2021-05-03 00:31:58,533 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 37 SyntacticMatches, 10 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 913 ImplicationChecksByTransitivity, 2080.7ms TimeCoverageRelationStatistics Valid=516, Invalid=4454, Unknown=0, NotChecked=0, Total=4970 [2021-05-03 00:31:58,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-05-03 00:31:58,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 84. [2021-05-03 00:31:58,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 80 states have (on average 1.0625) internal successors, (85), 80 states have internal predecessors, (85), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:58,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 88 transitions. [2021-05-03 00:31:58,566 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 88 transitions. Word has length 81 [2021-05-03 00:31:58,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:31:58,566 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 88 transitions. [2021-05-03 00:31:58,567 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.108108108108108) internal successors, (78), 36 states have internal predecessors, (78), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:31:58,567 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 88 transitions. [2021-05-03 00:31:58,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-05-03 00:31:58,567 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:31:58,567 INFO L523 BasicCegarLoop]: trace histogram [25, 25, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:31:58,567 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-05-03 00:31:58,567 INFO L428 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:31:58,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:31:58,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1793386077, now seen corresponding path program 29 times [2021-05-03 00:31:58,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:31:58,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219840156] [2021-05-03 00:31:58,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:31:58,672 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_899 5) (<= 5 v_main_~e~0_2771)) InVars {main_~d~0=v_main_~d~0_899, main_~e~0=v_main_~e~0_2771} OutVars{main_~d~0=v_main_~d~0_899, main_~e~0=v_main_~e~0_2771} AuxVars[] AssignedVars[] [2021-05-03 00:31:58,673 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:58,674 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:58,676 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:58,695 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:58,713 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2773 5) InVars {main_~e~0=v_main_~e~0_2773} OutVars{main_~e~0=v_main_~e~0_2773} AuxVars[] AssignedVars[] [2021-05-03 00:31:58,714 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:58,720 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:58,724 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:58,731 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:58,743 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2766 6) InVars {main_~e~0=v_main_~e~0_2766} OutVars{main_~e~0=v_main_~e~0_2766} AuxVars[] AssignedVars[] [2021-05-03 00:31:58,744 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:58,750 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:58,754 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:58,759 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:58,770 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_897 5) (<= 6 v_main_~e~0_2768)) InVars {main_~d~0=v_main_~d~0_897, main_~e~0=v_main_~e~0_2768} OutVars{main_~d~0=v_main_~d~0_897, main_~e~0=v_main_~e~0_2768} AuxVars[] AssignedVars[] [2021-05-03 00:31:58,771 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.6 percent of original size [2021-05-03 00:31:58,782 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:58,784 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:58,791 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.6 percent of original size 50 [2021-05-03 00:31:58,809 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_899 5) (<= 5 v_main_~e~0_2771)) InVars {main_~d~0=v_main_~d~0_899, main_~e~0=v_main_~e~0_2771} OutVars{main_~d~0=v_main_~d~0_899, main_~e~0=v_main_~e~0_2771} AuxVars[] AssignedVars[] [2021-05-03 00:31:58,810 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:58,811 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:58,813 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:58,832 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:58,850 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2773 5) InVars {main_~e~0=v_main_~e~0_2773} OutVars{main_~e~0=v_main_~e~0_2773} AuxVars[] AssignedVars[] [2021-05-03 00:31:58,851 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:58,857 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:58,860 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:58,866 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:58,877 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:58,877 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:58,894 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:31:58,908 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_899 5) (<= 5 v_main_~e~0_2771)) InVars {main_~d~0=v_main_~d~0_899, main_~e~0=v_main_~e~0_2771} OutVars{main_~d~0=v_main_~d~0_899, main_~e~0=v_main_~e~0_2771} AuxVars[] AssignedVars[] [2021-05-03 00:31:58,909 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:31:58,909 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:58,911 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:31:58,929 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:31:58,946 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2773 5) InVars {main_~e~0=v_main_~e~0_2773} OutVars{main_~e~0=v_main_~e~0_2773} AuxVars[] AssignedVars[] [2021-05-03 00:31:58,947 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:31:58,953 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:58,957 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:31:58,962 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:31:58,977 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:31:58,977 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:31:58,998 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:31:59,011 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:31:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:59,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:31:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:31:59,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:31:59,976 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:31:59,976 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1219840156] [2021-05-03 00:31:59,976 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1219840156] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:31:59,976 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:31:59,976 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2021-05-03 00:31:59,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244948193] [2021-05-03 00:31:59,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-05-03 00:31:59,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:31:59,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-05-03 00:31:59,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1227, Unknown=0, NotChecked=0, Total=1406 [2021-05-03 00:31:59,977 INFO L87 Difference]: Start difference. First operand 84 states and 88 transitions. Second operand has 38 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 37 states have internal predecessors, (80), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:02,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:32:02,055 INFO L93 Difference]: Finished difference Result 121 states and 139 transitions. [2021-05-03 00:32:02,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-03 00:32:02,055 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 37 states have internal predecessors, (80), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2021-05-03 00:32:02,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:32:02,056 INFO L225 Difference]: With dead ends: 121 [2021-05-03 00:32:02,056 INFO L226 Difference]: Without dead ends: 108 [2021-05-03 00:32:02,056 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 36 SyntacticMatches, 12 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 2215.7ms TimeCoverageRelationStatistics Valid=531, Invalid=4725, Unknown=0, NotChecked=0, Total=5256 [2021-05-03 00:32:02,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-05-03 00:32:02,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 86. [2021-05-03 00:32:02,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.0609756097560976) internal successors, (87), 82 states have internal predecessors, (87), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:02,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 90 transitions. [2021-05-03 00:32:02,104 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 90 transitions. Word has length 83 [2021-05-03 00:32:02,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:32:02,104 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 90 transitions. [2021-05-03 00:32:02,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 37 states have internal predecessors, (80), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:02,104 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 90 transitions. [2021-05-03 00:32:02,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-05-03 00:32:02,104 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:32:02,104 INFO L523 BasicCegarLoop]: trace histogram [26, 26, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:32:02,105 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-05-03 00:32:02,105 INFO L428 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:32:02,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:32:02,105 INFO L82 PathProgramCache]: Analyzing trace with hash 2096002427, now seen corresponding path program 30 times [2021-05-03 00:32:02,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:32:02,105 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [422780043] [2021-05-03 00:32:02,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:32:02,213 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_2931) (< v_main_~d~0_942 5)) InVars {main_~d~0=v_main_~d~0_942, main_~e~0=v_main_~e~0_2931} OutVars{main_~d~0=v_main_~d~0_942, main_~e~0=v_main_~e~0_2931} AuxVars[] AssignedVars[] [2021-05-03 00:32:02,214 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:02,215 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:02,217 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:02,237 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:02,255 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2933 5) InVars {main_~e~0=v_main_~e~0_2933} OutVars{main_~e~0=v_main_~e~0_2933} AuxVars[] AssignedVars[] [2021-05-03 00:32:02,255 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:02,256 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:02,260 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:02,271 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:02,282 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_2931) (< v_main_~d~0_942 5)) InVars {main_~d~0=v_main_~d~0_942, main_~e~0=v_main_~e~0_2931} OutVars{main_~d~0=v_main_~d~0_942, main_~e~0=v_main_~e~0_2931} AuxVars[] AssignedVars[] [2021-05-03 00:32:02,283 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:02,296 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:02,299 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:02,307 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:02,325 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2933 5) InVars {main_~e~0=v_main_~e~0_2933} OutVars{main_~e~0=v_main_~e~0_2933} AuxVars[] AssignedVars[] [2021-05-03 00:32:02,326 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:02,332 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:02,336 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:02,341 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:02,353 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_2931) (< v_main_~d~0_942 5)) InVars {main_~d~0=v_main_~d~0_942, main_~e~0=v_main_~e~0_2931} OutVars{main_~d~0=v_main_~d~0_942, main_~e~0=v_main_~e~0_2931} AuxVars[] AssignedVars[] [2021-05-03 00:32:02,354 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:02,354 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:02,357 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:02,377 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:02,394 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2933 5) InVars {main_~e~0=v_main_~e~0_2933} OutVars{main_~e~0=v_main_~e~0_2933} AuxVars[] AssignedVars[] [2021-05-03 00:32:02,395 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:02,401 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:02,405 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:02,411 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:02,422 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:02,422 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:02,440 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:32:02,453 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_2931) (< v_main_~d~0_942 5)) InVars {main_~d~0=v_main_~d~0_942, main_~e~0=v_main_~e~0_2931} OutVars{main_~d~0=v_main_~d~0_942, main_~e~0=v_main_~e~0_2931} AuxVars[] AssignedVars[] [2021-05-03 00:32:02,454 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:02,467 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:02,469 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:02,478 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:02,495 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_2933 5) InVars {main_~e~0=v_main_~e~0_2933} OutVars{main_~e~0=v_main_~e~0_2933} AuxVars[] AssignedVars[] [2021-05-03 00:32:02,495 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:02,502 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:02,505 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:02,511 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:02,526 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:02,526 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:02,547 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:32:02,559 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:32:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:02,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:32:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:02,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:32:03,517 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:32:03,517 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [422780043] [2021-05-03 00:32:03,517 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [422780043] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:32:03,517 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:32:03,517 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2021-05-03 00:32:03,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616353380] [2021-05-03 00:32:03,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-05-03 00:32:03,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:32:03,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-05-03 00:32:03,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1298, Unknown=0, NotChecked=0, Total=1482 [2021-05-03 00:32:03,518 INFO L87 Difference]: Start difference. First operand 86 states and 90 transitions. Second operand has 39 states, 39 states have (on average 2.1025641025641026) internal successors, (82), 38 states have internal predecessors, (82), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:05,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:32:05,708 INFO L93 Difference]: Finished difference Result 123 states and 141 transitions. [2021-05-03 00:32:05,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-03 00:32:05,709 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 2.1025641025641026) internal successors, (82), 38 states have internal predecessors, (82), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2021-05-03 00:32:05,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:32:05,709 INFO L225 Difference]: With dead ends: 123 [2021-05-03 00:32:05,709 INFO L226 Difference]: Without dead ends: 110 [2021-05-03 00:32:05,710 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 41 SyntacticMatches, 8 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 987 ImplicationChecksByTransitivity, 2276.6ms TimeCoverageRelationStatistics Valid=546, Invalid=5004, Unknown=0, NotChecked=0, Total=5550 [2021-05-03 00:32:05,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-05-03 00:32:05,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 88. [2021-05-03 00:32:05,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 84 states have (on average 1.0595238095238095) internal successors, (89), 84 states have internal predecessors, (89), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:05,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 92 transitions. [2021-05-03 00:32:05,759 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 92 transitions. Word has length 85 [2021-05-03 00:32:05,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:32:05,759 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 92 transitions. [2021-05-03 00:32:05,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 39 states, 39 states have (on average 2.1025641025641026) internal successors, (82), 38 states have internal predecessors, (82), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:05,759 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 92 transitions. [2021-05-03 00:32:05,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-05-03 00:32:05,759 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:32:05,760 INFO L523 BasicCegarLoop]: trace histogram [27, 27, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:32:05,760 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-05-03 00:32:05,760 INFO L428 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:32:05,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:32:05,760 INFO L82 PathProgramCache]: Analyzing trace with hash 852538649, now seen corresponding path program 31 times [2021-05-03 00:32:05,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:32:05,760 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1268911704] [2021-05-03 00:32:05,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:32:05,863 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3096) (< v_main_~d~0_985 5)) InVars {main_~d~0=v_main_~d~0_985, main_~e~0=v_main_~e~0_3096} OutVars{main_~d~0=v_main_~d~0_985, main_~e~0=v_main_~e~0_3096} AuxVars[] AssignedVars[] [2021-05-03 00:32:05,864 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:05,865 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:05,867 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:05,887 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:05,904 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3098 5) InVars {main_~e~0=v_main_~e~0_3098} OutVars{main_~e~0=v_main_~e~0_3098} AuxVars[] AssignedVars[] [2021-05-03 00:32:05,905 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:05,911 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:05,915 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:05,920 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:05,932 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3096) (< v_main_~d~0_985 5)) InVars {main_~d~0=v_main_~d~0_985, main_~e~0=v_main_~e~0_3096} OutVars{main_~d~0=v_main_~d~0_985, main_~e~0=v_main_~e~0_3096} AuxVars[] AssignedVars[] [2021-05-03 00:32:05,933 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:05,933 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:05,935 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:05,955 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:05,972 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3098 5) InVars {main_~e~0=v_main_~e~0_3098} OutVars{main_~e~0=v_main_~e~0_3098} AuxVars[] AssignedVars[] [2021-05-03 00:32:05,972 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:05,973 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:05,977 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:05,987 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:05,999 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3096) (< v_main_~d~0_985 5)) InVars {main_~d~0=v_main_~d~0_985, main_~e~0=v_main_~e~0_3096} OutVars{main_~d~0=v_main_~d~0_985, main_~e~0=v_main_~e~0_3096} AuxVars[] AssignedVars[] [2021-05-03 00:32:06,000 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:06,000 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:06,002 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:06,022 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:06,039 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3098 5) InVars {main_~e~0=v_main_~e~0_3098} OutVars{main_~e~0=v_main_~e~0_3098} AuxVars[] AssignedVars[] [2021-05-03 00:32:06,040 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:06,040 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:06,044 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:06,055 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:06,066 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:06,067 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:06,084 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:32:06,098 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3096) (< v_main_~d~0_985 5)) InVars {main_~d~0=v_main_~d~0_985, main_~e~0=v_main_~e~0_3096} OutVars{main_~d~0=v_main_~d~0_985, main_~e~0=v_main_~e~0_3096} AuxVars[] AssignedVars[] [2021-05-03 00:32:06,098 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:06,099 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:06,101 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:06,119 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:06,135 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3098 5) InVars {main_~e~0=v_main_~e~0_3098} OutVars{main_~e~0=v_main_~e~0_3098} AuxVars[] AssignedVars[] [2021-05-03 00:32:06,136 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:06,136 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:06,140 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:06,150 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:06,164 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:06,165 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:06,186 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:32:06,198 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:32:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:06,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:32:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:06,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:32:07,200 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:32:07,200 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1268911704] [2021-05-03 00:32:07,200 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1268911704] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:32:07,200 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:32:07,200 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2021-05-03 00:32:07,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079387611] [2021-05-03 00:32:07,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-05-03 00:32:07,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:32:07,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-05-03 00:32:07,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1371, Unknown=0, NotChecked=0, Total=1560 [2021-05-03 00:32:07,201 INFO L87 Difference]: Start difference. First operand 88 states and 92 transitions. Second operand has 40 states, 40 states have (on average 2.1) internal successors, (84), 39 states have internal predecessors, (84), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:09,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:32:09,545 INFO L93 Difference]: Finished difference Result 125 states and 143 transitions. [2021-05-03 00:32:09,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-05-03 00:32:09,545 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.1) internal successors, (84), 39 states have internal predecessors, (84), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2021-05-03 00:32:09,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:32:09,545 INFO L225 Difference]: With dead ends: 125 [2021-05-03 00:32:09,546 INFO L226 Difference]: Without dead ends: 112 [2021-05-03 00:32:09,546 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 43 SyntacticMatches, 7 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1036 ImplicationChecksByTransitivity, 2348.1ms TimeCoverageRelationStatistics Valid=561, Invalid=5291, Unknown=0, NotChecked=0, Total=5852 [2021-05-03 00:32:09,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-05-03 00:32:09,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 90. [2021-05-03 00:32:09,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 86 states have (on average 1.058139534883721) internal successors, (91), 86 states have internal predecessors, (91), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:09,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 94 transitions. [2021-05-03 00:32:09,585 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 94 transitions. Word has length 87 [2021-05-03 00:32:09,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:32:09,585 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 94 transitions. [2021-05-03 00:32:09,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 2.1) internal successors, (84), 39 states have internal predecessors, (84), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:09,585 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 94 transitions. [2021-05-03 00:32:09,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-05-03 00:32:09,586 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:32:09,586 INFO L523 BasicCegarLoop]: trace histogram [28, 28, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:32:09,586 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-05-03 00:32:09,586 INFO L428 AbstractCegarLoop]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:32:09,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:32:09,586 INFO L82 PathProgramCache]: Analyzing trace with hash -115243721, now seen corresponding path program 32 times [2021-05-03 00:32:09,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:32:09,586 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [653544186] [2021-05-03 00:32:09,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:32:09,695 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3266) (< v_main_~d~0_1028 5)) InVars {main_~d~0=v_main_~d~0_1028, main_~e~0=v_main_~e~0_3266} OutVars{main_~d~0=v_main_~d~0_1028, main_~e~0=v_main_~e~0_3266} AuxVars[] AssignedVars[] [2021-05-03 00:32:09,697 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:09,697 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:09,699 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:09,719 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:09,737 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3268 5) InVars {main_~e~0=v_main_~e~0_3268} OutVars{main_~e~0=v_main_~e~0_3268} AuxVars[] AssignedVars[] [2021-05-03 00:32:09,737 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:09,743 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:09,747 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:09,753 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:09,764 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3266) (< v_main_~d~0_1028 5)) InVars {main_~d~0=v_main_~d~0_1028, main_~e~0=v_main_~e~0_3266} OutVars{main_~d~0=v_main_~d~0_1028, main_~e~0=v_main_~e~0_3266} AuxVars[] AssignedVars[] [2021-05-03 00:32:09,765 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:09,766 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:09,768 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:09,788 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:09,805 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3268 5) InVars {main_~e~0=v_main_~e~0_3268} OutVars{main_~e~0=v_main_~e~0_3268} AuxVars[] AssignedVars[] [2021-05-03 00:32:09,806 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:09,812 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:09,815 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:09,821 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:09,833 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3266) (< v_main_~d~0_1028 5)) InVars {main_~d~0=v_main_~d~0_1028, main_~e~0=v_main_~e~0_3266} OutVars{main_~d~0=v_main_~d~0_1028, main_~e~0=v_main_~e~0_3266} AuxVars[] AssignedVars[] [2021-05-03 00:32:09,834 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:09,834 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:09,836 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:09,856 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:09,874 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3268 5) InVars {main_~e~0=v_main_~e~0_3268} OutVars{main_~e~0=v_main_~e~0_3268} AuxVars[] AssignedVars[] [2021-05-03 00:32:09,875 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:09,881 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:09,885 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:09,890 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:09,901 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:09,902 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:09,919 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:32:09,932 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3266) (< v_main_~d~0_1028 5)) InVars {main_~d~0=v_main_~d~0_1028, main_~e~0=v_main_~e~0_3266} OutVars{main_~d~0=v_main_~d~0_1028, main_~e~0=v_main_~e~0_3266} AuxVars[] AssignedVars[] [2021-05-03 00:32:09,933 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:09,945 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:09,948 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:09,955 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:09,971 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3268 5) InVars {main_~e~0=v_main_~e~0_3268} OutVars{main_~e~0=v_main_~e~0_3268} AuxVars[] AssignedVars[] [2021-05-03 00:32:09,972 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:09,977 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:09,981 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:09,986 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:09,999 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:10,000 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:10,021 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:32:10,033 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:32:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:10,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:32:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:10,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:32:11,048 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:32:11,049 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [653544186] [2021-05-03 00:32:11,049 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [653544186] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:32:11,049 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:32:11,049 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2021-05-03 00:32:11,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293004884] [2021-05-03 00:32:11,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-05-03 00:32:11,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:32:11,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-05-03 00:32:11,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=1446, Unknown=0, NotChecked=0, Total=1640 [2021-05-03 00:32:11,050 INFO L87 Difference]: Start difference. First operand 90 states and 94 transitions. Second operand has 41 states, 41 states have (on average 2.097560975609756) internal successors, (86), 40 states have internal predecessors, (86), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:13,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:32:13,440 INFO L93 Difference]: Finished difference Result 127 states and 145 transitions. [2021-05-03 00:32:13,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-05-03 00:32:13,440 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 2.097560975609756) internal successors, (86), 40 states have internal predecessors, (86), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2021-05-03 00:32:13,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:32:13,441 INFO L225 Difference]: With dead ends: 127 [2021-05-03 00:32:13,441 INFO L226 Difference]: Without dead ends: 114 [2021-05-03 00:32:13,441 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 44 SyntacticMatches, 7 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1079 ImplicationChecksByTransitivity, 2437.0ms TimeCoverageRelationStatistics Valid=576, Invalid=5586, Unknown=0, NotChecked=0, Total=6162 [2021-05-03 00:32:13,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-05-03 00:32:13,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 92. [2021-05-03 00:32:13,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 88 states have (on average 1.0568181818181819) internal successors, (93), 88 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:13,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 96 transitions. [2021-05-03 00:32:13,482 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 96 transitions. Word has length 89 [2021-05-03 00:32:13,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:32:13,482 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 96 transitions. [2021-05-03 00:32:13,483 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 2.097560975609756) internal successors, (86), 40 states have internal predecessors, (86), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:13,483 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 96 transitions. [2021-05-03 00:32:13,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-05-03 00:32:13,483 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:32:13,483 INFO L523 BasicCegarLoop]: trace histogram [29, 29, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:32:13,483 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-05-03 00:32:13,483 INFO L428 AbstractCegarLoop]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:32:13,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:32:13,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1853801941, now seen corresponding path program 33 times [2021-05-03 00:32:13,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:32:13,484 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1519077212] [2021-05-03 00:32:13,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:32:13,588 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3441) (< v_main_~d~0_1071 5)) InVars {main_~d~0=v_main_~d~0_1071, main_~e~0=v_main_~e~0_3441} OutVars{main_~d~0=v_main_~d~0_1071, main_~e~0=v_main_~e~0_3441} AuxVars[] AssignedVars[] [2021-05-03 00:32:13,589 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:13,590 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:13,592 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:13,611 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:13,629 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3443 5) InVars {main_~e~0=v_main_~e~0_3443} OutVars{main_~e~0=v_main_~e~0_3443} AuxVars[] AssignedVars[] [2021-05-03 00:32:13,629 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:13,630 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:13,634 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:13,645 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:13,657 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3441) (< v_main_~d~0_1071 5)) InVars {main_~d~0=v_main_~d~0_1071, main_~e~0=v_main_~e~0_3441} OutVars{main_~d~0=v_main_~d~0_1071, main_~e~0=v_main_~e~0_3441} AuxVars[] AssignedVars[] [2021-05-03 00:32:13,658 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:13,659 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:13,661 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:13,681 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:13,698 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3443 5) InVars {main_~e~0=v_main_~e~0_3443} OutVars{main_~e~0=v_main_~e~0_3443} AuxVars[] AssignedVars[] [2021-05-03 00:32:13,699 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:13,700 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:13,704 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:13,715 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:13,727 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3441) (< v_main_~d~0_1071 5)) InVars {main_~d~0=v_main_~d~0_1071, main_~e~0=v_main_~e~0_3441} OutVars{main_~d~0=v_main_~d~0_1071, main_~e~0=v_main_~e~0_3441} AuxVars[] AssignedVars[] [2021-05-03 00:32:13,728 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:13,728 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:13,731 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:13,750 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:13,767 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3443 5) InVars {main_~e~0=v_main_~e~0_3443} OutVars{main_~e~0=v_main_~e~0_3443} AuxVars[] AssignedVars[] [2021-05-03 00:32:13,768 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:13,768 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:13,772 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:13,784 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:13,794 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:13,795 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:13,812 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:32:13,825 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3441) (< v_main_~d~0_1071 5)) InVars {main_~d~0=v_main_~d~0_1071, main_~e~0=v_main_~e~0_3441} OutVars{main_~d~0=v_main_~d~0_1071, main_~e~0=v_main_~e~0_3441} AuxVars[] AssignedVars[] [2021-05-03 00:32:13,826 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:13,826 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:13,828 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:13,848 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:13,865 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3443 5) InVars {main_~e~0=v_main_~e~0_3443} OutVars{main_~e~0=v_main_~e~0_3443} AuxVars[] AssignedVars[] [2021-05-03 00:32:13,866 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:13,872 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:13,876 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:13,882 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:13,897 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:13,897 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:13,918 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:32:13,931 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:32:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:13,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:32:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:13,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:32:15,142 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:32:15,142 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1519077212] [2021-05-03 00:32:15,142 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1519077212] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:32:15,142 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:32:15,143 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2021-05-03 00:32:15,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309814942] [2021-05-03 00:32:15,143 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-05-03 00:32:15,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:32:15,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-05-03 00:32:15,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1523, Unknown=0, NotChecked=0, Total=1722 [2021-05-03 00:32:15,143 INFO L87 Difference]: Start difference. First operand 92 states and 96 transitions. Second operand has 42 states, 42 states have (on average 2.0952380952380953) internal successors, (88), 41 states have internal predecessors, (88), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:17,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:32:17,871 INFO L93 Difference]: Finished difference Result 131 states and 150 transitions. [2021-05-03 00:32:17,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-05-03 00:32:17,872 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 2.0952380952380953) internal successors, (88), 41 states have internal predecessors, (88), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2021-05-03 00:32:17,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:32:17,872 INFO L225 Difference]: With dead ends: 131 [2021-05-03 00:32:17,872 INFO L226 Difference]: Without dead ends: 118 [2021-05-03 00:32:17,873 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 39 SyntacticMatches, 13 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1172 ImplicationChecksByTransitivity, 2687.2ms TimeCoverageRelationStatistics Valid=591, Invalid=5889, Unknown=0, NotChecked=0, Total=6480 [2021-05-03 00:32:17,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-05-03 00:32:17,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 96. [2021-05-03 00:32:17,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 92 states have (on average 1.0543478260869565) internal successors, (97), 92 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:17,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 100 transitions. [2021-05-03 00:32:17,918 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 100 transitions. Word has length 91 [2021-05-03 00:32:17,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:32:17,918 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 100 transitions. [2021-05-03 00:32:17,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 42 states, 42 states have (on average 2.0952380952380953) internal successors, (88), 41 states have internal predecessors, (88), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:17,918 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 100 transitions. [2021-05-03 00:32:17,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-05-03 00:32:17,919 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:32:17,919 INFO L523 BasicCegarLoop]: trace histogram [30, 30, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:32:17,919 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-05-03 00:32:17,919 INFO L428 AbstractCegarLoop]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:32:17,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:32:17,919 INFO L82 PathProgramCache]: Analyzing trace with hash 26105587, now seen corresponding path program 34 times [2021-05-03 00:32:17,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:32:17,919 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [69153076] [2021-05-03 00:32:17,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:32:18,033 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3614) (< v_main_~d~0_1112 5)) InVars {main_~d~0=v_main_~d~0_1112, main_~e~0=v_main_~e~0_3614} OutVars{main_~d~0=v_main_~d~0_1112, main_~e~0=v_main_~e~0_3614} AuxVars[] AssignedVars[] [2021-05-03 00:32:18,034 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:18,035 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:18,037 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:18,057 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:18,074 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3616 5) InVars {main_~e~0=v_main_~e~0_3616} OutVars{main_~e~0=v_main_~e~0_3616} AuxVars[] AssignedVars[] [2021-05-03 00:32:18,075 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:18,076 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:18,080 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:18,091 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:18,103 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3614) (< v_main_~d~0_1112 5)) InVars {main_~d~0=v_main_~d~0_1112, main_~e~0=v_main_~e~0_3614} OutVars{main_~d~0=v_main_~d~0_1112, main_~e~0=v_main_~e~0_3614} AuxVars[] AssignedVars[] [2021-05-03 00:32:18,103 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:18,104 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:18,106 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:18,126 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:18,143 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3616 5) InVars {main_~e~0=v_main_~e~0_3616} OutVars{main_~e~0=v_main_~e~0_3616} AuxVars[] AssignedVars[] [2021-05-03 00:32:18,144 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:18,150 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:18,154 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:18,159 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:18,173 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3614) (< v_main_~d~0_1112 5)) InVars {main_~d~0=v_main_~d~0_1112, main_~e~0=v_main_~e~0_3614} OutVars{main_~d~0=v_main_~d~0_1112, main_~e~0=v_main_~e~0_3614} AuxVars[] AssignedVars[] [2021-05-03 00:32:18,174 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:18,174 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:18,176 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:18,196 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:18,213 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3616 5) InVars {main_~e~0=v_main_~e~0_3616} OutVars{main_~e~0=v_main_~e~0_3616} AuxVars[] AssignedVars[] [2021-05-03 00:32:18,213 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:18,214 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:18,218 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:18,229 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:18,240 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:18,242 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:18,259 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:32:18,272 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3614) (< v_main_~d~0_1112 5)) InVars {main_~d~0=v_main_~d~0_1112, main_~e~0=v_main_~e~0_3614} OutVars{main_~d~0=v_main_~d~0_1112, main_~e~0=v_main_~e~0_3614} AuxVars[] AssignedVars[] [2021-05-03 00:32:18,273 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:18,285 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:18,287 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:18,295 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:18,311 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3616 5) InVars {main_~e~0=v_main_~e~0_3616} OutVars{main_~e~0=v_main_~e~0_3616} AuxVars[] AssignedVars[] [2021-05-03 00:32:18,312 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:18,318 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:18,322 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:18,327 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:18,341 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:18,342 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:18,363 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:32:18,375 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:32:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:18,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:32:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:18,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:32:19,508 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:32:19,508 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [69153076] [2021-05-03 00:32:19,509 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [69153076] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:32:19,509 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:32:19,509 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2021-05-03 00:32:19,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506833841] [2021-05-03 00:32:19,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-05-03 00:32:19,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:32:19,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-05-03 00:32:19,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=1602, Unknown=0, NotChecked=0, Total=1806 [2021-05-03 00:32:19,510 INFO L87 Difference]: Start difference. First operand 96 states and 100 transitions. Second operand has 43 states, 43 states have (on average 2.0930232558139537) internal successors, (90), 42 states have internal predecessors, (90), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:22,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:32:22,385 INFO L93 Difference]: Finished difference Result 132 states and 150 transitions. [2021-05-03 00:32:22,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-05-03 00:32:22,385 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.0930232558139537) internal successors, (90), 42 states have internal predecessors, (90), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2021-05-03 00:32:22,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:32:22,386 INFO L225 Difference]: With dead ends: 132 [2021-05-03 00:32:22,386 INFO L226 Difference]: Without dead ends: 119 [2021-05-03 00:32:22,386 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 47 SyntacticMatches, 6 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1189 ImplicationChecksByTransitivity, 2672.3ms TimeCoverageRelationStatistics Valid=606, Invalid=6200, Unknown=0, NotChecked=0, Total=6806 [2021-05-03 00:32:22,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-05-03 00:32:22,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 98. [2021-05-03 00:32:22,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 94 states have (on average 1.053191489361702) internal successors, (99), 94 states have internal predecessors, (99), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:22,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 102 transitions. [2021-05-03 00:32:22,434 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 102 transitions. Word has length 93 [2021-05-03 00:32:22,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:32:22,434 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 102 transitions. [2021-05-03 00:32:22,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 2.0930232558139537) internal successors, (90), 42 states have internal predecessors, (90), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:22,434 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 102 transitions. [2021-05-03 00:32:22,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-05-03 00:32:22,434 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:32:22,434 INFO L523 BasicCegarLoop]: trace histogram [30, 30, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:32:22,434 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-05-03 00:32:22,435 INFO L428 AbstractCegarLoop]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:32:22,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:32:22,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1563785062, now seen corresponding path program 35 times [2021-05-03 00:32:22,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:32:22,435 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [48160235] [2021-05-03 00:32:22,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:32:22,546 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3792) (< v_main_~d~0_1157 5)) InVars {main_~d~0=v_main_~d~0_1157, main_~e~0=v_main_~e~0_3792} OutVars{main_~d~0=v_main_~d~0_1157, main_~e~0=v_main_~e~0_3792} AuxVars[] AssignedVars[] [2021-05-03 00:32:22,547 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:22,548 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:22,550 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:22,570 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:22,587 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3794 5) InVars {main_~e~0=v_main_~e~0_3794} OutVars{main_~e~0=v_main_~e~0_3794} AuxVars[] AssignedVars[] [2021-05-03 00:32:22,588 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:22,589 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:22,593 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:22,604 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:22,616 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3792) (< v_main_~d~0_1157 5)) InVars {main_~d~0=v_main_~d~0_1157, main_~e~0=v_main_~e~0_3792} OutVars{main_~d~0=v_main_~d~0_1157, main_~e~0=v_main_~e~0_3792} AuxVars[] AssignedVars[] [2021-05-03 00:32:22,617 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:22,618 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:22,620 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:22,640 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:22,657 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3794 5) InVars {main_~e~0=v_main_~e~0_3794} OutVars{main_~e~0=v_main_~e~0_3794} AuxVars[] AssignedVars[] [2021-05-03 00:32:22,658 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:22,664 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:22,668 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:22,674 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:22,686 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3792) (< v_main_~d~0_1157 5)) InVars {main_~d~0=v_main_~d~0_1157, main_~e~0=v_main_~e~0_3792} OutVars{main_~d~0=v_main_~d~0_1157, main_~e~0=v_main_~e~0_3792} AuxVars[] AssignedVars[] [2021-05-03 00:32:22,687 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:22,701 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:22,703 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:22,711 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:22,729 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3794 5) InVars {main_~e~0=v_main_~e~0_3794} OutVars{main_~e~0=v_main_~e~0_3794} AuxVars[] AssignedVars[] [2021-05-03 00:32:22,730 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:22,731 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:22,735 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:22,746 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:22,757 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:22,757 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:22,774 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:32:22,788 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3792) (< v_main_~d~0_1157 5)) InVars {main_~d~0=v_main_~d~0_1157, main_~e~0=v_main_~e~0_3792} OutVars{main_~d~0=v_main_~d~0_1157, main_~e~0=v_main_~e~0_3792} AuxVars[] AssignedVars[] [2021-05-03 00:32:22,789 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:22,789 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:22,791 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:22,809 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:22,825 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3794 5) InVars {main_~e~0=v_main_~e~0_3794} OutVars{main_~e~0=v_main_~e~0_3794} AuxVars[] AssignedVars[] [2021-05-03 00:32:22,826 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:22,827 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:22,830 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:22,841 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:22,857 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:22,872 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:22,895 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:32:22,907 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:32:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:22,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:32:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:22,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:32:24,260 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:32:24,261 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [48160235] [2021-05-03 00:32:24,261 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [48160235] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:32:24,261 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:32:24,261 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2021-05-03 00:32:24,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229554950] [2021-05-03 00:32:24,261 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-05-03 00:32:24,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:32:24,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-05-03 00:32:24,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=1683, Unknown=0, NotChecked=0, Total=1892 [2021-05-03 00:32:24,262 INFO L87 Difference]: Start difference. First operand 98 states and 102 transitions. Second operand has 44 states, 44 states have (on average 2.1136363636363638) internal successors, (93), 43 states have internal predecessors, (93), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:27,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:32:27,037 INFO L93 Difference]: Finished difference Result 134 states and 152 transitions. [2021-05-03 00:32:27,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-05-03 00:32:27,038 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 2.1136363636363638) internal successors, (93), 43 states have internal predecessors, (93), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2021-05-03 00:32:27,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:32:27,038 INFO L225 Difference]: With dead ends: 134 [2021-05-03 00:32:27,039 INFO L226 Difference]: Without dead ends: 121 [2021-05-03 00:32:27,039 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 39 SyntacticMatches, 16 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1291 ImplicationChecksByTransitivity, 2984.8ms TimeCoverageRelationStatistics Valid=621, Invalid=6519, Unknown=0, NotChecked=0, Total=7140 [2021-05-03 00:32:27,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-05-03 00:32:27,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 99. [2021-05-03 00:32:27,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 95 states have (on average 1.0526315789473684) internal successors, (100), 95 states have internal predecessors, (100), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:27,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 103 transitions. [2021-05-03 00:32:27,086 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 103 transitions. Word has length 96 [2021-05-03 00:32:27,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:32:27,086 INFO L480 AbstractCegarLoop]: Abstraction has 99 states and 103 transitions. [2021-05-03 00:32:27,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 44 states, 44 states have (on average 2.1136363636363638) internal successors, (93), 43 states have internal predecessors, (93), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:27,086 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 103 transitions. [2021-05-03 00:32:27,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-05-03 00:32:27,086 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:32:27,086 INFO L523 BasicCegarLoop]: trace histogram [31, 31, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:32:27,087 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-05-03 00:32:27,087 INFO L428 AbstractCegarLoop]: === Iteration 42 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:32:27,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:32:27,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1374977144, now seen corresponding path program 36 times [2021-05-03 00:32:27,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:32:27,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [246890633] [2021-05-03 00:32:27,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:32:27,196 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3975) (< v_main_~d~0_1204 5)) InVars {main_~d~0=v_main_~d~0_1204, main_~e~0=v_main_~e~0_3975} OutVars{main_~d~0=v_main_~d~0_1204, main_~e~0=v_main_~e~0_3975} AuxVars[] AssignedVars[] [2021-05-03 00:32:27,197 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:27,197 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:27,199 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:27,220 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:27,239 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3977 5) InVars {main_~e~0=v_main_~e~0_3977} OutVars{main_~e~0=v_main_~e~0_3977} AuxVars[] AssignedVars[] [2021-05-03 00:32:27,240 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:27,240 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:27,245 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:27,256 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:27,268 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3970 6) InVars {main_~e~0=v_main_~e~0_3970} OutVars{main_~e~0=v_main_~e~0_3970} AuxVars[] AssignedVars[] [2021-05-03 00:32:27,268 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:27,269 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:27,273 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:27,285 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:27,297 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1202 5) (<= 6 v_main_~e~0_3972)) InVars {main_~d~0=v_main_~d~0_1202, main_~e~0=v_main_~e~0_3972} OutVars{main_~d~0=v_main_~d~0_1202, main_~e~0=v_main_~e~0_3972} AuxVars[] AssignedVars[] [2021-05-03 00:32:27,298 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.6 percent of original size [2021-05-03 00:32:27,299 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:27,307 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:27,324 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.6 percent of original size 50 [2021-05-03 00:32:27,343 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3975) (< v_main_~d~0_1204 5)) InVars {main_~d~0=v_main_~d~0_1204, main_~e~0=v_main_~e~0_3975} OutVars{main_~d~0=v_main_~d~0_1204, main_~e~0=v_main_~e~0_3975} AuxVars[] AssignedVars[] [2021-05-03 00:32:27,344 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:27,357 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:27,359 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:27,368 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:27,388 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3977 5) InVars {main_~e~0=v_main_~e~0_3977} OutVars{main_~e~0=v_main_~e~0_3977} AuxVars[] AssignedVars[] [2021-05-03 00:32:27,389 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:27,395 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:27,399 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:27,404 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:27,415 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:27,416 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:27,433 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:32:27,447 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_3975) (< v_main_~d~0_1204 5)) InVars {main_~d~0=v_main_~d~0_1204, main_~e~0=v_main_~e~0_3975} OutVars{main_~d~0=v_main_~d~0_1204, main_~e~0=v_main_~e~0_3975} AuxVars[] AssignedVars[] [2021-05-03 00:32:27,448 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:27,448 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:27,450 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:27,470 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:27,487 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_3977 5) InVars {main_~e~0=v_main_~e~0_3977} OutVars{main_~e~0=v_main_~e~0_3977} AuxVars[] AssignedVars[] [2021-05-03 00:32:27,488 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:27,494 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:27,498 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:27,505 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:27,520 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:27,521 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:27,542 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:32:27,554 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:32:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:27,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:32:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:27,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:32:28,891 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:32:28,892 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [246890633] [2021-05-03 00:32:28,892 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [246890633] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:32:28,892 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:32:28,892 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2021-05-03 00:32:28,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587007242] [2021-05-03 00:32:28,892 INFO L460 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-05-03 00:32:28,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:32:28,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-05-03 00:32:28,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=1766, Unknown=0, NotChecked=0, Total=1980 [2021-05-03 00:32:28,893 INFO L87 Difference]: Start difference. First operand 99 states and 103 transitions. Second operand has 45 states, 45 states have (on average 2.111111111111111) internal successors, (95), 44 states have internal predecessors, (95), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:31,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:32:31,764 INFO L93 Difference]: Finished difference Result 136 states and 154 transitions. [2021-05-03 00:32:31,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-05-03 00:32:31,764 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 2.111111111111111) internal successors, (95), 44 states have internal predecessors, (95), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2021-05-03 00:32:31,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:32:31,765 INFO L225 Difference]: With dead ends: 136 [2021-05-03 00:32:31,765 INFO L226 Difference]: Without dead ends: 123 [2021-05-03 00:32:31,765 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 42 SyntacticMatches, 14 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1338 ImplicationChecksByTransitivity, 3017.1ms TimeCoverageRelationStatistics Valid=636, Invalid=6846, Unknown=0, NotChecked=0, Total=7482 [2021-05-03 00:32:31,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-05-03 00:32:31,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 101. [2021-05-03 00:32:31,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 97 states have (on average 1.0515463917525774) internal successors, (102), 97 states have internal predecessors, (102), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:31,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 105 transitions. [2021-05-03 00:32:31,814 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 105 transitions. Word has length 98 [2021-05-03 00:32:31,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:32:31,814 INFO L480 AbstractCegarLoop]: Abstraction has 101 states and 105 transitions. [2021-05-03 00:32:31,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 2.111111111111111) internal successors, (95), 44 states have internal predecessors, (95), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:31,815 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 105 transitions. [2021-05-03 00:32:31,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-05-03 00:32:31,815 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:32:31,815 INFO L523 BasicCegarLoop]: trace histogram [32, 32, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:32:31,815 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-05-03 00:32:31,815 INFO L428 AbstractCegarLoop]: === Iteration 43 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:32:31,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:32:31,815 INFO L82 PathProgramCache]: Analyzing trace with hash -563023658, now seen corresponding path program 37 times [2021-05-03 00:32:31,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:32:31,816 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1567100009] [2021-05-03 00:32:31,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:32:31,924 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1251 5) (<= 5 v_main_~e~0_4163)) InVars {main_~d~0=v_main_~d~0_1251, main_~e~0=v_main_~e~0_4163} OutVars{main_~d~0=v_main_~d~0_1251, main_~e~0=v_main_~e~0_4163} AuxVars[] AssignedVars[] [2021-05-03 00:32:31,925 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:31,926 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:31,928 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:31,948 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:31,966 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_4165 5) InVars {main_~e~0=v_main_~e~0_4165} OutVars{main_~e~0=v_main_~e~0_4165} AuxVars[] AssignedVars[] [2021-05-03 00:32:31,967 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:31,973 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:31,977 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:31,983 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:31,996 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1251 5) (<= 5 v_main_~e~0_4163)) InVars {main_~d~0=v_main_~d~0_1251, main_~e~0=v_main_~e~0_4163} OutVars{main_~d~0=v_main_~d~0_1251, main_~e~0=v_main_~e~0_4163} AuxVars[] AssignedVars[] [2021-05-03 00:32:31,996 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:31,997 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:31,999 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:32,019 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:32,037 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_4165 5) InVars {main_~e~0=v_main_~e~0_4165} OutVars{main_~e~0=v_main_~e~0_4165} AuxVars[] AssignedVars[] [2021-05-03 00:32:32,038 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:32,038 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:32,042 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:32,053 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:32,066 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1251 5) (<= 5 v_main_~e~0_4163)) InVars {main_~d~0=v_main_~d~0_1251, main_~e~0=v_main_~e~0_4163} OutVars{main_~d~0=v_main_~d~0_1251, main_~e~0=v_main_~e~0_4163} AuxVars[] AssignedVars[] [2021-05-03 00:32:32,067 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:32,067 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:32,070 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:32,090 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:32,107 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_4165 5) InVars {main_~e~0=v_main_~e~0_4165} OutVars{main_~e~0=v_main_~e~0_4165} AuxVars[] AssignedVars[] [2021-05-03 00:32:32,108 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:32,114 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:32,118 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:32,124 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:32,134 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:32,135 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:32,152 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:32:32,165 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1251 5) (<= 5 v_main_~e~0_4163)) InVars {main_~d~0=v_main_~d~0_1251, main_~e~0=v_main_~e~0_4163} OutVars{main_~d~0=v_main_~d~0_1251, main_~e~0=v_main_~e~0_4163} AuxVars[] AssignedVars[] [2021-05-03 00:32:32,166 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:32,167 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:32,169 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:32,189 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:32,207 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_4165 5) InVars {main_~e~0=v_main_~e~0_4165} OutVars{main_~e~0=v_main_~e~0_4165} AuxVars[] AssignedVars[] [2021-05-03 00:32:32,207 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:32,214 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:32,218 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:32,223 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:32,239 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:32,239 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:32,260 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:32:32,273 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:32:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:32,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:32:32,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:32,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:32:33,298 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:32:33,299 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1567100009] [2021-05-03 00:32:33,299 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1567100009] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:32:33,299 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:32:33,299 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2021-05-03 00:32:33,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955778152] [2021-05-03 00:32:33,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-05-03 00:32:33,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:32:33,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-05-03 00:32:33,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=1851, Unknown=0, NotChecked=0, Total=2070 [2021-05-03 00:32:33,324 INFO L87 Difference]: Start difference. First operand 101 states and 105 transitions. Second operand has 46 states, 46 states have (on average 2.108695652173913) internal successors, (97), 45 states have internal predecessors, (97), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:35,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:32:35,798 INFO L93 Difference]: Finished difference Result 138 states and 156 transitions. [2021-05-03 00:32:35,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-05-03 00:32:35,799 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 2.108695652173913) internal successors, (97), 45 states have internal predecessors, (97), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2021-05-03 00:32:35,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:32:35,800 INFO L225 Difference]: With dead ends: 138 [2021-05-03 00:32:35,800 INFO L226 Difference]: Without dead ends: 125 [2021-05-03 00:32:35,800 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 48 SyntacticMatches, 9 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1358 ImplicationChecksByTransitivity, 2340.2ms TimeCoverageRelationStatistics Valid=651, Invalid=7181, Unknown=0, NotChecked=0, Total=7832 [2021-05-03 00:32:35,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-05-03 00:32:35,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 103. [2021-05-03 00:32:35,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 99 states have (on average 1.0505050505050506) internal successors, (104), 99 states have internal predecessors, (104), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:35,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 107 transitions. [2021-05-03 00:32:35,864 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 107 transitions. Word has length 100 [2021-05-03 00:32:35,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:32:35,865 INFO L480 AbstractCegarLoop]: Abstraction has 103 states and 107 transitions. [2021-05-03 00:32:35,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 2.108695652173913) internal successors, (97), 45 states have internal predecessors, (97), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:35,865 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 107 transitions. [2021-05-03 00:32:35,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-05-03 00:32:35,866 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:32:35,866 INFO L523 BasicCegarLoop]: trace histogram [33, 33, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:32:35,866 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-05-03 00:32:35,866 INFO L428 AbstractCegarLoop]: === Iteration 44 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:32:35,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:32:35,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1034012084, now seen corresponding path program 38 times [2021-05-03 00:32:35,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:32:35,866 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1843680436] [2021-05-03 00:32:35,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:32:35,986 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1298 5) (<= 5 v_main_~e~0_4356)) InVars {main_~d~0=v_main_~d~0_1298, main_~e~0=v_main_~e~0_4356} OutVars{main_~d~0=v_main_~d~0_1298, main_~e~0=v_main_~e~0_4356} AuxVars[] AssignedVars[] [2021-05-03 00:32:35,987 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:36,001 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:36,003 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:36,011 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:36,030 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_4358 5) InVars {main_~e~0=v_main_~e~0_4358} OutVars{main_~e~0=v_main_~e~0_4358} AuxVars[] AssignedVars[] [2021-05-03 00:32:36,031 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:36,032 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:36,036 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:36,047 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:36,059 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1298 5) (<= 5 v_main_~e~0_4356)) InVars {main_~d~0=v_main_~d~0_1298, main_~e~0=v_main_~e~0_4356} OutVars{main_~d~0=v_main_~d~0_1298, main_~e~0=v_main_~e~0_4356} AuxVars[] AssignedVars[] [2021-05-03 00:32:36,060 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:36,074 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:36,076 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:36,084 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:36,103 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_4358 5) InVars {main_~e~0=v_main_~e~0_4358} OutVars{main_~e~0=v_main_~e~0_4358} AuxVars[] AssignedVars[] [2021-05-03 00:32:36,104 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:36,104 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:36,108 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:36,120 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:36,133 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1298 5) (<= 5 v_main_~e~0_4356)) InVars {main_~d~0=v_main_~d~0_1298, main_~e~0=v_main_~e~0_4356} OutVars{main_~d~0=v_main_~d~0_1298, main_~e~0=v_main_~e~0_4356} AuxVars[] AssignedVars[] [2021-05-03 00:32:36,134 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:36,134 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:36,136 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:36,157 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:36,175 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_4358 5) InVars {main_~e~0=v_main_~e~0_4358} OutVars{main_~e~0=v_main_~e~0_4358} AuxVars[] AssignedVars[] [2021-05-03 00:32:36,175 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:36,182 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:36,185 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:36,191 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:36,202 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:36,202 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:36,220 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:32:36,233 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1298 5) (<= 5 v_main_~e~0_4356)) InVars {main_~d~0=v_main_~d~0_1298, main_~e~0=v_main_~e~0_4356} OutVars{main_~d~0=v_main_~d~0_1298, main_~e~0=v_main_~e~0_4356} AuxVars[] AssignedVars[] [2021-05-03 00:32:36,234 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:36,234 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:36,237 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:36,256 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:36,273 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_4358 5) InVars {main_~e~0=v_main_~e~0_4358} OutVars{main_~e~0=v_main_~e~0_4358} AuxVars[] AssignedVars[] [2021-05-03 00:32:36,274 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:36,280 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:36,284 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:36,290 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:36,305 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:36,306 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:36,327 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:32:36,340 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:32:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:36,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:32:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:36,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:32:37,779 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:32:37,780 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1843680436] [2021-05-03 00:32:37,780 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1843680436] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:32:37,780 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:32:37,780 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2021-05-03 00:32:37,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599510115] [2021-05-03 00:32:37,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states [2021-05-03 00:32:37,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:32:37,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-05-03 00:32:37,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=1938, Unknown=0, NotChecked=0, Total=2162 [2021-05-03 00:32:37,781 INFO L87 Difference]: Start difference. First operand 103 states and 107 transitions. Second operand has 47 states, 47 states have (on average 2.106382978723404) internal successors, (99), 46 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:40,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:32:40,702 INFO L93 Difference]: Finished difference Result 140 states and 158 transitions. [2021-05-03 00:32:40,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-05-03 00:32:40,703 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 2.106382978723404) internal successors, (99), 46 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2021-05-03 00:32:40,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:32:40,703 INFO L225 Difference]: With dead ends: 140 [2021-05-03 00:32:40,703 INFO L226 Difference]: Without dead ends: 127 [2021-05-03 00:32:40,704 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 43 SyntacticMatches, 15 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1449 ImplicationChecksByTransitivity, 3071.1ms TimeCoverageRelationStatistics Valid=666, Invalid=7524, Unknown=0, NotChecked=0, Total=8190 [2021-05-03 00:32:40,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-05-03 00:32:40,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 105. [2021-05-03 00:32:40,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 101 states have (on average 1.0495049504950495) internal successors, (106), 101 states have internal predecessors, (106), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:40,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 109 transitions. [2021-05-03 00:32:40,757 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 109 transitions. Word has length 102 [2021-05-03 00:32:40,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:32:40,757 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 109 transitions. [2021-05-03 00:32:40,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 47 states, 47 states have (on average 2.106382978723404) internal successors, (99), 46 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:40,757 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 109 transitions. [2021-05-03 00:32:40,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-05-03 00:32:40,757 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:32:40,758 INFO L523 BasicCegarLoop]: trace histogram [34, 34, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:32:40,758 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-05-03 00:32:40,758 INFO L428 AbstractCegarLoop]: === Iteration 45 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:32:40,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:32:40,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1812931822, now seen corresponding path program 39 times [2021-05-03 00:32:40,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:32:40,758 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324387011] [2021-05-03 00:32:40,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:32:40,870 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_4554) (< v_main_~d~0_1345 5)) InVars {main_~d~0=v_main_~d~0_1345, main_~e~0=v_main_~e~0_4554} OutVars{main_~d~0=v_main_~d~0_1345, main_~e~0=v_main_~e~0_4554} AuxVars[] AssignedVars[] [2021-05-03 00:32:40,871 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:40,885 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:40,887 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:40,896 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:40,915 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_4556 5) InVars {main_~e~0=v_main_~e~0_4556} OutVars{main_~e~0=v_main_~e~0_4556} AuxVars[] AssignedVars[] [2021-05-03 00:32:40,915 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:40,916 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:40,920 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:40,932 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:40,945 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_4554) (< v_main_~d~0_1345 5)) InVars {main_~d~0=v_main_~d~0_1345, main_~e~0=v_main_~e~0_4554} OutVars{main_~d~0=v_main_~d~0_1345, main_~e~0=v_main_~e~0_4554} AuxVars[] AssignedVars[] [2021-05-03 00:32:40,945 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:40,946 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:40,948 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:40,968 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:40,986 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_4556 5) InVars {main_~e~0=v_main_~e~0_4556} OutVars{main_~e~0=v_main_~e~0_4556} AuxVars[] AssignedVars[] [2021-05-03 00:32:40,987 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:40,987 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:40,991 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:41,002 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:41,014 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_4554) (< v_main_~d~0_1345 5)) InVars {main_~d~0=v_main_~d~0_1345, main_~e~0=v_main_~e~0_4554} OutVars{main_~d~0=v_main_~d~0_1345, main_~e~0=v_main_~e~0_4554} AuxVars[] AssignedVars[] [2021-05-03 00:32:41,015 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:41,016 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:41,018 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:41,038 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:41,056 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_4556 5) InVars {main_~e~0=v_main_~e~0_4556} OutVars{main_~e~0=v_main_~e~0_4556} AuxVars[] AssignedVars[] [2021-05-03 00:32:41,057 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:41,057 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:41,061 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:41,073 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:41,084 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:41,085 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:41,102 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:32:41,116 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_4554) (< v_main_~d~0_1345 5)) InVars {main_~d~0=v_main_~d~0_1345, main_~e~0=v_main_~e~0_4554} OutVars{main_~d~0=v_main_~d~0_1345, main_~e~0=v_main_~e~0_4554} AuxVars[] AssignedVars[] [2021-05-03 00:32:41,117 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:41,118 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:41,120 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:41,140 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:41,157 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_4556 5) InVars {main_~e~0=v_main_~e~0_4556} OutVars{main_~e~0=v_main_~e~0_4556} AuxVars[] AssignedVars[] [2021-05-03 00:32:41,158 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:41,159 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:41,163 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:41,174 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:41,190 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:41,191 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:41,212 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:32:41,224 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:32:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:41,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:32:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:41,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:32:42,635 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:32:42,635 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [324387011] [2021-05-03 00:32:42,635 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [324387011] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:32:42,635 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:32:42,635 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2021-05-03 00:32:42,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851354978] [2021-05-03 00:32:42,635 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-05-03 00:32:42,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:32:42,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-05-03 00:32:42,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=2027, Unknown=0, NotChecked=0, Total=2256 [2021-05-03 00:32:42,636 INFO L87 Difference]: Start difference. First operand 105 states and 109 transitions. Second operand has 48 states, 48 states have (on average 2.1041666666666665) internal successors, (101), 47 states have internal predecessors, (101), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:45,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:32:45,597 INFO L93 Difference]: Finished difference Result 142 states and 160 transitions. [2021-05-03 00:32:45,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-05-03 00:32:45,597 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 2.1041666666666665) internal successors, (101), 47 states have internal predecessors, (101), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2021-05-03 00:32:45,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:32:45,598 INFO L225 Difference]: With dead ends: 142 [2021-05-03 00:32:45,598 INFO L226 Difference]: Without dead ends: 129 [2021-05-03 00:32:45,599 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 50 SyntacticMatches, 9 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1485 ImplicationChecksByTransitivity, 3083.2ms TimeCoverageRelationStatistics Valid=681, Invalid=7875, Unknown=0, NotChecked=0, Total=8556 [2021-05-03 00:32:45,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-05-03 00:32:45,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 107. [2021-05-03 00:32:45,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 103 states have (on average 1.0485436893203883) internal successors, (108), 103 states have internal predecessors, (108), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:45,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 111 transitions. [2021-05-03 00:32:45,657 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 111 transitions. Word has length 104 [2021-05-03 00:32:45,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:32:45,657 INFO L480 AbstractCegarLoop]: Abstraction has 107 states and 111 transitions. [2021-05-03 00:32:45,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 48 states, 48 states have (on average 2.1041666666666665) internal successors, (101), 47 states have internal predecessors, (101), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:45,657 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2021-05-03 00:32:45,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-05-03 00:32:45,657 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:32:45,657 INFO L523 BasicCegarLoop]: trace histogram [35, 35, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:32:45,658 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-05-03 00:32:45,658 INFO L428 AbstractCegarLoop]: === Iteration 46 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:32:45,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:32:45,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1831857936, now seen corresponding path program 40 times [2021-05-03 00:32:45,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:32:45,658 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [246754835] [2021-05-03 00:32:45,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:32:45,787 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_4757) (< v_main_~d~0_1392 5)) InVars {main_~d~0=v_main_~d~0_1392, main_~e~0=v_main_~e~0_4757} OutVars{main_~d~0=v_main_~d~0_1392, main_~e~0=v_main_~e~0_4757} AuxVars[] AssignedVars[] [2021-05-03 00:32:45,793 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:45,794 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:45,797 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:45,822 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:45,842 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_4759 5) InVars {main_~e~0=v_main_~e~0_4759} OutVars{main_~e~0=v_main_~e~0_4759} AuxVars[] AssignedVars[] [2021-05-03 00:32:45,843 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:45,844 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:45,848 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:45,861 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:45,875 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_4757) (< v_main_~d~0_1392 5)) InVars {main_~d~0=v_main_~d~0_1392, main_~e~0=v_main_~e~0_4757} OutVars{main_~d~0=v_main_~d~0_1392, main_~e~0=v_main_~e~0_4757} AuxVars[] AssignedVars[] [2021-05-03 00:32:45,882 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:45,900 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:45,903 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:45,914 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:45,934 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_4759 5) InVars {main_~e~0=v_main_~e~0_4759} OutVars{main_~e~0=v_main_~e~0_4759} AuxVars[] AssignedVars[] [2021-05-03 00:32:45,935 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:45,935 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:45,940 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:45,954 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:45,967 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_4757) (< v_main_~d~0_1392 5)) InVars {main_~d~0=v_main_~d~0_1392, main_~e~0=v_main_~e~0_4757} OutVars{main_~d~0=v_main_~d~0_1392, main_~e~0=v_main_~e~0_4757} AuxVars[] AssignedVars[] [2021-05-03 00:32:45,969 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:45,969 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:45,972 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:46,001 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:46,020 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_4759 5) InVars {main_~e~0=v_main_~e~0_4759} OutVars{main_~e~0=v_main_~e~0_4759} AuxVars[] AssignedVars[] [2021-05-03 00:32:46,021 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:46,022 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:46,027 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:46,041 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:46,053 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:46,053 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:46,072 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:32:46,086 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_4757) (< v_main_~d~0_1392 5)) InVars {main_~d~0=v_main_~d~0_1392, main_~e~0=v_main_~e~0_4757} OutVars{main_~d~0=v_main_~d~0_1392, main_~e~0=v_main_~e~0_4757} AuxVars[] AssignedVars[] [2021-05-03 00:32:46,087 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:46,104 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:46,107 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:46,117 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:46,135 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_4759 5) InVars {main_~e~0=v_main_~e~0_4759} OutVars{main_~e~0=v_main_~e~0_4759} AuxVars[] AssignedVars[] [2021-05-03 00:32:46,136 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:46,143 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:46,150 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:46,157 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:46,195 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:46,196 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:46,222 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:32:46,236 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:32:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:46,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:32:46,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:46,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:32:47,951 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:32:47,952 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [246754835] [2021-05-03 00:32:47,952 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [246754835] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:32:47,952 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:32:47,952 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [] total 49 [2021-05-03 00:32:47,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699944851] [2021-05-03 00:32:47,952 INFO L460 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-05-03 00:32:47,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:32:47,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-05-03 00:32:47,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=2118, Unknown=0, NotChecked=0, Total=2352 [2021-05-03 00:32:47,953 INFO L87 Difference]: Start difference. First operand 107 states and 111 transitions. Second operand has 49 states, 49 states have (on average 2.1020408163265305) internal successors, (103), 48 states have internal predecessors, (103), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:51,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:32:51,462 INFO L93 Difference]: Finished difference Result 146 states and 165 transitions. [2021-05-03 00:32:51,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-05-03 00:32:51,463 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 2.1020408163265305) internal successors, (103), 48 states have internal predecessors, (103), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2021-05-03 00:32:51,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:32:51,463 INFO L225 Difference]: With dead ends: 146 [2021-05-03 00:32:51,463 INFO L226 Difference]: Without dead ends: 133 [2021-05-03 00:32:51,464 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 44 SyntacticMatches, 16 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1578 ImplicationChecksByTransitivity, 3676.2ms TimeCoverageRelationStatistics Valid=696, Invalid=8234, Unknown=0, NotChecked=0, Total=8930 [2021-05-03 00:32:51,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-05-03 00:32:51,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 111. [2021-05-03 00:32:51,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 107 states have (on average 1.0467289719626167) internal successors, (112), 107 states have internal predecessors, (112), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:51,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 115 transitions. [2021-05-03 00:32:51,523 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 115 transitions. Word has length 106 [2021-05-03 00:32:51,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:32:51,523 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 115 transitions. [2021-05-03 00:32:51,523 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 49 states, 49 states have (on average 2.1020408163265305) internal successors, (103), 48 states have internal predecessors, (103), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:51,523 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 115 transitions. [2021-05-03 00:32:51,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-05-03 00:32:51,524 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:32:51,524 INFO L523 BasicCegarLoop]: trace histogram [36, 36, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:32:51,524 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-05-03 00:32:51,524 INFO L428 AbstractCegarLoop]: === Iteration 47 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:32:51,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:32:51,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1454982990, now seen corresponding path program 41 times [2021-05-03 00:32:51,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:32:51,524 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1900067688] [2021-05-03 00:32:51,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:32:52,183 WARN L205 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 153 [2021-05-03 00:32:52,308 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1437 5) (<= 5 v_main_~e~0_4958)) InVars {main_~d~0=v_main_~d~0_1437, main_~e~0=v_main_~e~0_4958} OutVars{main_~d~0=v_main_~d~0_1437, main_~e~0=v_main_~e~0_4958} AuxVars[] AssignedVars[] [2021-05-03 00:32:52,315 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:52,332 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:52,335 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:52,346 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:52,365 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_4960 5) InVars {main_~e~0=v_main_~e~0_4960} OutVars{main_~e~0=v_main_~e~0_4960} AuxVars[] AssignedVars[] [2021-05-03 00:32:52,366 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:52,367 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:52,372 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:52,387 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:52,401 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1437 5) (<= 5 v_main_~e~0_4958)) InVars {main_~d~0=v_main_~d~0_1437, main_~e~0=v_main_~e~0_4958} OutVars{main_~d~0=v_main_~d~0_1437, main_~e~0=v_main_~e~0_4958} AuxVars[] AssignedVars[] [2021-05-03 00:32:52,403 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:52,425 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:52,428 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:52,439 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:52,458 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_4960 5) InVars {main_~e~0=v_main_~e~0_4960} OutVars{main_~e~0=v_main_~e~0_4960} AuxVars[] AssignedVars[] [2021-05-03 00:32:52,459 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:52,460 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:52,467 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:52,482 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:52,497 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1437 5) (<= 5 v_main_~e~0_4958)) InVars {main_~d~0=v_main_~d~0_1437, main_~e~0=v_main_~e~0_4958} OutVars{main_~d~0=v_main_~d~0_1437, main_~e~0=v_main_~e~0_4958} AuxVars[] AssignedVars[] [2021-05-03 00:32:52,499 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:52,508 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:52,511 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:52,540 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:52,574 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_4960 5) InVars {main_~e~0=v_main_~e~0_4960} OutVars{main_~e~0=v_main_~e~0_4960} AuxVars[] AssignedVars[] [2021-05-03 00:32:52,575 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:52,576 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:52,582 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:52,597 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:52,610 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:52,611 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:52,632 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:32:52,665 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1437 5) (<= 5 v_main_~e~0_4958)) InVars {main_~d~0=v_main_~d~0_1437, main_~e~0=v_main_~e~0_4958} OutVars{main_~d~0=v_main_~d~0_1437, main_~e~0=v_main_~e~0_4958} AuxVars[] AssignedVars[] [2021-05-03 00:32:52,667 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:52,685 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:52,688 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:52,699 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:52,719 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_4960 5) InVars {main_~e~0=v_main_~e~0_4960} OutVars{main_~e~0=v_main_~e~0_4960} AuxVars[] AssignedVars[] [2021-05-03 00:32:52,720 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:52,732 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:52,738 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:52,745 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:52,770 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:52,770 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:52,796 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:32:52,810 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:32:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:52,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:32:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:52,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:32:54,314 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:32:54,315 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1900067688] [2021-05-03 00:32:54,315 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1900067688] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:32:54,315 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:32:54,315 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2021-05-03 00:32:54,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289558121] [2021-05-03 00:32:54,327 INFO L460 AbstractCegarLoop]: Interpolant automaton has 51 states [2021-05-03 00:32:54,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:32:54,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-05-03 00:32:54,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=2307, Unknown=0, NotChecked=0, Total=2550 [2021-05-03 00:32:54,337 INFO L87 Difference]: Start difference. First operand 111 states and 115 transitions. Second operand has 51 states, 51 states have (on average 2.0588235294117645) internal successors, (105), 50 states have internal predecessors, (105), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:57,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:32:57,843 INFO L93 Difference]: Finished difference Result 144 states and 161 transitions. [2021-05-03 00:32:57,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-05-03 00:32:57,844 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 2.0588235294117645) internal successors, (105), 50 states have internal predecessors, (105), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2021-05-03 00:32:57,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:32:57,844 INFO L225 Difference]: With dead ends: 144 [2021-05-03 00:32:57,844 INFO L226 Difference]: Without dead ends: 131 [2021-05-03 00:32:57,845 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 46 SyntacticMatches, 14 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1757 ImplicationChecksByTransitivity, 3462.7ms TimeCoverageRelationStatistics Valid=723, Invalid=8979, Unknown=0, NotChecked=0, Total=9702 [2021-05-03 00:32:57,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-05-03 00:32:57,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 115. [2021-05-03 00:32:57,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 111 states have (on average 1.045045045045045) internal successors, (116), 111 states have internal predecessors, (116), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:57,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 119 transitions. [2021-05-03 00:32:57,920 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 119 transitions. Word has length 108 [2021-05-03 00:32:57,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:32:57,920 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 119 transitions. [2021-05-03 00:32:57,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 51 states, 51 states have (on average 2.0588235294117645) internal successors, (105), 50 states have internal predecessors, (105), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:32:57,920 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 119 transitions. [2021-05-03 00:32:57,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-05-03 00:32:57,920 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:32:57,920 INFO L523 BasicCegarLoop]: trace histogram [36, 36, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:32:57,920 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-05-03 00:32:57,921 INFO L428 AbstractCegarLoop]: === Iteration 48 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:32:57,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:32:57,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1616358397, now seen corresponding path program 42 times [2021-05-03 00:32:57,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:32:57,921 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1051878447] [2021-05-03 00:32:57,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:32:58,529 WARN L205 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 156 [2021-05-03 00:32:58,649 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1486 5) (<= 5 v_main_~e~0_5162)) InVars {main_~d~0=v_main_~d~0_1486, main_~e~0=v_main_~e~0_5162} OutVars{main_~d~0=v_main_~d~0_1486, main_~e~0=v_main_~e~0_5162} AuxVars[] AssignedVars[] [2021-05-03 00:32:58,650 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:58,651 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:58,653 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:58,673 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:58,690 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_5164 5) InVars {main_~e~0=v_main_~e~0_5164} OutVars{main_~e~0=v_main_~e~0_5164} AuxVars[] AssignedVars[] [2021-05-03 00:32:58,691 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:58,698 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:58,701 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:58,707 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:58,719 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1486 5) (<= 5 v_main_~e~0_5162)) InVars {main_~d~0=v_main_~d~0_1486, main_~e~0=v_main_~e~0_5162} OutVars{main_~d~0=v_main_~d~0_1486, main_~e~0=v_main_~e~0_5162} AuxVars[] AssignedVars[] [2021-05-03 00:32:58,720 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:58,733 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:58,735 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:58,744 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:58,761 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_5164 5) InVars {main_~e~0=v_main_~e~0_5164} OutVars{main_~e~0=v_main_~e~0_5164} AuxVars[] AssignedVars[] [2021-05-03 00:32:58,762 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:58,762 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:58,766 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:58,778 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:58,790 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1486 5) (<= 5 v_main_~e~0_5162)) InVars {main_~d~0=v_main_~d~0_1486, main_~e~0=v_main_~e~0_5162} OutVars{main_~d~0=v_main_~d~0_1486, main_~e~0=v_main_~e~0_5162} AuxVars[] AssignedVars[] [2021-05-03 00:32:58,791 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:58,804 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:58,807 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:58,815 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:58,832 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_5164 5) InVars {main_~e~0=v_main_~e~0_5164} OutVars{main_~e~0=v_main_~e~0_5164} AuxVars[] AssignedVars[] [2021-05-03 00:32:58,833 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:58,834 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:58,838 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:58,850 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:58,862 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:58,862 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:58,882 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:32:58,896 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1486 5) (<= 5 v_main_~e~0_5162)) InVars {main_~d~0=v_main_~d~0_1486, main_~e~0=v_main_~e~0_5162} OutVars{main_~d~0=v_main_~d~0_1486, main_~e~0=v_main_~e~0_5162} AuxVars[] AssignedVars[] [2021-05-03 00:32:58,897 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:32:58,898 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:58,900 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:32:58,920 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:32:58,938 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_5164 5) InVars {main_~e~0=v_main_~e~0_5164} OutVars{main_~e~0=v_main_~e~0_5164} AuxVars[] AssignedVars[] [2021-05-03 00:32:58,939 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:32:58,945 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:58,949 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:32:58,955 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:32:58,983 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:32:58,984 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:32:59,005 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:32:59,018 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:32:59,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:59,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:32:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:32:59,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:33:00,808 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:33:00,808 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1051878447] [2021-05-03 00:33:00,808 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1051878447] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:33:00,808 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:33:00,808 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2021-05-03 00:33:00,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708603109] [2021-05-03 00:33:00,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states [2021-05-03 00:33:00,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:33:00,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-05-03 00:33:00,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=2405, Unknown=0, NotChecked=0, Total=2652 [2021-05-03 00:33:00,809 INFO L87 Difference]: Start difference. First operand 115 states and 119 transitions. Second operand has 52 states, 52 states have (on average 2.076923076923077) internal successors, (108), 51 states have internal predecessors, (108), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:04,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:33:04,425 INFO L93 Difference]: Finished difference Result 145 states and 161 transitions. [2021-05-03 00:33:04,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-05-03 00:33:04,426 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.076923076923077) internal successors, (108), 51 states have internal predecessors, (108), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2021-05-03 00:33:04,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:33:04,426 INFO L225 Difference]: With dead ends: 145 [2021-05-03 00:33:04,426 INFO L226 Difference]: Without dead ends: 132 [2021-05-03 00:33:04,427 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 42 SyntacticMatches, 20 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1920 ImplicationChecksByTransitivity, 3864.9ms TimeCoverageRelationStatistics Valid=735, Invalid=9365, Unknown=0, NotChecked=0, Total=10100 [2021-05-03 00:33:04,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-05-03 00:33:04,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 116. [2021-05-03 00:33:04,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 112 states have (on average 1.0446428571428572) internal successors, (117), 112 states have internal predecessors, (117), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:04,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 120 transitions. [2021-05-03 00:33:04,491 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 120 transitions. Word has length 111 [2021-05-03 00:33:04,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:33:04,491 INFO L480 AbstractCegarLoop]: Abstraction has 116 states and 120 transitions. [2021-05-03 00:33:04,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 52 states, 52 states have (on average 2.076923076923077) internal successors, (108), 51 states have internal predecessors, (108), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:04,491 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 120 transitions. [2021-05-03 00:33:04,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-03 00:33:04,492 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:33:04,492 INFO L523 BasicCegarLoop]: trace histogram [36, 36, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:33:04,492 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-05-03 00:33:04,492 INFO L428 AbstractCegarLoop]: === Iteration 49 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:33:04,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:33:04,492 INFO L82 PathProgramCache]: Analyzing trace with hash 354070922, now seen corresponding path program 43 times [2021-05-03 00:33:04,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:33:04,492 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [612956204] [2021-05-03 00:33:04,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:33:05,086 WARN L205 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 155 [2021-05-03 00:33:05,235 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_5370) (< v_main_~d~0_1544 5)) InVars {main_~d~0=v_main_~d~0_1544, main_~e~0=v_main_~e~0_5370} OutVars{main_~d~0=v_main_~d~0_1544, main_~e~0=v_main_~e~0_5370} AuxVars[] AssignedVars[] [2021-05-03 00:33:05,236 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:05,249 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:05,251 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:05,260 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:05,278 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_5372 5) InVars {main_~e~0=v_main_~e~0_5372} OutVars{main_~e~0=v_main_~e~0_5372} AuxVars[] AssignedVars[] [2021-05-03 00:33:05,279 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:05,279 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:05,284 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:05,296 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:05,307 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-03 00:33:05,310 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_516 5) (<= 6 v_main_~d~0_1535)) InVars {main_~c~0=v_main_~c~0_516, main_~d~0=v_main_~d~0_1535} OutVars{main_~c~0=v_main_~c~0_516, main_~d~0=v_main_~d~0_1535} AuxVars[] AssignedVars[] [2021-05-03 00:33:05,311 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.6 percent of original size [2021-05-03 00:33:05,311 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:05,313 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:05,331 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.6 percent of original size 50 [2021-05-03 00:33:05,347 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:33:05,347 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:05,353 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-03 00:33:05,361 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_5370) (< v_main_~d~0_1544 5)) InVars {main_~d~0=v_main_~d~0_1544, main_~e~0=v_main_~e~0_5370} OutVars{main_~d~0=v_main_~d~0_1544, main_~e~0=v_main_~e~0_5370} AuxVars[] AssignedVars[] [2021-05-03 00:33:05,361 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:05,375 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:05,377 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:05,386 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:05,404 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_5372 5) InVars {main_~e~0=v_main_~e~0_5372} OutVars{main_~e~0=v_main_~e~0_5372} AuxVars[] AssignedVars[] [2021-05-03 00:33:05,404 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:05,405 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:05,409 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:05,421 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:05,433 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_5370) (< v_main_~d~0_1544 5)) InVars {main_~d~0=v_main_~d~0_1544, main_~e~0=v_main_~e~0_5370} OutVars{main_~d~0=v_main_~d~0_1544, main_~e~0=v_main_~e~0_5370} AuxVars[] AssignedVars[] [2021-05-03 00:33:05,434 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:05,449 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:05,451 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:05,460 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:05,477 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_5372 5) InVars {main_~e~0=v_main_~e~0_5372} OutVars{main_~e~0=v_main_~e~0_5372} AuxVars[] AssignedVars[] [2021-05-03 00:33:05,478 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:05,479 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:05,483 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:05,495 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:05,506 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:33:05,507 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:05,527 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:33:05,542 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_5370) (< v_main_~d~0_1544 5)) InVars {main_~d~0=v_main_~d~0_1544, main_~e~0=v_main_~e~0_5370} OutVars{main_~d~0=v_main_~d~0_1544, main_~e~0=v_main_~e~0_5370} AuxVars[] AssignedVars[] [2021-05-03 00:33:05,543 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:05,543 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:05,546 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:05,567 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:05,586 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_5372 5) InVars {main_~e~0=v_main_~e~0_5372} OutVars{main_~e~0=v_main_~e~0_5372} AuxVars[] AssignedVars[] [2021-05-03 00:33:05,586 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:05,593 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:05,597 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:05,603 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:05,621 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:33:05,622 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:05,643 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:33:05,656 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:33:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:33:05,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:33:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:33:05,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:33:07,138 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:33:07,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [612956204] [2021-05-03 00:33:07,138 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [612956204] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:33:07,138 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:33:07,138 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [] total 53 [2021-05-03 00:33:07,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417287604] [2021-05-03 00:33:07,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-05-03 00:33:07,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:33:07,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-05-03 00:33:07,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=251, Invalid=2505, Unknown=0, NotChecked=0, Total=2756 [2021-05-03 00:33:07,139 INFO L87 Difference]: Start difference. First operand 116 states and 120 transitions. Second operand has 53 states, 53 states have (on average 2.0943396226415096) internal successors, (111), 52 states have internal predecessors, (111), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:10,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:33:10,823 INFO L93 Difference]: Finished difference Result 147 states and 163 transitions. [2021-05-03 00:33:10,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-05-03 00:33:10,823 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 2.0943396226415096) internal successors, (111), 52 states have internal predecessors, (111), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2021-05-03 00:33:10,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:33:10,837 INFO L225 Difference]: With dead ends: 147 [2021-05-03 00:33:10,837 INFO L226 Difference]: Without dead ends: 134 [2021-05-03 00:33:10,851 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 45 SyntacticMatches, 19 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2056 ImplicationChecksByTransitivity, 3460.7ms TimeCoverageRelationStatistics Valid=747, Invalid=9759, Unknown=0, NotChecked=0, Total=10506 [2021-05-03 00:33:10,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-05-03 00:33:10,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 117. [2021-05-03 00:33:10,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 113 states have (on average 1.0442477876106195) internal successors, (118), 113 states have internal predecessors, (118), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:10,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 121 transitions. [2021-05-03 00:33:10,990 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 121 transitions. Word has length 114 [2021-05-03 00:33:10,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:33:10,990 INFO L480 AbstractCegarLoop]: Abstraction has 117 states and 121 transitions. [2021-05-03 00:33:10,991 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 53 states, 53 states have (on average 2.0943396226415096) internal successors, (111), 52 states have internal predecessors, (111), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:10,991 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 121 transitions. [2021-05-03 00:33:10,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-05-03 00:33:10,991 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:33:10,991 INFO L523 BasicCegarLoop]: trace histogram [37, 37, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:33:10,991 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-05-03 00:33:10,991 INFO L428 AbstractCegarLoop]: === Iteration 50 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:33:10,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:33:10,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1893607784, now seen corresponding path program 44 times [2021-05-03 00:33:10,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:33:10,992 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1346638192] [2021-05-03 00:33:10,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:33:11,633 WARN L205 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 157 [2021-05-03 00:33:11,823 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_5580 6) InVars {main_~e~0=v_main_~e~0_5580} OutVars{main_~e~0=v_main_~e~0_5580} AuxVars[] AssignedVars[] [2021-05-03 00:33:11,824 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:11,830 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:11,834 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:11,840 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:11,851 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_1607) (< v_main_~c~0_540 5) (<= 6 v_main_~e~0_5582)) InVars {main_~c~0=v_main_~c~0_540, main_~d~0=v_main_~d~0_1607, main_~e~0=v_main_~e~0_5582} OutVars{main_~c~0=v_main_~c~0_540, main_~d~0=v_main_~d~0_1607, main_~e~0=v_main_~e~0_5582} AuxVars[] AssignedVars[] [2021-05-03 00:33:11,852 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 92.9 percent of original size [2021-05-03 00:33:11,853 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:11,855 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:11,883 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 92.9 percent of original size 65 [2021-05-03 00:33:11,907 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 6 v_main_~e~0_5584) (< v_main_~d~0_1609 5)) InVars {main_~d~0=v_main_~d~0_1609, main_~e~0=v_main_~e~0_5584} OutVars{main_~d~0=v_main_~d~0_1609, main_~e~0=v_main_~e~0_5584} AuxVars[] AssignedVars[] [2021-05-03 00:33:11,908 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.6 percent of original size [2021-05-03 00:33:11,920 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:11,922 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:11,930 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.6 percent of original size 50 [2021-05-03 00:33:11,950 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_5587) (<= 5 v_main_~d~0_1612) (< v_main_~c~0_542 5)) InVars {main_~c~0=v_main_~c~0_542, main_~d~0=v_main_~d~0_1612, main_~e~0=v_main_~e~0_5587} OutVars{main_~c~0=v_main_~c~0_542, main_~d~0=v_main_~d~0_1612, main_~e~0=v_main_~e~0_5587} AuxVars[] AssignedVars[] [2021-05-03 00:33:11,951 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:33:11,974 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:11,976 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:11,990 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:33:12,015 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1614 5) (<= 5 v_main_~e~0_5590)) InVars {main_~d~0=v_main_~d~0_1614, main_~e~0=v_main_~e~0_5590} OutVars{main_~d~0=v_main_~d~0_1614, main_~e~0=v_main_~e~0_5590} AuxVars[] AssignedVars[] [2021-05-03 00:33:12,016 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:12,030 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:12,033 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:12,042 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:12,060 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_5592 5) InVars {main_~e~0=v_main_~e~0_5592} OutVars{main_~e~0=v_main_~e~0_5592} AuxVars[] AssignedVars[] [2021-05-03 00:33:12,061 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:12,067 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:12,072 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:12,078 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:12,090 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:33:12,090 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:12,121 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:33:12,137 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_5587) (<= 5 v_main_~d~0_1612) (< v_main_~c~0_542 5)) InVars {main_~c~0=v_main_~c~0_542, main_~d~0=v_main_~d~0_1612, main_~e~0=v_main_~e~0_5587} OutVars{main_~c~0=v_main_~c~0_542, main_~d~0=v_main_~d~0_1612, main_~e~0=v_main_~e~0_5587} AuxVars[] AssignedVars[] [2021-05-03 00:33:12,139 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:33:12,139 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:12,142 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:12,178 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:33:12,207 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1614 5) (<= 5 v_main_~e~0_5590)) InVars {main_~d~0=v_main_~d~0_1614, main_~e~0=v_main_~e~0_5590} OutVars{main_~d~0=v_main_~d~0_1614, main_~e~0=v_main_~e~0_5590} AuxVars[] AssignedVars[] [2021-05-03 00:33:12,208 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:12,224 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:12,227 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:12,236 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:12,256 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_5592 5) InVars {main_~e~0=v_main_~e~0_5592} OutVars{main_~e~0=v_main_~e~0_5592} AuxVars[] AssignedVars[] [2021-05-03 00:33:12,257 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:12,258 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:12,262 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:12,274 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:12,293 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:33:12,294 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:12,316 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:33:12,329 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:33:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:33:12,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:33:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:33:12,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:33:14,230 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:33:14,230 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1346638192] [2021-05-03 00:33:14,230 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1346638192] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:33:14,230 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:33:14,230 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [] total 54 [2021-05-03 00:33:14,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792400519] [2021-05-03 00:33:14,231 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states [2021-05-03 00:33:14,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:33:14,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-05-03 00:33:14,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=2607, Unknown=0, NotChecked=0, Total=2862 [2021-05-03 00:33:14,231 INFO L87 Difference]: Start difference. First operand 117 states and 121 transitions. Second operand has 54 states, 54 states have (on average 2.0925925925925926) internal successors, (113), 53 states have internal predecessors, (113), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:18,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:33:18,056 INFO L93 Difference]: Finished difference Result 149 states and 165 transitions. [2021-05-03 00:33:18,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-05-03 00:33:18,057 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 2.0925925925925926) internal successors, (113), 53 states have internal predecessors, (113), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 116 [2021-05-03 00:33:18,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:33:18,058 INFO L225 Difference]: With dead ends: 149 [2021-05-03 00:33:18,058 INFO L226 Difference]: Without dead ends: 136 [2021-05-03 00:33:18,059 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 44 SyntacticMatches, 21 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2207 ImplicationChecksByTransitivity, 4035.9ms TimeCoverageRelationStatistics Valid=759, Invalid=10161, Unknown=0, NotChecked=0, Total=10920 [2021-05-03 00:33:18,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-05-03 00:33:18,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 119. [2021-05-03 00:33:18,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 115 states have (on average 1.0434782608695652) internal successors, (120), 115 states have internal predecessors, (120), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:18,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 123 transitions. [2021-05-03 00:33:18,127 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 123 transitions. Word has length 116 [2021-05-03 00:33:18,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:33:18,127 INFO L480 AbstractCegarLoop]: Abstraction has 119 states and 123 transitions. [2021-05-03 00:33:18,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 54 states, 54 states have (on average 2.0925925925925926) internal successors, (113), 53 states have internal predecessors, (113), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:18,128 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 123 transitions. [2021-05-03 00:33:18,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-05-03 00:33:18,128 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:33:18,128 INFO L523 BasicCegarLoop]: trace histogram [38, 38, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:33:18,128 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-05-03 00:33:18,128 INFO L428 AbstractCegarLoop]: === Iteration 51 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:33:18,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:33:18,129 INFO L82 PathProgramCache]: Analyzing trace with hash -375184954, now seen corresponding path program 45 times [2021-05-03 00:33:18,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:33:18,129 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1002371] [2021-05-03 00:33:18,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:33:18,762 WARN L205 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 155 [2021-05-03 00:33:18,950 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_5810) (<= 5 v_main_~d~0_1679) (< v_main_~c~0_570 5)) InVars {main_~c~0=v_main_~c~0_570, main_~d~0=v_main_~d~0_1679, main_~e~0=v_main_~e~0_5810} OutVars{main_~c~0=v_main_~c~0_570, main_~d~0=v_main_~d~0_1679, main_~e~0=v_main_~e~0_5810} AuxVars[] AssignedVars[] [2021-05-03 00:33:18,951 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:33:18,974 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:18,977 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:18,991 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:33:19,017 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1681 5) (<= 5 v_main_~e~0_5813)) InVars {main_~d~0=v_main_~d~0_1681, main_~e~0=v_main_~e~0_5813} OutVars{main_~d~0=v_main_~d~0_1681, main_~e~0=v_main_~e~0_5813} AuxVars[] AssignedVars[] [2021-05-03 00:33:19,019 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:19,019 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:19,021 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:19,042 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:19,060 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_5815 5) InVars {main_~e~0=v_main_~e~0_5815} OutVars{main_~e~0=v_main_~e~0_5815} AuxVars[] AssignedVars[] [2021-05-03 00:33:19,061 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:19,068 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:19,072 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:19,078 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:19,094 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_5810) (<= 5 v_main_~d~0_1679) (< v_main_~c~0_570 5)) InVars {main_~c~0=v_main_~c~0_570, main_~d~0=v_main_~d~0_1679, main_~e~0=v_main_~e~0_5810} OutVars{main_~c~0=v_main_~c~0_570, main_~d~0=v_main_~d~0_1679, main_~e~0=v_main_~e~0_5810} AuxVars[] AssignedVars[] [2021-05-03 00:33:19,095 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:33:19,119 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:19,122 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:19,137 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:33:19,164 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1681 5) (<= 5 v_main_~e~0_5813)) InVars {main_~d~0=v_main_~d~0_1681, main_~e~0=v_main_~e~0_5813} OutVars{main_~d~0=v_main_~d~0_1681, main_~e~0=v_main_~e~0_5813} AuxVars[] AssignedVars[] [2021-05-03 00:33:19,165 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:19,179 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:19,182 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:19,190 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:19,209 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_5815 5) InVars {main_~e~0=v_main_~e~0_5815} OutVars{main_~e~0=v_main_~e~0_5815} AuxVars[] AssignedVars[] [2021-05-03 00:33:19,210 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:19,210 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:19,214 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:19,227 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:19,240 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:33:19,241 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:19,259 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:33:19,274 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_5810) (<= 5 v_main_~d~0_1679) (< v_main_~c~0_570 5)) InVars {main_~c~0=v_main_~c~0_570, main_~d~0=v_main_~d~0_1679, main_~e~0=v_main_~e~0_5810} OutVars{main_~c~0=v_main_~c~0_570, main_~d~0=v_main_~d~0_1679, main_~e~0=v_main_~e~0_5810} AuxVars[] AssignedVars[] [2021-05-03 00:33:19,275 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:33:19,276 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:19,279 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:19,318 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:33:19,348 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1681 5) (<= 5 v_main_~e~0_5813)) InVars {main_~d~0=v_main_~d~0_1681, main_~e~0=v_main_~e~0_5813} OutVars{main_~d~0=v_main_~d~0_1681, main_~e~0=v_main_~e~0_5813} AuxVars[] AssignedVars[] [2021-05-03 00:33:19,349 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:19,349 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:19,352 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:19,374 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:19,395 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_5815 5) InVars {main_~e~0=v_main_~e~0_5815} OutVars{main_~e~0=v_main_~e~0_5815} AuxVars[] AssignedVars[] [2021-05-03 00:33:19,396 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:19,397 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:19,401 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:19,414 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:19,434 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:33:19,435 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:19,461 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:33:19,475 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:33:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:33:19,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:33:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:33:19,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:33:21,412 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:33:21,413 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1002371] [2021-05-03 00:33:21,413 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1002371] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:33:21,413 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:33:21,413 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [] total 55 [2021-05-03 00:33:21,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103399950] [2021-05-03 00:33:21,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states [2021-05-03 00:33:21,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:33:21,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-05-03 00:33:21,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=2711, Unknown=0, NotChecked=0, Total=2970 [2021-05-03 00:33:21,414 INFO L87 Difference]: Start difference. First operand 119 states and 123 transitions. Second operand has 55 states, 55 states have (on average 2.090909090909091) internal successors, (115), 54 states have internal predecessors, (115), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:25,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:33:25,607 INFO L93 Difference]: Finished difference Result 151 states and 167 transitions. [2021-05-03 00:33:25,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-05-03 00:33:25,608 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 2.090909090909091) internal successors, (115), 54 states have internal predecessors, (115), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2021-05-03 00:33:25,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:33:25,608 INFO L225 Difference]: With dead ends: 151 [2021-05-03 00:33:25,608 INFO L226 Difference]: Without dead ends: 138 [2021-05-03 00:33:25,609 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 49 SyntacticMatches, 17 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2331 ImplicationChecksByTransitivity, 4325.4ms TimeCoverageRelationStatistics Valid=771, Invalid=10571, Unknown=0, NotChecked=0, Total=11342 [2021-05-03 00:33:25,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-05-03 00:33:25,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 121. [2021-05-03 00:33:25,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 117 states have (on average 1.0427350427350428) internal successors, (122), 117 states have internal predecessors, (122), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:25,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 125 transitions. [2021-05-03 00:33:25,679 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 125 transitions. Word has length 118 [2021-05-03 00:33:25,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:33:25,680 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 125 transitions. [2021-05-03 00:33:25,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 55 states, 55 states have (on average 2.090909090909091) internal successors, (115), 54 states have internal predecessors, (115), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:25,680 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 125 transitions. [2021-05-03 00:33:25,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-03 00:33:25,680 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:33:25,680 INFO L523 BasicCegarLoop]: trace histogram [39, 39, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:33:25,680 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-05-03 00:33:25,680 INFO L428 AbstractCegarLoop]: === Iteration 52 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:33:25,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:33:25,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1158380196, now seen corresponding path program 46 times [2021-05-03 00:33:25,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:33:25,681 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168315972] [2021-05-03 00:33:25,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:33:26,328 WARN L205 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 154 [2021-05-03 00:33:26,519 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_6038) (< v_main_~c~0_598 5) (<= 5 v_main_~d~0_1746)) InVars {main_~c~0=v_main_~c~0_598, main_~d~0=v_main_~d~0_1746, main_~e~0=v_main_~e~0_6038} OutVars{main_~c~0=v_main_~c~0_598, main_~d~0=v_main_~d~0_1746, main_~e~0=v_main_~e~0_6038} AuxVars[] AssignedVars[] [2021-05-03 00:33:26,520 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:33:26,543 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:26,546 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:26,560 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:33:26,586 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1748 5) (<= 5 v_main_~e~0_6041)) InVars {main_~d~0=v_main_~d~0_1748, main_~e~0=v_main_~e~0_6041} OutVars{main_~d~0=v_main_~d~0_1748, main_~e~0=v_main_~e~0_6041} AuxVars[] AssignedVars[] [2021-05-03 00:33:26,587 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:26,588 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:26,590 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:26,611 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:26,630 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_6043 5) InVars {main_~e~0=v_main_~e~0_6043} OutVars{main_~e~0=v_main_~e~0_6043} AuxVars[] AssignedVars[] [2021-05-03 00:33:26,630 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:26,637 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:26,642 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:26,648 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:26,662 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_6038) (< v_main_~c~0_598 5) (<= 5 v_main_~d~0_1746)) InVars {main_~c~0=v_main_~c~0_598, main_~d~0=v_main_~d~0_1746, main_~e~0=v_main_~e~0_6038} OutVars{main_~c~0=v_main_~c~0_598, main_~d~0=v_main_~d~0_1746, main_~e~0=v_main_~e~0_6038} AuxVars[] AssignedVars[] [2021-05-03 00:33:26,663 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:33:26,664 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:26,667 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:26,702 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:33:26,728 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1748 5) (<= 5 v_main_~e~0_6041)) InVars {main_~d~0=v_main_~d~0_1748, main_~e~0=v_main_~e~0_6041} OutVars{main_~d~0=v_main_~d~0_1748, main_~e~0=v_main_~e~0_6041} AuxVars[] AssignedVars[] [2021-05-03 00:33:26,729 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:26,744 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:26,747 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:26,756 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:26,775 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_6043 5) InVars {main_~e~0=v_main_~e~0_6043} OutVars{main_~e~0=v_main_~e~0_6043} AuxVars[] AssignedVars[] [2021-05-03 00:33:26,776 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:26,776 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:26,781 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:26,794 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:26,806 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:33:26,807 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:26,826 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:33:26,844 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_6038) (< v_main_~c~0_598 5) (<= 5 v_main_~d~0_1746)) InVars {main_~c~0=v_main_~c~0_598, main_~d~0=v_main_~d~0_1746, main_~e~0=v_main_~e~0_6038} OutVars{main_~c~0=v_main_~c~0_598, main_~d~0=v_main_~d~0_1746, main_~e~0=v_main_~e~0_6038} AuxVars[] AssignedVars[] [2021-05-03 00:33:26,845 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:33:26,871 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:26,874 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:26,889 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:33:26,919 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1748 5) (<= 5 v_main_~e~0_6041)) InVars {main_~d~0=v_main_~d~0_1748, main_~e~0=v_main_~e~0_6041} OutVars{main_~d~0=v_main_~d~0_1748, main_~e~0=v_main_~e~0_6041} AuxVars[] AssignedVars[] [2021-05-03 00:33:26,920 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:26,921 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:26,923 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:26,945 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:26,966 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_6043 5) InVars {main_~e~0=v_main_~e~0_6043} OutVars{main_~e~0=v_main_~e~0_6043} AuxVars[] AssignedVars[] [2021-05-03 00:33:26,967 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:26,967 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:26,972 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:26,984 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:27,004 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:33:27,004 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:27,026 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:33:27,040 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:33:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:33:27,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:33:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:33:27,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:33:28,966 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:33:28,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [168315972] [2021-05-03 00:33:28,967 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [168315972] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:33:28,967 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:33:28,967 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [] total 56 [2021-05-03 00:33:28,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769280494] [2021-05-03 00:33:28,967 INFO L460 AbstractCegarLoop]: Interpolant automaton has 56 states [2021-05-03 00:33:28,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:33:28,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-05-03 00:33:28,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=2817, Unknown=0, NotChecked=0, Total=3080 [2021-05-03 00:33:28,968 INFO L87 Difference]: Start difference. First operand 121 states and 125 transitions. Second operand has 56 states, 56 states have (on average 2.0892857142857144) internal successors, (117), 55 states have internal predecessors, (117), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:32,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:33:32,835 INFO L93 Difference]: Finished difference Result 153 states and 169 transitions. [2021-05-03 00:33:32,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-05-03 00:33:32,835 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 2.0892857142857144) internal successors, (117), 55 states have internal predecessors, (117), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 120 [2021-05-03 00:33:32,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:33:32,836 INFO L225 Difference]: With dead ends: 153 [2021-05-03 00:33:32,836 INFO L226 Difference]: Without dead ends: 140 [2021-05-03 00:33:32,843 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 50 SyntacticMatches, 17 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2463 ImplicationChecksByTransitivity, 4073.7ms TimeCoverageRelationStatistics Valid=783, Invalid=10989, Unknown=0, NotChecked=0, Total=11772 [2021-05-03 00:33:32,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-05-03 00:33:32,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 123. [2021-05-03 00:33:32,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 119 states have (on average 1.0420168067226891) internal successors, (124), 119 states have internal predecessors, (124), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:32,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 127 transitions. [2021-05-03 00:33:32,921 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 127 transitions. Word has length 120 [2021-05-03 00:33:32,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:33:32,936 INFO L480 AbstractCegarLoop]: Abstraction has 123 states and 127 transitions. [2021-05-03 00:33:32,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 56 states, 56 states have (on average 2.0892857142857144) internal successors, (117), 55 states have internal predecessors, (117), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:32,937 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 127 transitions. [2021-05-03 00:33:32,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-05-03 00:33:32,937 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:33:32,937 INFO L523 BasicCegarLoop]: trace histogram [40, 40, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:33:32,937 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-05-03 00:33:32,937 INFO L428 AbstractCegarLoop]: === Iteration 53 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:33:32,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:33:32,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1740706818, now seen corresponding path program 47 times [2021-05-03 00:33:32,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:33:32,938 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1565345169] [2021-05-03 00:33:32,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:33:33,647 WARN L205 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 158 [2021-05-03 00:33:33,824 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_6271) (< v_main_~c~0_626 5) (<= 5 v_main_~d~0_1813)) InVars {main_~c~0=v_main_~c~0_626, main_~d~0=v_main_~d~0_1813, main_~e~0=v_main_~e~0_6271} OutVars{main_~c~0=v_main_~c~0_626, main_~d~0=v_main_~d~0_1813, main_~e~0=v_main_~e~0_6271} AuxVars[] AssignedVars[] [2021-05-03 00:33:33,825 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:33:33,849 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:33,852 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:33,865 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:33:33,890 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_6274) (< v_main_~d~0_1815 5)) InVars {main_~d~0=v_main_~d~0_1815, main_~e~0=v_main_~e~0_6274} OutVars{main_~d~0=v_main_~d~0_1815, main_~e~0=v_main_~e~0_6274} AuxVars[] AssignedVars[] [2021-05-03 00:33:33,891 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:33,906 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:33,908 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:33,917 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:33,934 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_6276 5) InVars {main_~e~0=v_main_~e~0_6276} OutVars{main_~e~0=v_main_~e~0_6276} AuxVars[] AssignedVars[] [2021-05-03 00:33:33,935 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:33,936 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:33,940 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:33,952 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:33,967 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_6271) (< v_main_~c~0_626 5) (<= 5 v_main_~d~0_1813)) InVars {main_~c~0=v_main_~c~0_626, main_~d~0=v_main_~d~0_1813, main_~e~0=v_main_~e~0_6271} OutVars{main_~c~0=v_main_~c~0_626, main_~d~0=v_main_~d~0_1813, main_~e~0=v_main_~e~0_6271} AuxVars[] AssignedVars[] [2021-05-03 00:33:33,968 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:33:33,992 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:33,995 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:34,009 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:33:34,051 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_6274) (< v_main_~d~0_1815 5)) InVars {main_~d~0=v_main_~d~0_1815, main_~e~0=v_main_~e~0_6274} OutVars{main_~d~0=v_main_~d~0_1815, main_~e~0=v_main_~e~0_6274} AuxVars[] AssignedVars[] [2021-05-03 00:33:34,052 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:34,053 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:34,055 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:34,076 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:34,093 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_6276 5) InVars {main_~e~0=v_main_~e~0_6276} OutVars{main_~e~0=v_main_~e~0_6276} AuxVars[] AssignedVars[] [2021-05-03 00:33:34,094 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:34,095 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:34,099 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:34,111 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:34,122 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:33:34,123 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:34,140 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:33:34,154 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_6271) (< v_main_~c~0_626 5) (<= 5 v_main_~d~0_1813)) InVars {main_~c~0=v_main_~c~0_626, main_~d~0=v_main_~d~0_1813, main_~e~0=v_main_~e~0_6271} OutVars{main_~c~0=v_main_~c~0_626, main_~d~0=v_main_~d~0_1813, main_~e~0=v_main_~e~0_6271} AuxVars[] AssignedVars[] [2021-05-03 00:33:34,165 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:33:34,190 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:34,193 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:34,208 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:33:34,234 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_6274) (< v_main_~d~0_1815 5)) InVars {main_~d~0=v_main_~d~0_1815, main_~e~0=v_main_~e~0_6274} OutVars{main_~d~0=v_main_~d~0_1815, main_~e~0=v_main_~e~0_6274} AuxVars[] AssignedVars[] [2021-05-03 00:33:34,235 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:34,236 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:34,238 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:34,257 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:34,274 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_6276 5) InVars {main_~e~0=v_main_~e~0_6276} OutVars{main_~e~0=v_main_~e~0_6276} AuxVars[] AssignedVars[] [2021-05-03 00:33:34,275 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:34,276 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:34,279 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:34,291 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:34,309 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:33:34,309 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:34,329 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:33:34,341 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:33:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:33:34,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:33:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:33:34,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:33:36,106 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:33:36,107 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1565345169] [2021-05-03 00:33:36,107 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1565345169] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:33:36,107 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:33:36,107 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [] total 57 [2021-05-03 00:33:36,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629915603] [2021-05-03 00:33:36,107 INFO L460 AbstractCegarLoop]: Interpolant automaton has 57 states [2021-05-03 00:33:36,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:33:36,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-05-03 00:33:36,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=2925, Unknown=0, NotChecked=0, Total=3192 [2021-05-03 00:33:36,108 INFO L87 Difference]: Start difference. First operand 123 states and 127 transitions. Second operand has 57 states, 57 states have (on average 2.087719298245614) internal successors, (119), 56 states have internal predecessors, (119), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:40,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:33:40,270 INFO L93 Difference]: Finished difference Result 155 states and 171 transitions. [2021-05-03 00:33:40,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-05-03 00:33:40,270 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 2.087719298245614) internal successors, (119), 56 states have internal predecessors, (119), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2021-05-03 00:33:40,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:33:40,271 INFO L225 Difference]: With dead ends: 155 [2021-05-03 00:33:40,271 INFO L226 Difference]: Without dead ends: 142 [2021-05-03 00:33:40,271 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 51 SyntacticMatches, 17 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2640 ImplicationChecksByTransitivity, 4091.0ms TimeCoverageRelationStatistics Valid=795, Invalid=11415, Unknown=0, NotChecked=0, Total=12210 [2021-05-03 00:33:40,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-05-03 00:33:40,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 125. [2021-05-03 00:33:40,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 121 states have (on average 1.0413223140495869) internal successors, (126), 121 states have internal predecessors, (126), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:40,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 129 transitions. [2021-05-03 00:33:40,346 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 129 transitions. Word has length 122 [2021-05-03 00:33:40,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:33:40,346 INFO L480 AbstractCegarLoop]: Abstraction has 125 states and 129 transitions. [2021-05-03 00:33:40,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 57 states, 57 states have (on average 2.087719298245614) internal successors, (119), 56 states have internal predecessors, (119), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:40,346 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 129 transitions. [2021-05-03 00:33:40,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-05-03 00:33:40,347 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:33:40,347 INFO L523 BasicCegarLoop]: trace histogram [41, 41, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:33:40,347 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-05-03 00:33:40,347 INFO L428 AbstractCegarLoop]: === Iteration 54 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:33:40,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:33:40,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1284125216, now seen corresponding path program 48 times [2021-05-03 00:33:40,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:33:40,347 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720266628] [2021-05-03 00:33:40,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:33:41,009 WARN L205 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 157 [2021-05-03 00:33:41,207 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_1880) (<= 5 v_main_~e~0_6509) (< v_main_~c~0_654 5)) InVars {main_~c~0=v_main_~c~0_654, main_~d~0=v_main_~d~0_1880, main_~e~0=v_main_~e~0_6509} OutVars{main_~c~0=v_main_~c~0_654, main_~d~0=v_main_~d~0_1880, main_~e~0=v_main_~e~0_6509} AuxVars[] AssignedVars[] [2021-05-03 00:33:41,209 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:33:41,209 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:41,212 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:41,247 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:33:41,273 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1882 5) (<= 5 v_main_~e~0_6512)) InVars {main_~d~0=v_main_~d~0_1882, main_~e~0=v_main_~e~0_6512} OutVars{main_~d~0=v_main_~d~0_1882, main_~e~0=v_main_~e~0_6512} AuxVars[] AssignedVars[] [2021-05-03 00:33:41,274 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:41,289 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:41,291 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:41,300 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:41,318 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_6514 5) InVars {main_~e~0=v_main_~e~0_6514} OutVars{main_~e~0=v_main_~e~0_6514} AuxVars[] AssignedVars[] [2021-05-03 00:33:41,319 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:41,320 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:41,324 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:41,336 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:41,350 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_1880) (<= 5 v_main_~e~0_6509) (< v_main_~c~0_654 5)) InVars {main_~c~0=v_main_~c~0_654, main_~d~0=v_main_~d~0_1880, main_~e~0=v_main_~e~0_6509} OutVars{main_~c~0=v_main_~c~0_654, main_~d~0=v_main_~d~0_1880, main_~e~0=v_main_~e~0_6509} AuxVars[] AssignedVars[] [2021-05-03 00:33:41,352 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:33:41,375 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:41,378 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:41,392 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:33:41,419 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1882 5) (<= 5 v_main_~e~0_6512)) InVars {main_~d~0=v_main_~d~0_1882, main_~e~0=v_main_~e~0_6512} OutVars{main_~d~0=v_main_~d~0_1882, main_~e~0=v_main_~e~0_6512} AuxVars[] AssignedVars[] [2021-05-03 00:33:41,420 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:41,433 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:41,435 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:41,443 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:41,458 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_6514 5) InVars {main_~e~0=v_main_~e~0_6514} OutVars{main_~e~0=v_main_~e~0_6514} AuxVars[] AssignedVars[] [2021-05-03 00:33:41,459 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:41,465 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:41,468 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:41,473 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:41,482 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:33:41,483 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:41,497 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:33:41,509 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_1880) (<= 5 v_main_~e~0_6509) (< v_main_~c~0_654 5)) InVars {main_~c~0=v_main_~c~0_654, main_~d~0=v_main_~d~0_1880, main_~e~0=v_main_~e~0_6509} OutVars{main_~c~0=v_main_~c~0_654, main_~d~0=v_main_~d~0_1880, main_~e~0=v_main_~e~0_6509} AuxVars[] AssignedVars[] [2021-05-03 00:33:41,510 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:33:41,511 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:41,513 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:41,540 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:33:41,561 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_1882 5) (<= 5 v_main_~e~0_6512)) InVars {main_~d~0=v_main_~d~0_1882, main_~e~0=v_main_~e~0_6512} OutVars{main_~d~0=v_main_~d~0_1882, main_~e~0=v_main_~e~0_6512} AuxVars[] AssignedVars[] [2021-05-03 00:33:41,562 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:41,562 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:41,564 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:41,581 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:41,594 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_6514 5) InVars {main_~e~0=v_main_~e~0_6514} OutVars{main_~e~0=v_main_~e~0_6514} AuxVars[] AssignedVars[] [2021-05-03 00:33:41,595 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:41,596 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:41,599 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:41,608 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:41,623 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:33:41,624 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:41,641 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:33:41,651 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:33:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:33:41,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:33:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:33:41,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:33:43,495 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:33:43,496 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720266628] [2021-05-03 00:33:43,496 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1720266628] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:33:43,496 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:33:43,496 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [] total 58 [2021-05-03 00:33:43,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369422440] [2021-05-03 00:33:43,496 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states [2021-05-03 00:33:43,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:33:43,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-05-03 00:33:43,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=3035, Unknown=0, NotChecked=0, Total=3306 [2021-05-03 00:33:43,497 INFO L87 Difference]: Start difference. First operand 125 states and 129 transitions. Second operand has 58 states, 58 states have (on average 2.086206896551724) internal successors, (121), 57 states have internal predecessors, (121), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:47,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:33:47,938 INFO L93 Difference]: Finished difference Result 159 states and 176 transitions. [2021-05-03 00:33:47,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-05-03 00:33:47,938 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 2.086206896551724) internal successors, (121), 57 states have internal predecessors, (121), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2021-05-03 00:33:47,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:33:47,939 INFO L225 Difference]: With dead ends: 159 [2021-05-03 00:33:47,939 INFO L226 Difference]: Without dead ends: 146 [2021-05-03 00:33:47,940 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 49 SyntacticMatches, 20 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2765 ImplicationChecksByTransitivity, 4280.6ms TimeCoverageRelationStatistics Valid=807, Invalid=11849, Unknown=0, NotChecked=0, Total=12656 [2021-05-03 00:33:47,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-05-03 00:33:48,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 129. [2021-05-03 00:33:48,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 125 states have (on average 1.04) internal successors, (130), 125 states have internal predecessors, (130), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:48,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 133 transitions. [2021-05-03 00:33:48,025 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 133 transitions. Word has length 124 [2021-05-03 00:33:48,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:33:48,026 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 133 transitions. [2021-05-03 00:33:48,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 58 states, 58 states have (on average 2.086206896551724) internal successors, (121), 57 states have internal predecessors, (121), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:48,026 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 133 transitions. [2021-05-03 00:33:48,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-05-03 00:33:48,026 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:33:48,026 INFO L523 BasicCegarLoop]: trace histogram [42, 42, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:33:48,027 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-05-03 00:33:48,027 INFO L428 AbstractCegarLoop]: === Iteration 55 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:33:48,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:33:48,027 INFO L82 PathProgramCache]: Analyzing trace with hash -454850498, now seen corresponding path program 49 times [2021-05-03 00:33:48,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:33:48,027 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178912024] [2021-05-03 00:33:48,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:33:48,756 WARN L205 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 153 [2021-05-03 00:33:48,967 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_6745) (<= 5 v_main_~d~0_1945) (< v_main_~c~0_682 5)) InVars {main_~c~0=v_main_~c~0_682, main_~d~0=v_main_~d~0_1945, main_~e~0=v_main_~e~0_6745} OutVars{main_~c~0=v_main_~c~0_682, main_~d~0=v_main_~d~0_1945, main_~e~0=v_main_~e~0_6745} AuxVars[] AssignedVars[] [2021-05-03 00:33:48,968 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:33:48,996 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:48,999 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:49,017 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:33:49,047 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_6748) (< v_main_~d~0_1947 5)) InVars {main_~d~0=v_main_~d~0_1947, main_~e~0=v_main_~e~0_6748} OutVars{main_~d~0=v_main_~d~0_1947, main_~e~0=v_main_~e~0_6748} AuxVars[] AssignedVars[] [2021-05-03 00:33:49,048 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:49,049 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:49,052 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:49,078 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:49,099 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_6750 5) InVars {main_~e~0=v_main_~e~0_6750} OutVars{main_~e~0=v_main_~e~0_6750} AuxVars[] AssignedVars[] [2021-05-03 00:33:49,100 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:49,108 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:49,113 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:49,121 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:49,137 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_6745) (<= 5 v_main_~d~0_1945) (< v_main_~c~0_682 5)) InVars {main_~c~0=v_main_~c~0_682, main_~d~0=v_main_~d~0_1945, main_~e~0=v_main_~e~0_6745} OutVars{main_~c~0=v_main_~c~0_682, main_~d~0=v_main_~d~0_1945, main_~e~0=v_main_~e~0_6745} AuxVars[] AssignedVars[] [2021-05-03 00:33:49,139 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:33:49,140 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:49,143 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:49,186 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:33:49,215 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_6748) (< v_main_~d~0_1947 5)) InVars {main_~d~0=v_main_~d~0_1947, main_~e~0=v_main_~e~0_6748} OutVars{main_~d~0=v_main_~d~0_1947, main_~e~0=v_main_~e~0_6748} AuxVars[] AssignedVars[] [2021-05-03 00:33:49,216 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:49,217 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:49,220 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:49,247 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:49,267 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_6750 5) InVars {main_~e~0=v_main_~e~0_6750} OutVars{main_~e~0=v_main_~e~0_6750} AuxVars[] AssignedVars[] [2021-05-03 00:33:49,268 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:49,276 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:49,281 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:49,288 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:49,301 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:33:49,302 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:49,322 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:33:49,338 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_6745) (<= 5 v_main_~d~0_1945) (< v_main_~c~0_682 5)) InVars {main_~c~0=v_main_~c~0_682, main_~d~0=v_main_~d~0_1945, main_~e~0=v_main_~e~0_6745} OutVars{main_~c~0=v_main_~c~0_682, main_~d~0=v_main_~d~0_1945, main_~e~0=v_main_~e~0_6745} AuxVars[] AssignedVars[] [2021-05-03 00:33:49,340 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:33:49,371 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:49,374 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:49,393 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:33:49,422 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_6748) (< v_main_~d~0_1947 5)) InVars {main_~d~0=v_main_~d~0_1947, main_~e~0=v_main_~e~0_6748} OutVars{main_~d~0=v_main_~d~0_1947, main_~e~0=v_main_~e~0_6748} AuxVars[] AssignedVars[] [2021-05-03 00:33:49,424 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:49,442 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:49,445 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:49,457 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:49,477 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_6750 5) InVars {main_~e~0=v_main_~e~0_6750} OutVars{main_~e~0=v_main_~e~0_6750} AuxVars[] AssignedVars[] [2021-05-03 00:33:49,478 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:49,486 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:49,491 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:49,499 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:49,521 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:33:49,521 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:49,549 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:33:49,566 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:33:49,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:33:49,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:33:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:33:49,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:33:51,704 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:33:51,704 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178912024] [2021-05-03 00:33:51,704 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1178912024] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:33:51,704 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:33:51,704 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [59] imperfect sequences [] total 59 [2021-05-03 00:33:51,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036104132] [2021-05-03 00:33:51,705 INFO L460 AbstractCegarLoop]: Interpolant automaton has 59 states [2021-05-03 00:33:51,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:33:51,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-05-03 00:33:51,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=3147, Unknown=0, NotChecked=0, Total=3422 [2021-05-03 00:33:51,705 INFO L87 Difference]: Start difference. First operand 129 states and 133 transitions. Second operand has 59 states, 59 states have (on average 2.0847457627118646) internal successors, (123), 58 states have internal predecessors, (123), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:55,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:33:55,878 INFO L93 Difference]: Finished difference Result 160 states and 176 transitions. [2021-05-03 00:33:55,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-05-03 00:33:55,879 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 2.0847457627118646) internal successors, (123), 58 states have internal predecessors, (123), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2021-05-03 00:33:55,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:33:55,879 INFO L225 Difference]: With dead ends: 160 [2021-05-03 00:33:55,880 INFO L226 Difference]: Without dead ends: 147 [2021-05-03 00:33:55,880 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 53 SyntacticMatches, 17 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2923 ImplicationChecksByTransitivity, 4434.8ms TimeCoverageRelationStatistics Valid=819, Invalid=12291, Unknown=0, NotChecked=0, Total=13110 [2021-05-03 00:33:55,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-05-03 00:33:55,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 131. [2021-05-03 00:33:55,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 127 states have (on average 1.0393700787401574) internal successors, (132), 127 states have internal predecessors, (132), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:55,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 135 transitions. [2021-05-03 00:33:55,980 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 135 transitions. Word has length 126 [2021-05-03 00:33:55,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:33:55,980 INFO L480 AbstractCegarLoop]: Abstraction has 131 states and 135 transitions. [2021-05-03 00:33:55,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 59 states, 59 states have (on average 2.0847457627118646) internal successors, (123), 58 states have internal predecessors, (123), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:33:55,981 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 135 transitions. [2021-05-03 00:33:55,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-05-03 00:33:55,981 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:33:55,981 INFO L523 BasicCegarLoop]: trace histogram [42, 42, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:33:55,981 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-05-03 00:33:55,981 INFO L428 AbstractCegarLoop]: === Iteration 56 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:33:55,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:33:55,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1715613841, now seen corresponding path program 50 times [2021-05-03 00:33:55,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:33:55,982 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278607628] [2021-05-03 00:33:55,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:33:56,612 WARN L205 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 156 [2021-05-03 00:33:56,802 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_710 5) (<= 5 v_main_~e~0_6986) (<= 5 v_main_~d~0_2014)) InVars {main_~c~0=v_main_~c~0_710, main_~d~0=v_main_~d~0_2014, main_~e~0=v_main_~e~0_6986} OutVars{main_~c~0=v_main_~c~0_710, main_~d~0=v_main_~d~0_2014, main_~e~0=v_main_~e~0_6986} AuxVars[] AssignedVars[] [2021-05-03 00:33:56,803 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:33:56,826 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:56,828 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:56,842 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:33:56,868 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_2016 5) (<= 5 v_main_~e~0_6989)) InVars {main_~d~0=v_main_~d~0_2016, main_~e~0=v_main_~e~0_6989} OutVars{main_~d~0=v_main_~d~0_2016, main_~e~0=v_main_~e~0_6989} AuxVars[] AssignedVars[] [2021-05-03 00:33:56,869 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:56,870 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:56,872 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:56,893 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:56,912 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_6991 5) InVars {main_~e~0=v_main_~e~0_6991} OutVars{main_~e~0=v_main_~e~0_6991} AuxVars[] AssignedVars[] [2021-05-03 00:33:56,913 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:56,919 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:56,923 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:56,929 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:56,943 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_710 5) (<= 5 v_main_~e~0_6986) (<= 5 v_main_~d~0_2014)) InVars {main_~c~0=v_main_~c~0_710, main_~d~0=v_main_~d~0_2014, main_~e~0=v_main_~e~0_6986} OutVars{main_~c~0=v_main_~c~0_710, main_~d~0=v_main_~d~0_2014, main_~e~0=v_main_~e~0_6986} AuxVars[] AssignedVars[] [2021-05-03 00:33:56,944 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:33:56,966 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:56,969 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:56,996 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:33:57,022 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_2016 5) (<= 5 v_main_~e~0_6989)) InVars {main_~d~0=v_main_~d~0_2016, main_~e~0=v_main_~e~0_6989} OutVars{main_~d~0=v_main_~d~0_2016, main_~e~0=v_main_~e~0_6989} AuxVars[] AssignedVars[] [2021-05-03 00:33:57,024 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:57,025 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:57,027 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:57,048 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:57,066 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_6991 5) InVars {main_~e~0=v_main_~e~0_6991} OutVars{main_~e~0=v_main_~e~0_6991} AuxVars[] AssignedVars[] [2021-05-03 00:33:57,067 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:57,073 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:57,077 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:57,083 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:57,095 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:33:57,095 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:57,113 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:33:57,127 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_710 5) (<= 5 v_main_~e~0_6986) (<= 5 v_main_~d~0_2014)) InVars {main_~c~0=v_main_~c~0_710, main_~d~0=v_main_~d~0_2014, main_~e~0=v_main_~e~0_6986} OutVars{main_~c~0=v_main_~c~0_710, main_~d~0=v_main_~d~0_2014, main_~e~0=v_main_~e~0_6986} AuxVars[] AssignedVars[] [2021-05-03 00:33:57,129 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:33:57,129 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:57,132 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:57,169 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:33:57,198 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_2016 5) (<= 5 v_main_~e~0_6989)) InVars {main_~d~0=v_main_~d~0_2016, main_~e~0=v_main_~e~0_6989} OutVars{main_~d~0=v_main_~d~0_2016, main_~e~0=v_main_~e~0_6989} AuxVars[] AssignedVars[] [2021-05-03 00:33:57,199 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:33:57,220 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:57,222 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:33:57,232 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:33:57,252 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_6991 5) InVars {main_~e~0=v_main_~e~0_6991} OutVars{main_~e~0=v_main_~e~0_6991} AuxVars[] AssignedVars[] [2021-05-03 00:33:57,253 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:33:57,261 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:57,265 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:33:57,271 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:33:57,290 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:33:57,291 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:33:57,313 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:33:57,326 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:33:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:33:57,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:33:57,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:33:57,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:33:59,354 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:33:59,354 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278607628] [2021-05-03 00:33:59,354 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1278607628] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:33:59,354 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:33:59,355 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [] total 60 [2021-05-03 00:33:59,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695858682] [2021-05-03 00:33:59,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 60 states [2021-05-03 00:33:59,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:33:59,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-05-03 00:33:59,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=3261, Unknown=0, NotChecked=0, Total=3540 [2021-05-03 00:33:59,355 INFO L87 Difference]: Start difference. First operand 131 states and 135 transitions. Second operand has 60 states, 60 states have (on average 2.1) internal successors, (126), 59 states have internal predecessors, (126), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:34:03,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:34:03,122 INFO L93 Difference]: Finished difference Result 162 states and 178 transitions. [2021-05-03 00:34:03,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-05-03 00:34:03,123 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 2.1) internal successors, (126), 59 states have internal predecessors, (126), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 129 [2021-05-03 00:34:03,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:34:03,124 INFO L225 Difference]: With dead ends: 162 [2021-05-03 00:34:03,124 INFO L226 Difference]: Without dead ends: 149 [2021-05-03 00:34:03,124 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 59 SyntacticMatches, 13 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3045 ImplicationChecksByTransitivity, 4069.2ms TimeCoverageRelationStatistics Valid=831, Invalid=12741, Unknown=0, NotChecked=0, Total=13572 [2021-05-03 00:34:03,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-05-03 00:34:03,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 132. [2021-05-03 00:34:03,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 128 states have (on average 1.0390625) internal successors, (133), 128 states have internal predecessors, (133), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:34:03,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 136 transitions. [2021-05-03 00:34:03,207 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 136 transitions. Word has length 129 [2021-05-03 00:34:03,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:34:03,207 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 136 transitions. [2021-05-03 00:34:03,207 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 60 states, 60 states have (on average 2.1) internal successors, (126), 59 states have internal predecessors, (126), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:34:03,207 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 136 transitions. [2021-05-03 00:34:03,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-05-03 00:34:03,208 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:34:03,208 INFO L523 BasicCegarLoop]: trace histogram [43, 43, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:34:03,208 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-05-03 00:34:03,208 INFO L428 AbstractCegarLoop]: === Iteration 57 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:34:03,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:34:03,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1496408589, now seen corresponding path program 51 times [2021-05-03 00:34:03,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:34:03,209 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366434987] [2021-05-03 00:34:03,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:34:03,734 WARN L205 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 156 [2021-05-03 00:34:03,916 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_2085) (< v_main_~c~0_738 5) (<= 5 v_main_~e~0_7232)) InVars {main_~c~0=v_main_~c~0_738, main_~d~0=v_main_~d~0_2085, main_~e~0=v_main_~e~0_7232} OutVars{main_~c~0=v_main_~c~0_738, main_~d~0=v_main_~d~0_2085, main_~e~0=v_main_~e~0_7232} AuxVars[] AssignedVars[] [2021-05-03 00:34:03,918 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:34:03,943 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:03,946 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:03,960 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:34:03,988 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_2087 5) (<= 5 v_main_~e~0_7235)) InVars {main_~d~0=v_main_~d~0_2087, main_~e~0=v_main_~e~0_7235} OutVars{main_~d~0=v_main_~d~0_2087, main_~e~0=v_main_~e~0_7235} AuxVars[] AssignedVars[] [2021-05-03 00:34:03,990 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:34:03,990 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:03,993 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:04,013 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:34:04,032 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_7237 5) InVars {main_~e~0=v_main_~e~0_7237} OutVars{main_~e~0=v_main_~e~0_7237} AuxVars[] AssignedVars[] [2021-05-03 00:34:04,033 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:34:04,039 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:04,043 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:34:04,049 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:34:04,063 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_2085) (< v_main_~c~0_738 5) (<= 5 v_main_~e~0_7232)) InVars {main_~c~0=v_main_~c~0_738, main_~d~0=v_main_~d~0_2085, main_~e~0=v_main_~e~0_7232} OutVars{main_~c~0=v_main_~c~0_738, main_~d~0=v_main_~d~0_2085, main_~e~0=v_main_~e~0_7232} AuxVars[] AssignedVars[] [2021-05-03 00:34:04,064 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:34:04,065 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:04,067 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:04,101 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:34:04,126 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_2087 5) (<= 5 v_main_~e~0_7235)) InVars {main_~d~0=v_main_~d~0_2087, main_~e~0=v_main_~e~0_7235} OutVars{main_~d~0=v_main_~d~0_2087, main_~e~0=v_main_~e~0_7235} AuxVars[] AssignedVars[] [2021-05-03 00:34:04,127 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:34:04,128 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:04,130 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:04,151 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:34:04,193 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_7237 5) InVars {main_~e~0=v_main_~e~0_7237} OutVars{main_~e~0=v_main_~e~0_7237} AuxVars[] AssignedVars[] [2021-05-03 00:34:04,194 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:34:04,195 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:04,199 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:34:04,212 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:34:04,228 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:34:04,229 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:04,256 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:34:04,272 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_2085) (< v_main_~c~0_738 5) (<= 5 v_main_~e~0_7232)) InVars {main_~c~0=v_main_~c~0_738, main_~d~0=v_main_~d~0_2085, main_~e~0=v_main_~e~0_7232} OutVars{main_~c~0=v_main_~c~0_738, main_~d~0=v_main_~d~0_2085, main_~e~0=v_main_~e~0_7232} AuxVars[] AssignedVars[] [2021-05-03 00:34:04,273 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:34:04,274 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:04,277 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:04,310 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:34:04,335 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_2087 5) (<= 5 v_main_~e~0_7235)) InVars {main_~d~0=v_main_~d~0_2087, main_~e~0=v_main_~e~0_7235} OutVars{main_~d~0=v_main_~d~0_2087, main_~e~0=v_main_~e~0_7235} AuxVars[] AssignedVars[] [2021-05-03 00:34:04,336 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:34:04,351 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:04,353 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:04,361 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:34:04,378 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_7237 5) InVars {main_~e~0=v_main_~e~0_7237} OutVars{main_~e~0=v_main_~e~0_7237} AuxVars[] AssignedVars[] [2021-05-03 00:34:04,379 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:34:04,386 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:04,390 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:34:04,395 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:34:04,437 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:34:04,438 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:04,463 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:34:04,476 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:34:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:34:04,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:34:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:34:04,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:34:06,609 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:34:06,609 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366434987] [2021-05-03 00:34:06,609 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [366434987] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:34:06,609 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:34:06,609 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [] total 61 [2021-05-03 00:34:06,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332443874] [2021-05-03 00:34:06,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 61 states [2021-05-03 00:34:06,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:34:06,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-05-03 00:34:06,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=3377, Unknown=0, NotChecked=0, Total=3660 [2021-05-03 00:34:06,610 INFO L87 Difference]: Start difference. First operand 132 states and 136 transitions. Second operand has 61 states, 61 states have (on average 2.098360655737705) internal successors, (128), 60 states have internal predecessors, (128), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:34:11,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:34:11,764 INFO L93 Difference]: Finished difference Result 164 states and 180 transitions. [2021-05-03 00:34:11,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-05-03 00:34:11,765 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 2.098360655737705) internal successors, (128), 60 states have internal predecessors, (128), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2021-05-03 00:34:11,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:34:11,766 INFO L225 Difference]: With dead ends: 164 [2021-05-03 00:34:11,766 INFO L226 Difference]: Without dead ends: 151 [2021-05-03 00:34:11,767 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 54 SyntacticMatches, 19 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3335 ImplicationChecksByTransitivity, 5020.1ms TimeCoverageRelationStatistics Valid=843, Invalid=13199, Unknown=0, NotChecked=0, Total=14042 [2021-05-03 00:34:11,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-05-03 00:34:11,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 134. [2021-05-03 00:34:11,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 130 states have (on average 1.0384615384615385) internal successors, (135), 130 states have internal predecessors, (135), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:34:11,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 138 transitions. [2021-05-03 00:34:11,869 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 138 transitions. Word has length 131 [2021-05-03 00:34:11,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:34:11,869 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 138 transitions. [2021-05-03 00:34:11,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 61 states, 61 states have (on average 2.098360655737705) internal successors, (128), 60 states have internal predecessors, (128), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:34:11,869 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 138 transitions. [2021-05-03 00:34:11,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-05-03 00:34:11,870 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:34:11,870 INFO L523 BasicCegarLoop]: trace histogram [44, 44, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:34:11,870 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-05-03 00:34:11,870 INFO L428 AbstractCegarLoop]: === Iteration 58 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:34:11,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:34:11,870 INFO L82 PathProgramCache]: Analyzing trace with hash 168477995, now seen corresponding path program 52 times [2021-05-03 00:34:11,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:34:11,871 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715483988] [2021-05-03 00:34:11,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:34:12,566 WARN L205 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 153 [2021-05-03 00:34:12,788 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_766 5) (<= 5 v_main_~e~0_7483) (<= 5 v_main_~d~0_2156)) InVars {main_~c~0=v_main_~c~0_766, main_~d~0=v_main_~d~0_2156, main_~e~0=v_main_~e~0_7483} OutVars{main_~c~0=v_main_~c~0_766, main_~d~0=v_main_~d~0_2156, main_~e~0=v_main_~e~0_7483} AuxVars[] AssignedVars[] [2021-05-03 00:34:12,790 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:34:12,791 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:12,794 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:12,838 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:34:12,862 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_2158 5) (<= 5 v_main_~e~0_7486)) InVars {main_~d~0=v_main_~d~0_2158, main_~e~0=v_main_~e~0_7486} OutVars{main_~d~0=v_main_~d~0_2158, main_~e~0=v_main_~e~0_7486} AuxVars[] AssignedVars[] [2021-05-03 00:34:12,863 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:34:12,876 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:12,879 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:12,887 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:34:12,904 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_7488 5) InVars {main_~e~0=v_main_~e~0_7488} OutVars{main_~e~0=v_main_~e~0_7488} AuxVars[] AssignedVars[] [2021-05-03 00:34:12,905 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:34:12,911 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:12,915 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:34:12,920 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:34:12,934 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_766 5) (<= 5 v_main_~e~0_7483) (<= 5 v_main_~d~0_2156)) InVars {main_~c~0=v_main_~c~0_766, main_~d~0=v_main_~d~0_2156, main_~e~0=v_main_~e~0_7483} OutVars{main_~c~0=v_main_~c~0_766, main_~d~0=v_main_~d~0_2156, main_~e~0=v_main_~e~0_7483} AuxVars[] AssignedVars[] [2021-05-03 00:34:12,935 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:34:12,957 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:12,960 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:12,974 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:34:12,998 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_2158 5) (<= 5 v_main_~e~0_7486)) InVars {main_~d~0=v_main_~d~0_2158, main_~e~0=v_main_~e~0_7486} OutVars{main_~d~0=v_main_~d~0_2158, main_~e~0=v_main_~e~0_7486} AuxVars[] AssignedVars[] [2021-05-03 00:34:12,999 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:34:13,002 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:13,004 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:13,024 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:34:13,041 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_7488 5) InVars {main_~e~0=v_main_~e~0_7488} OutVars{main_~e~0=v_main_~e~0_7488} AuxVars[] AssignedVars[] [2021-05-03 00:34:13,041 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:34:13,048 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:13,052 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:34:13,058 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:34:13,069 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:34:13,070 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:13,099 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:34:13,113 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_766 5) (<= 5 v_main_~e~0_7483) (<= 5 v_main_~d~0_2156)) InVars {main_~c~0=v_main_~c~0_766, main_~d~0=v_main_~d~0_2156, main_~e~0=v_main_~e~0_7483} OutVars{main_~c~0=v_main_~c~0_766, main_~d~0=v_main_~d~0_2156, main_~e~0=v_main_~e~0_7483} AuxVars[] AssignedVars[] [2021-05-03 00:34:13,114 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:34:13,115 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:13,117 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:13,149 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:34:13,174 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_2158 5) (<= 5 v_main_~e~0_7486)) InVars {main_~d~0=v_main_~d~0_2158, main_~e~0=v_main_~e~0_7486} OutVars{main_~d~0=v_main_~d~0_2158, main_~e~0=v_main_~e~0_7486} AuxVars[] AssignedVars[] [2021-05-03 00:34:13,178 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:34:13,191 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:13,194 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:13,202 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:34:13,219 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_7488 5) InVars {main_~e~0=v_main_~e~0_7488} OutVars{main_~e~0=v_main_~e~0_7488} AuxVars[] AssignedVars[] [2021-05-03 00:34:13,220 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:34:13,226 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:13,230 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:34:13,235 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:34:13,254 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:34:13,255 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:13,276 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:34:13,289 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:34:13,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:34:13,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:34:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:34:13,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:34:15,392 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:34:15,393 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1715483988] [2021-05-03 00:34:15,393 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1715483988] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:34:15,393 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:34:15,393 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2021-05-03 00:34:15,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388626636] [2021-05-03 00:34:15,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 62 states [2021-05-03 00:34:15,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:34:15,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-05-03 00:34:15,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=3495, Unknown=0, NotChecked=0, Total=3782 [2021-05-03 00:34:15,394 INFO L87 Difference]: Start difference. First operand 134 states and 138 transitions. Second operand has 62 states, 62 states have (on average 2.096774193548387) internal successors, (130), 61 states have internal predecessors, (130), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:34:20,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:34:20,272 INFO L93 Difference]: Finished difference Result 166 states and 182 transitions. [2021-05-03 00:34:20,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-05-03 00:34:20,272 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 2.096774193548387) internal successors, (130), 61 states have internal predecessors, (130), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2021-05-03 00:34:20,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:34:20,273 INFO L225 Difference]: With dead ends: 166 [2021-05-03 00:34:20,273 INFO L226 Difference]: Without dead ends: 153 [2021-05-03 00:34:20,274 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 56 SyntacticMatches, 18 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3429 ImplicationChecksByTransitivity, 4829.9ms TimeCoverageRelationStatistics Valid=855, Invalid=13665, Unknown=0, NotChecked=0, Total=14520 [2021-05-03 00:34:20,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-05-03 00:34:20,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 136. [2021-05-03 00:34:20,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 132 states have (on average 1.0378787878787878) internal successors, (137), 132 states have internal predecessors, (137), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:34:20,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 140 transitions. [2021-05-03 00:34:20,369 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 140 transitions. Word has length 133 [2021-05-03 00:34:20,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:34:20,369 INFO L480 AbstractCegarLoop]: Abstraction has 136 states and 140 transitions. [2021-05-03 00:34:20,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 62 states, 62 states have (on average 2.096774193548387) internal successors, (130), 61 states have internal predecessors, (130), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:34:20,370 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 140 transitions. [2021-05-03 00:34:20,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-05-03 00:34:20,370 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:34:20,370 INFO L523 BasicCegarLoop]: trace histogram [45, 45, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:34:20,370 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-05-03 00:34:20,370 INFO L428 AbstractCegarLoop]: === Iteration 59 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:34:20,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:34:20,371 INFO L82 PathProgramCache]: Analyzing trace with hash -367535927, now seen corresponding path program 53 times [2021-05-03 00:34:20,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:34:20,371 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703661061] [2021-05-03 00:34:20,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:34:21,034 WARN L205 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 157 [2021-05-03 00:34:21,232 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_2227) (<= 5 v_main_~e~0_7739) (< v_main_~c~0_794 5)) InVars {main_~c~0=v_main_~c~0_794, main_~d~0=v_main_~d~0_2227, main_~e~0=v_main_~e~0_7739} OutVars{main_~c~0=v_main_~c~0_794, main_~d~0=v_main_~d~0_2227, main_~e~0=v_main_~e~0_7739} AuxVars[] AssignedVars[] [2021-05-03 00:34:21,234 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:34:21,257 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:21,260 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:21,274 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:34:21,301 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_7742) (< v_main_~d~0_2229 5)) InVars {main_~d~0=v_main_~d~0_2229, main_~e~0=v_main_~e~0_7742} OutVars{main_~d~0=v_main_~d~0_2229, main_~e~0=v_main_~e~0_7742} AuxVars[] AssignedVars[] [2021-05-03 00:34:21,302 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:34:21,317 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:21,319 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:21,328 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:34:21,347 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_7744 5) InVars {main_~e~0=v_main_~e~0_7744} OutVars{main_~e~0=v_main_~e~0_7744} AuxVars[] AssignedVars[] [2021-05-03 00:34:21,348 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:34:21,348 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:21,353 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:34:21,365 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:34:21,379 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_2227) (<= 5 v_main_~e~0_7739) (< v_main_~c~0_794 5)) InVars {main_~c~0=v_main_~c~0_794, main_~d~0=v_main_~d~0_2227, main_~e~0=v_main_~e~0_7739} OutVars{main_~c~0=v_main_~c~0_794, main_~d~0=v_main_~d~0_2227, main_~e~0=v_main_~e~0_7739} AuxVars[] AssignedVars[] [2021-05-03 00:34:21,380 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:34:21,403 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:21,406 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:21,421 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:34:21,448 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_7742) (< v_main_~d~0_2229 5)) InVars {main_~d~0=v_main_~d~0_2229, main_~e~0=v_main_~e~0_7742} OutVars{main_~d~0=v_main_~d~0_2229, main_~e~0=v_main_~e~0_7742} AuxVars[] AssignedVars[] [2021-05-03 00:34:21,449 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:34:21,449 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:21,452 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:21,473 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:34:21,492 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_7744 5) InVars {main_~e~0=v_main_~e~0_7744} OutVars{main_~e~0=v_main_~e~0_7744} AuxVars[] AssignedVars[] [2021-05-03 00:34:21,493 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:34:21,499 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:21,503 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:34:21,510 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:34:21,522 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:34:21,522 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:21,541 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:34:21,556 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_2227) (<= 5 v_main_~e~0_7739) (< v_main_~c~0_794 5)) InVars {main_~c~0=v_main_~c~0_794, main_~d~0=v_main_~d~0_2227, main_~e~0=v_main_~e~0_7739} OutVars{main_~c~0=v_main_~c~0_794, main_~d~0=v_main_~d~0_2227, main_~e~0=v_main_~e~0_7739} AuxVars[] AssignedVars[] [2021-05-03 00:34:21,557 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:34:21,581 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:21,584 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:21,599 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:34:21,625 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_7742) (< v_main_~d~0_2229 5)) InVars {main_~d~0=v_main_~d~0_2229, main_~e~0=v_main_~e~0_7742} OutVars{main_~d~0=v_main_~d~0_2229, main_~e~0=v_main_~e~0_7742} AuxVars[] AssignedVars[] [2021-05-03 00:34:21,627 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:34:21,627 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:21,630 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:21,651 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:34:21,670 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_7744 5) InVars {main_~e~0=v_main_~e~0_7744} OutVars{main_~e~0=v_main_~e~0_7744} AuxVars[] AssignedVars[] [2021-05-03 00:34:21,671 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:34:21,678 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:21,682 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:34:21,688 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:34:21,708 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:34:21,709 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:21,735 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:34:21,751 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:34:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:34:21,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:34:21,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:34:21,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:34:23,993 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:34:23,994 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1703661061] [2021-05-03 00:34:23,994 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1703661061] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:34:23,994 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:34:23,994 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [63] imperfect sequences [] total 63 [2021-05-03 00:34:23,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172246268] [2021-05-03 00:34:23,994 INFO L460 AbstractCegarLoop]: Interpolant automaton has 63 states [2021-05-03 00:34:23,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:34:23,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-05-03 00:34:23,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=3615, Unknown=0, NotChecked=0, Total=3906 [2021-05-03 00:34:23,995 INFO L87 Difference]: Start difference. First operand 136 states and 140 transitions. Second operand has 63 states, 63 states have (on average 2.0952380952380953) internal successors, (132), 62 states have internal predecessors, (132), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:34:29,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:34:29,042 INFO L93 Difference]: Finished difference Result 168 states and 184 transitions. [2021-05-03 00:34:29,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-05-03 00:34:29,043 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 2.0952380952380953) internal successors, (132), 62 states have internal predecessors, (132), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2021-05-03 00:34:29,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:34:29,044 INFO L225 Difference]: With dead ends: 168 [2021-05-03 00:34:29,044 INFO L226 Difference]: Without dead ends: 155 [2021-05-03 00:34:29,044 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 56 SyntacticMatches, 19 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3582 ImplicationChecksByTransitivity, 5020.0ms TimeCoverageRelationStatistics Valid=867, Invalid=14139, Unknown=0, NotChecked=0, Total=15006 [2021-05-03 00:34:29,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-05-03 00:34:29,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 138. [2021-05-03 00:34:29,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 134 states have (on average 1.037313432835821) internal successors, (139), 134 states have internal predecessors, (139), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:34:29,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 142 transitions. [2021-05-03 00:34:29,135 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 142 transitions. Word has length 135 [2021-05-03 00:34:29,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:34:29,135 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 142 transitions. [2021-05-03 00:34:29,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 63 states, 63 states have (on average 2.0952380952380953) internal successors, (132), 62 states have internal predecessors, (132), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:34:29,136 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 142 transitions. [2021-05-03 00:34:29,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-05-03 00:34:29,136 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:34:29,136 INFO L523 BasicCegarLoop]: trace histogram [46, 46, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:34:29,136 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-05-03 00:34:29,136 INFO L428 AbstractCegarLoop]: === Iteration 60 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:34:29,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:34:29,137 INFO L82 PathProgramCache]: Analyzing trace with hash -80839449, now seen corresponding path program 54 times [2021-05-03 00:34:29,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:34:29,137 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1538464221] [2021-05-03 00:34:29,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:34:29,832 WARN L205 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 158 [2021-05-03 00:34:30,035 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_822 5) (<= 5 v_main_~e~0_8000) (<= 5 v_main_~d~0_2298)) InVars {main_~c~0=v_main_~c~0_822, main_~d~0=v_main_~d~0_2298, main_~e~0=v_main_~e~0_8000} OutVars{main_~c~0=v_main_~c~0_822, main_~d~0=v_main_~d~0_2298, main_~e~0=v_main_~e~0_8000} AuxVars[] AssignedVars[] [2021-05-03 00:34:30,037 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:34:30,061 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:30,064 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:30,078 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:34:30,107 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_8003) (< v_main_~d~0_2300 5)) InVars {main_~d~0=v_main_~d~0_2300, main_~e~0=v_main_~e~0_8003} OutVars{main_~d~0=v_main_~d~0_2300, main_~e~0=v_main_~e~0_8003} AuxVars[] AssignedVars[] [2021-05-03 00:34:30,108 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:34:30,108 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:30,111 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:30,133 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:34:30,153 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_8005 5) InVars {main_~e~0=v_main_~e~0_8005} OutVars{main_~e~0=v_main_~e~0_8005} AuxVars[] AssignedVars[] [2021-05-03 00:34:30,154 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:34:30,161 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:30,165 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:34:30,171 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:34:30,186 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_822 5) (<= 5 v_main_~e~0_8000) (<= 5 v_main_~d~0_2298)) InVars {main_~c~0=v_main_~c~0_822, main_~d~0=v_main_~d~0_2298, main_~e~0=v_main_~e~0_8000} OutVars{main_~c~0=v_main_~c~0_822, main_~d~0=v_main_~d~0_2298, main_~e~0=v_main_~e~0_8000} AuxVars[] AssignedVars[] [2021-05-03 00:34:30,187 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:34:30,188 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:30,191 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:30,226 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:34:30,253 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_8003) (< v_main_~d~0_2300 5)) InVars {main_~d~0=v_main_~d~0_2300, main_~e~0=v_main_~e~0_8003} OutVars{main_~d~0=v_main_~d~0_2300, main_~e~0=v_main_~e~0_8003} AuxVars[] AssignedVars[] [2021-05-03 00:34:30,254 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:34:30,269 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:30,271 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:30,280 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:34:30,299 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_8005 5) InVars {main_~e~0=v_main_~e~0_8005} OutVars{main_~e~0=v_main_~e~0_8005} AuxVars[] AssignedVars[] [2021-05-03 00:34:30,300 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:34:30,301 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:30,305 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:34:30,317 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:34:30,332 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:34:30,333 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:30,351 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:34:30,366 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_822 5) (<= 5 v_main_~e~0_8000) (<= 5 v_main_~d~0_2298)) InVars {main_~c~0=v_main_~c~0_822, main_~d~0=v_main_~d~0_2298, main_~e~0=v_main_~e~0_8000} OutVars{main_~c~0=v_main_~c~0_822, main_~d~0=v_main_~d~0_2298, main_~e~0=v_main_~e~0_8000} AuxVars[] AssignedVars[] [2021-05-03 00:34:30,367 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:34:30,368 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:30,371 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:30,407 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:34:30,435 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_8003) (< v_main_~d~0_2300 5)) InVars {main_~d~0=v_main_~d~0_2300, main_~e~0=v_main_~e~0_8003} OutVars{main_~d~0=v_main_~d~0_2300, main_~e~0=v_main_~e~0_8003} AuxVars[] AssignedVars[] [2021-05-03 00:34:30,436 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:34:30,437 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:30,440 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:30,464 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:34:30,485 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_8005 5) InVars {main_~e~0=v_main_~e~0_8005} OutVars{main_~e~0=v_main_~e~0_8005} AuxVars[] AssignedVars[] [2021-05-03 00:34:30,486 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:34:30,486 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:30,491 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:34:30,504 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:34:30,526 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:34:30,527 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:30,550 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:34:30,563 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:34:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:34:30,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:34:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:34:30,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:34:32,962 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:34:32,962 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1538464221] [2021-05-03 00:34:32,962 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1538464221] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:34:32,962 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:34:32,962 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [64] imperfect sequences [] total 64 [2021-05-03 00:34:32,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640471084] [2021-05-03 00:34:32,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states [2021-05-03 00:34:32,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:34:32,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-05-03 00:34:32,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=3737, Unknown=0, NotChecked=0, Total=4032 [2021-05-03 00:34:32,963 INFO L87 Difference]: Start difference. First operand 138 states and 142 transitions. Second operand has 64 states, 64 states have (on average 2.09375) internal successors, (134), 63 states have internal predecessors, (134), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:34:38,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:34:38,150 INFO L93 Difference]: Finished difference Result 170 states and 186 transitions. [2021-05-03 00:34:38,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-05-03 00:34:38,151 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 2.09375) internal successors, (134), 63 states have internal predecessors, (134), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 137 [2021-05-03 00:34:38,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:34:38,152 INFO L225 Difference]: With dead ends: 170 [2021-05-03 00:34:38,152 INFO L226 Difference]: Without dead ends: 157 [2021-05-03 00:34:38,152 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 56 SyntacticMatches, 20 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3743 ImplicationChecksByTransitivity, 5236.0ms TimeCoverageRelationStatistics Valid=879, Invalid=14621, Unknown=0, NotChecked=0, Total=15500 [2021-05-03 00:34:38,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-05-03 00:34:38,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 140. [2021-05-03 00:34:38,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 136 states have (on average 1.036764705882353) internal successors, (141), 136 states have internal predecessors, (141), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:34:38,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 144 transitions. [2021-05-03 00:34:38,246 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 144 transitions. Word has length 137 [2021-05-03 00:34:38,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:34:38,246 INFO L480 AbstractCegarLoop]: Abstraction has 140 states and 144 transitions. [2021-05-03 00:34:38,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 64 states, 64 states have (on average 2.09375) internal successors, (134), 63 states have internal predecessors, (134), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:34:38,246 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 144 transitions. [2021-05-03 00:34:38,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-05-03 00:34:38,247 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:34:38,247 INFO L523 BasicCegarLoop]: trace histogram [47, 47, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:34:38,247 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-05-03 00:34:38,247 INFO L428 AbstractCegarLoop]: === Iteration 61 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:34:38,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:34:38,247 INFO L82 PathProgramCache]: Analyzing trace with hash 556568965, now seen corresponding path program 55 times [2021-05-03 00:34:38,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:34:38,247 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1490685113] [2021-05-03 00:34:38,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:34:38,932 WARN L205 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 156 [2021-05-03 00:34:39,139 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_8266) (< v_main_~c~0_850 5) (<= 5 v_main_~d~0_2369)) InVars {main_~c~0=v_main_~c~0_850, main_~d~0=v_main_~d~0_2369, main_~e~0=v_main_~e~0_8266} OutVars{main_~c~0=v_main_~c~0_850, main_~d~0=v_main_~d~0_2369, main_~e~0=v_main_~e~0_8266} AuxVars[] AssignedVars[] [2021-05-03 00:34:39,140 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:34:39,141 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:39,144 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:39,182 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:34:39,210 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_8269) (< v_main_~d~0_2371 5)) InVars {main_~d~0=v_main_~d~0_2371, main_~e~0=v_main_~e~0_8269} OutVars{main_~d~0=v_main_~d~0_2371, main_~e~0=v_main_~e~0_8269} AuxVars[] AssignedVars[] [2021-05-03 00:34:39,211 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:34:39,227 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:39,229 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:39,239 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:34:39,259 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_8271 5) InVars {main_~e~0=v_main_~e~0_8271} OutVars{main_~e~0=v_main_~e~0_8271} AuxVars[] AssignedVars[] [2021-05-03 00:34:39,260 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:34:39,260 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:39,265 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:34:39,277 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:34:39,293 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_8266) (< v_main_~c~0_850 5) (<= 5 v_main_~d~0_2369)) InVars {main_~c~0=v_main_~c~0_850, main_~d~0=v_main_~d~0_2369, main_~e~0=v_main_~e~0_8266} OutVars{main_~c~0=v_main_~c~0_850, main_~d~0=v_main_~d~0_2369, main_~e~0=v_main_~e~0_8266} AuxVars[] AssignedVars[] [2021-05-03 00:34:39,294 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:34:39,319 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:39,322 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:39,337 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:34:39,365 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_8269) (< v_main_~d~0_2371 5)) InVars {main_~d~0=v_main_~d~0_2371, main_~e~0=v_main_~e~0_8269} OutVars{main_~d~0=v_main_~d~0_2371, main_~e~0=v_main_~e~0_8269} AuxVars[] AssignedVars[] [2021-05-03 00:34:39,366 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:34:39,381 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:39,384 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:39,393 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:34:39,414 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_8271 5) InVars {main_~e~0=v_main_~e~0_8271} OutVars{main_~e~0=v_main_~e~0_8271} AuxVars[] AssignedVars[] [2021-05-03 00:34:39,415 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:34:39,422 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:39,427 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:34:39,433 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:34:39,446 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:34:39,447 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:39,465 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:34:39,481 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_8266) (< v_main_~c~0_850 5) (<= 5 v_main_~d~0_2369)) InVars {main_~c~0=v_main_~c~0_850, main_~d~0=v_main_~d~0_2369, main_~e~0=v_main_~e~0_8266} OutVars{main_~c~0=v_main_~c~0_850, main_~d~0=v_main_~d~0_2369, main_~e~0=v_main_~e~0_8266} AuxVars[] AssignedVars[] [2021-05-03 00:34:39,483 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:34:39,483 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:39,486 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:39,523 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:34:39,551 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_8269) (< v_main_~d~0_2371 5)) InVars {main_~d~0=v_main_~d~0_2371, main_~e~0=v_main_~e~0_8269} OutVars{main_~d~0=v_main_~d~0_2371, main_~e~0=v_main_~e~0_8269} AuxVars[] AssignedVars[] [2021-05-03 00:34:39,553 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:34:39,568 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:39,570 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:39,579 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:34:39,599 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_8271 5) InVars {main_~e~0=v_main_~e~0_8271} OutVars{main_~e~0=v_main_~e~0_8271} AuxVars[] AssignedVars[] [2021-05-03 00:34:39,600 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:34:39,607 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:39,611 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:34:39,617 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:34:39,638 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:34:39,639 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:39,667 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:34:39,683 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:34:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:34:39,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:34:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:34:39,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:34:41,761 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:34:41,762 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1490685113] [2021-05-03 00:34:41,762 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1490685113] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:34:41,762 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:34:41,762 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [65] imperfect sequences [] total 65 [2021-05-03 00:34:41,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458808874] [2021-05-03 00:34:41,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 65 states [2021-05-03 00:34:41,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:34:41,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-05-03 00:34:41,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=3861, Unknown=0, NotChecked=0, Total=4160 [2021-05-03 00:34:41,763 INFO L87 Difference]: Start difference. First operand 140 states and 144 transitions. Second operand has 65 states, 65 states have (on average 2.0923076923076924) internal successors, (136), 64 states have internal predecessors, (136), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:34:48,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:34:48,159 INFO L93 Difference]: Finished difference Result 174 states and 191 transitions. [2021-05-03 00:34:48,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-05-03 00:34:48,160 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 2.0923076923076924) internal successors, (136), 64 states have internal predecessors, (136), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2021-05-03 00:34:48,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:34:48,161 INFO L225 Difference]: With dead ends: 174 [2021-05-03 00:34:48,161 INFO L226 Difference]: Without dead ends: 161 [2021-05-03 00:34:48,163 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 62 SyntacticMatches, 15 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3849 ImplicationChecksByTransitivity, 5359.9ms TimeCoverageRelationStatistics Valid=891, Invalid=15111, Unknown=0, NotChecked=0, Total=16002 [2021-05-03 00:34:48,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-05-03 00:34:48,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 144. [2021-05-03 00:34:48,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 140 states have (on average 1.0357142857142858) internal successors, (145), 140 states have internal predecessors, (145), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:34:48,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 148 transitions. [2021-05-03 00:34:48,280 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 148 transitions. Word has length 139 [2021-05-03 00:34:48,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:34:48,280 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 148 transitions. [2021-05-03 00:34:48,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 65 states, 65 states have (on average 2.0923076923076924) internal successors, (136), 64 states have internal predecessors, (136), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:34:48,280 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 148 transitions. [2021-05-03 00:34:48,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-05-03 00:34:48,281 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:34:48,281 INFO L523 BasicCegarLoop]: trace histogram [48, 48, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:34:48,281 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-05-03 00:34:48,281 INFO L428 AbstractCegarLoop]: === Iteration 62 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:34:48,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:34:48,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1074268509, now seen corresponding path program 56 times [2021-05-03 00:34:48,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:34:48,281 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119898822] [2021-05-03 00:34:48,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:34:48,999 WARN L205 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 153 [2021-05-03 00:34:49,226 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_8530) (<= 5 v_main_~d~0_2438) (< v_main_~c~0_878 5)) InVars {main_~c~0=v_main_~c~0_878, main_~d~0=v_main_~d~0_2438, main_~e~0=v_main_~e~0_8530} OutVars{main_~c~0=v_main_~c~0_878, main_~d~0=v_main_~d~0_2438, main_~e~0=v_main_~e~0_8530} AuxVars[] AssignedVars[] [2021-05-03 00:34:49,228 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:34:49,261 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:49,265 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:49,285 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:34:49,316 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_8533) (< v_main_~d~0_2440 5)) InVars {main_~d~0=v_main_~d~0_2440, main_~e~0=v_main_~e~0_8533} OutVars{main_~d~0=v_main_~d~0_2440, main_~e~0=v_main_~e~0_8533} AuxVars[] AssignedVars[] [2021-05-03 00:34:49,318 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:34:49,319 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:49,322 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:49,351 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:34:49,393 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_8535 5) InVars {main_~e~0=v_main_~e~0_8535} OutVars{main_~e~0=v_main_~e~0_8535} AuxVars[] AssignedVars[] [2021-05-03 00:34:49,394 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:34:49,403 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:49,422 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:34:49,431 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:34:49,454 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_8530) (<= 5 v_main_~d~0_2438) (< v_main_~c~0_878 5)) InVars {main_~c~0=v_main_~c~0_878, main_~d~0=v_main_~d~0_2438, main_~e~0=v_main_~e~0_8530} OutVars{main_~c~0=v_main_~c~0_878, main_~d~0=v_main_~d~0_2438, main_~e~0=v_main_~e~0_8530} AuxVars[] AssignedVars[] [2021-05-03 00:34:49,456 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:34:49,491 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:49,494 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:49,515 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:34:49,547 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_8533) (< v_main_~d~0_2440 5)) InVars {main_~d~0=v_main_~d~0_2440, main_~e~0=v_main_~e~0_8533} OutVars{main_~d~0=v_main_~d~0_2440, main_~e~0=v_main_~e~0_8533} AuxVars[] AssignedVars[] [2021-05-03 00:34:49,548 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:34:49,567 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:49,571 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:49,584 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:34:49,606 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_8535 5) InVars {main_~e~0=v_main_~e~0_8535} OutVars{main_~e~0=v_main_~e~0_8535} AuxVars[] AssignedVars[] [2021-05-03 00:34:49,608 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:34:49,622 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:49,628 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:34:49,639 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:34:49,658 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:34:49,659 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:49,682 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:34:49,701 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_8530) (<= 5 v_main_~d~0_2438) (< v_main_~c~0_878 5)) InVars {main_~c~0=v_main_~c~0_878, main_~d~0=v_main_~d~0_2438, main_~e~0=v_main_~e~0_8530} OutVars{main_~c~0=v_main_~c~0_878, main_~d~0=v_main_~d~0_2438, main_~e~0=v_main_~e~0_8530} AuxVars[] AssignedVars[] [2021-05-03 00:34:49,703 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:34:49,736 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:49,740 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:49,759 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:34:49,803 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_8533) (< v_main_~d~0_2440 5)) InVars {main_~d~0=v_main_~d~0_2440, main_~e~0=v_main_~e~0_8533} OutVars{main_~d~0=v_main_~d~0_2440, main_~e~0=v_main_~e~0_8533} AuxVars[] AssignedVars[] [2021-05-03 00:34:49,804 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:34:49,805 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:49,808 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:49,836 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:34:49,858 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_8535 5) InVars {main_~e~0=v_main_~e~0_8535} OutVars{main_~e~0=v_main_~e~0_8535} AuxVars[] AssignedVars[] [2021-05-03 00:34:49,859 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:34:49,860 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:49,865 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:34:49,882 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:34:49,905 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:34:49,906 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:49,936 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:34:49,953 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:34:49,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:34:49,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:34:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:34:49,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:34:52,723 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:34:52,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [119898822] [2021-05-03 00:34:52,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [119898822] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:34:52,723 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:34:52,723 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [66] imperfect sequences [] total 66 [2021-05-03 00:34:52,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904884442] [2021-05-03 00:34:52,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 66 states [2021-05-03 00:34:52,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:34:52,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-05-03 00:34:52,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=3987, Unknown=0, NotChecked=0, Total=4290 [2021-05-03 00:34:52,725 INFO L87 Difference]: Start difference. First operand 144 states and 148 transitions. Second operand has 66 states, 66 states have (on average 2.090909090909091) internal successors, (138), 65 states have internal predecessors, (138), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:34:58,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:34:58,808 INFO L93 Difference]: Finished difference Result 175 states and 191 transitions. [2021-05-03 00:34:58,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-05-03 00:34:58,810 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.090909090909091) internal successors, (138), 65 states have internal predecessors, (138), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 141 [2021-05-03 00:34:58,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:34:58,811 INFO L225 Difference]: With dead ends: 175 [2021-05-03 00:34:58,811 INFO L226 Difference]: Without dead ends: 162 [2021-05-03 00:34:58,812 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 56 SyntacticMatches, 22 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4121 ImplicationChecksByTransitivity, 6130.8ms TimeCoverageRelationStatistics Valid=903, Invalid=15609, Unknown=0, NotChecked=0, Total=16512 [2021-05-03 00:34:58,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-05-03 00:34:58,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 146. [2021-05-03 00:34:58,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 142 states have (on average 1.0352112676056338) internal successors, (147), 142 states have internal predecessors, (147), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:34:58,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 150 transitions. [2021-05-03 00:34:58,918 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 150 transitions. Word has length 141 [2021-05-03 00:34:58,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:34:58,919 INFO L480 AbstractCegarLoop]: Abstraction has 146 states and 150 transitions. [2021-05-03 00:34:58,919 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 66 states, 66 states have (on average 2.090909090909091) internal successors, (138), 65 states have internal predecessors, (138), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:34:58,919 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 150 transitions. [2021-05-03 00:34:58,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-05-03 00:34:58,919 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:34:58,919 INFO L523 BasicCegarLoop]: trace histogram [48, 48, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:34:58,919 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-05-03 00:34:58,920 INFO L428 AbstractCegarLoop]: === Iteration 63 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:34:58,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:34:58,920 INFO L82 PathProgramCache]: Analyzing trace with hash 676891370, now seen corresponding path program 57 times [2021-05-03 00:34:58,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:34:58,920 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [160462013] [2021-05-03 00:34:58,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:34:59,622 WARN L205 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 154 [2021-05-03 00:34:59,860 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_8799) (< v_main_~c~0_906 5) (<= 5 v_main_~d~0_2511)) InVars {main_~c~0=v_main_~c~0_906, main_~d~0=v_main_~d~0_2511, main_~e~0=v_main_~e~0_8799} OutVars{main_~c~0=v_main_~c~0_906, main_~d~0=v_main_~d~0_2511, main_~e~0=v_main_~e~0_8799} AuxVars[] AssignedVars[] [2021-05-03 00:34:59,862 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:34:59,862 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:59,865 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:59,894 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:34:59,916 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_8802) (< v_main_~d~0_2513 5)) InVars {main_~d~0=v_main_~d~0_2513, main_~e~0=v_main_~e~0_8802} OutVars{main_~d~0=v_main_~d~0_2513, main_~e~0=v_main_~e~0_8802} AuxVars[] AssignedVars[] [2021-05-03 00:34:59,917 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:34:59,918 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:59,920 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:34:59,938 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:34:59,953 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_8804 5) InVars {main_~e~0=v_main_~e~0_8804} OutVars{main_~e~0=v_main_~e~0_8804} AuxVars[] AssignedVars[] [2021-05-03 00:34:59,954 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:34:59,955 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:34:59,959 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:34:59,974 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:34:59,990 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_8799) (< v_main_~c~0_906 5) (<= 5 v_main_~d~0_2511)) InVars {main_~c~0=v_main_~c~0_906, main_~d~0=v_main_~d~0_2511, main_~e~0=v_main_~e~0_8799} OutVars{main_~c~0=v_main_~c~0_906, main_~d~0=v_main_~d~0_2511, main_~e~0=v_main_~e~0_8799} AuxVars[] AssignedVars[] [2021-05-03 00:34:59,992 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:35:00,021 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:00,024 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:00,041 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:35:00,070 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_8802) (< v_main_~d~0_2513 5)) InVars {main_~d~0=v_main_~d~0_2513, main_~e~0=v_main_~e~0_8802} OutVars{main_~d~0=v_main_~d~0_2513, main_~e~0=v_main_~e~0_8802} AuxVars[] AssignedVars[] [2021-05-03 00:35:00,072 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:35:00,072 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:00,075 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:00,098 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:35:00,123 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_8804 5) InVars {main_~e~0=v_main_~e~0_8804} OutVars{main_~e~0=v_main_~e~0_8804} AuxVars[] AssignedVars[] [2021-05-03 00:35:00,124 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:35:00,131 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:00,136 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:35:00,143 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:35:00,157 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:35:00,158 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:00,177 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:35:00,194 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_8799) (< v_main_~c~0_906 5) (<= 5 v_main_~d~0_2511)) InVars {main_~c~0=v_main_~c~0_906, main_~d~0=v_main_~d~0_2511, main_~e~0=v_main_~e~0_8799} OutVars{main_~c~0=v_main_~c~0_906, main_~d~0=v_main_~d~0_2511, main_~e~0=v_main_~e~0_8799} AuxVars[] AssignedVars[] [2021-05-03 00:35:00,195 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:35:00,196 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:00,199 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:00,238 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:35:00,267 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_8802) (< v_main_~d~0_2513 5)) InVars {main_~d~0=v_main_~d~0_2513, main_~e~0=v_main_~e~0_8802} OutVars{main_~d~0=v_main_~d~0_2513, main_~e~0=v_main_~e~0_8802} AuxVars[] AssignedVars[] [2021-05-03 00:35:00,268 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:35:00,285 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:00,288 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:00,299 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:35:00,319 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_8804 5) InVars {main_~e~0=v_main_~e~0_8804} OutVars{main_~e~0=v_main_~e~0_8804} AuxVars[] AssignedVars[] [2021-05-03 00:35:00,320 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:35:00,327 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:00,332 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:35:00,338 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:35:00,361 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:35:00,362 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:00,388 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:35:00,405 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:35:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:35:00,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:35:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:35:00,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:35:03,128 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:35:03,128 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [160462013] [2021-05-03 00:35:03,128 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [160462013] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:35:03,128 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:35:03,129 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [67] imperfect sequences [] total 67 [2021-05-03 00:35:03,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256019012] [2021-05-03 00:35:03,129 INFO L460 AbstractCegarLoop]: Interpolant automaton has 67 states [2021-05-03 00:35:03,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:35:03,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-05-03 00:35:03,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=4115, Unknown=0, NotChecked=0, Total=4422 [2021-05-03 00:35:03,130 INFO L87 Difference]: Start difference. First operand 146 states and 150 transitions. Second operand has 67 states, 67 states have (on average 2.1044776119402986) internal successors, (141), 66 states have internal predecessors, (141), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:35:09,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:35:09,619 INFO L93 Difference]: Finished difference Result 177 states and 193 transitions. [2021-05-03 00:35:09,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-05-03 00:35:09,619 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 2.1044776119402986) internal successors, (141), 66 states have internal predecessors, (141), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2021-05-03 00:35:09,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:35:09,620 INFO L225 Difference]: With dead ends: 177 [2021-05-03 00:35:09,620 INFO L226 Difference]: Without dead ends: 164 [2021-05-03 00:35:09,621 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 59 SyntacticMatches, 21 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4197 ImplicationChecksByTransitivity, 5926.9ms TimeCoverageRelationStatistics Valid=915, Invalid=16115, Unknown=0, NotChecked=0, Total=17030 [2021-05-03 00:35:09,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-05-03 00:35:09,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 147. [2021-05-03 00:35:09,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 143 states have (on average 1.034965034965035) internal successors, (148), 143 states have internal predecessors, (148), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:35:09,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 151 transitions. [2021-05-03 00:35:09,759 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 151 transitions. Word has length 144 [2021-05-03 00:35:09,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:35:09,759 INFO L480 AbstractCegarLoop]: Abstraction has 147 states and 151 transitions. [2021-05-03 00:35:09,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 67 states, 67 states have (on average 2.1044776119402986) internal successors, (141), 66 states have internal predecessors, (141), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:35:09,760 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 151 transitions. [2021-05-03 00:35:09,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-05-03 00:35:09,760 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:35:09,760 INFO L523 BasicCegarLoop]: trace histogram [49, 49, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:35:09,760 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-05-03 00:35:09,760 INFO L428 AbstractCegarLoop]: === Iteration 64 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:35:09,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:35:09,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1408554296, now seen corresponding path program 58 times [2021-05-03 00:35:09,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:35:09,761 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1187273293] [2021-05-03 00:35:09,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:35:10,461 WARN L205 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 154 [2021-05-03 00:35:10,633 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_934 5) (<= 5 v_main_~d~0_2586) (<= 5 v_main_~e~0_9073)) InVars {main_~c~0=v_main_~c~0_934, main_~d~0=v_main_~d~0_2586, main_~e~0=v_main_~e~0_9073} OutVars{main_~c~0=v_main_~c~0_934, main_~d~0=v_main_~d~0_2586, main_~e~0=v_main_~e~0_9073} AuxVars[] AssignedVars[] [2021-05-03 00:35:10,650 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:35:10,651 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:10,654 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:10,683 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:35:10,705 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_9076) (< v_main_~d~0_2588 5)) InVars {main_~d~0=v_main_~d~0_2588, main_~e~0=v_main_~e~0_9076} OutVars{main_~d~0=v_main_~d~0_2588, main_~e~0=v_main_~e~0_9076} AuxVars[] AssignedVars[] [2021-05-03 00:35:10,706 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:35:10,707 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:10,709 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:10,729 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:35:10,745 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_9078 5) InVars {main_~e~0=v_main_~e~0_9078} OutVars{main_~e~0=v_main_~e~0_9078} AuxVars[] AssignedVars[] [2021-05-03 00:35:10,746 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:35:10,752 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:10,756 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:35:10,761 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:35:10,774 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_934 5) (<= 5 v_main_~d~0_2586) (<= 5 v_main_~e~0_9073)) InVars {main_~c~0=v_main_~c~0_934, main_~d~0=v_main_~d~0_2586, main_~e~0=v_main_~e~0_9073} OutVars{main_~c~0=v_main_~c~0_934, main_~d~0=v_main_~d~0_2586, main_~e~0=v_main_~e~0_9073} AuxVars[] AssignedVars[] [2021-05-03 00:35:10,775 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:35:10,776 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:10,778 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:10,808 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:35:10,843 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_9076) (< v_main_~d~0_2588 5)) InVars {main_~d~0=v_main_~d~0_2588, main_~e~0=v_main_~e~0_9076} OutVars{main_~d~0=v_main_~d~0_2588, main_~e~0=v_main_~e~0_9076} AuxVars[] AssignedVars[] [2021-05-03 00:35:10,844 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:35:10,844 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:10,847 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:10,865 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:35:10,895 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_9078 5) InVars {main_~e~0=v_main_~e~0_9078} OutVars{main_~e~0=v_main_~e~0_9078} AuxVars[] AssignedVars[] [2021-05-03 00:35:10,896 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:35:10,902 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:10,906 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:35:10,911 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:35:10,921 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:35:10,922 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:10,936 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:35:10,949 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_934 5) (<= 5 v_main_~d~0_2586) (<= 5 v_main_~e~0_9073)) InVars {main_~c~0=v_main_~c~0_934, main_~d~0=v_main_~d~0_2586, main_~e~0=v_main_~e~0_9073} OutVars{main_~c~0=v_main_~c~0_934, main_~d~0=v_main_~d~0_2586, main_~e~0=v_main_~e~0_9073} AuxVars[] AssignedVars[] [2021-05-03 00:35:10,951 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:35:10,974 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:10,976 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:10,989 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:35:11,012 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_9076) (< v_main_~d~0_2588 5)) InVars {main_~d~0=v_main_~d~0_2588, main_~e~0=v_main_~e~0_9076} OutVars{main_~d~0=v_main_~d~0_2588, main_~e~0=v_main_~e~0_9076} AuxVars[] AssignedVars[] [2021-05-03 00:35:11,013 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:35:11,028 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:11,030 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:11,038 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:35:11,053 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_9078 5) InVars {main_~e~0=v_main_~e~0_9078} OutVars{main_~e~0=v_main_~e~0_9078} AuxVars[] AssignedVars[] [2021-05-03 00:35:11,054 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:35:11,061 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:11,065 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:35:11,071 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:35:11,090 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:35:11,091 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:11,111 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:35:11,122 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:35:11,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:35:11,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:35:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:35:11,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:35:13,087 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:35:13,088 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1187273293] [2021-05-03 00:35:13,089 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1187273293] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:35:13,089 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:35:13,089 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [68] imperfect sequences [] total 68 [2021-05-03 00:35:13,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657966509] [2021-05-03 00:35:13,089 INFO L460 AbstractCegarLoop]: Interpolant automaton has 68 states [2021-05-03 00:35:13,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:35:13,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2021-05-03 00:35:13,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=311, Invalid=4245, Unknown=0, NotChecked=0, Total=4556 [2021-05-03 00:35:13,090 INFO L87 Difference]: Start difference. First operand 147 states and 151 transitions. Second operand has 68 states, 68 states have (on average 2.1029411764705883) internal successors, (143), 67 states have internal predecessors, (143), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:35:19,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:35:19,460 INFO L93 Difference]: Finished difference Result 179 states and 195 transitions. [2021-05-03 00:35:19,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-05-03 00:35:19,461 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 2.1029411764705883) internal successors, (143), 67 states have internal predecessors, (143), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2021-05-03 00:35:19,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:35:19,462 INFO L225 Difference]: With dead ends: 179 [2021-05-03 00:35:19,462 INFO L226 Difference]: Without dead ends: 166 [2021-05-03 00:35:19,463 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 61 SyntacticMatches, 20 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4422 ImplicationChecksByTransitivity, 5480.5ms TimeCoverageRelationStatistics Valid=927, Invalid=16629, Unknown=0, NotChecked=0, Total=17556 [2021-05-03 00:35:19,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-05-03 00:35:19,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 149. [2021-05-03 00:35:19,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 145 states have (on average 1.0344827586206897) internal successors, (150), 145 states have internal predecessors, (150), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:35:19,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 153 transitions. [2021-05-03 00:35:19,577 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 153 transitions. Word has length 146 [2021-05-03 00:35:19,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:35:19,577 INFO L480 AbstractCegarLoop]: Abstraction has 149 states and 153 transitions. [2021-05-03 00:35:19,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 68 states, 68 states have (on average 2.1029411764705883) internal successors, (143), 67 states have internal predecessors, (143), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:35:19,577 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 153 transitions. [2021-05-03 00:35:19,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-05-03 00:35:19,577 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:35:19,578 INFO L523 BasicCegarLoop]: trace histogram [50, 50, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:35:19,578 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-05-03 00:35:19,578 INFO L428 AbstractCegarLoop]: === Iteration 65 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:35:19,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:35:19,578 INFO L82 PathProgramCache]: Analyzing trace with hash 227887910, now seen corresponding path program 59 times [2021-05-03 00:35:19,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:35:19,578 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [97518394] [2021-05-03 00:35:19,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:35:20,276 WARN L205 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 158 [2021-05-03 00:35:20,527 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_962 5) (<= 5 v_main_~d~0_2661) (<= 5 v_main_~e~0_9352)) InVars {main_~c~0=v_main_~c~0_962, main_~d~0=v_main_~d~0_2661, main_~e~0=v_main_~e~0_9352} OutVars{main_~c~0=v_main_~c~0_962, main_~d~0=v_main_~d~0_2661, main_~e~0=v_main_~e~0_9352} AuxVars[] AssignedVars[] [2021-05-03 00:35:20,528 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:35:20,529 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:20,532 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:20,573 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:35:20,604 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_2663 5) (<= 5 v_main_~e~0_9355)) InVars {main_~d~0=v_main_~d~0_2663, main_~e~0=v_main_~e~0_9355} OutVars{main_~d~0=v_main_~d~0_2663, main_~e~0=v_main_~e~0_9355} AuxVars[] AssignedVars[] [2021-05-03 00:35:20,606 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:35:20,622 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:20,625 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:20,636 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:35:20,658 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_9357 5) InVars {main_~e~0=v_main_~e~0_9357} OutVars{main_~e~0=v_main_~e~0_9357} AuxVars[] AssignedVars[] [2021-05-03 00:35:20,659 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:35:20,666 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:20,671 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:35:20,678 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:35:20,695 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_962 5) (<= 5 v_main_~d~0_2661) (<= 5 v_main_~e~0_9352)) InVars {main_~c~0=v_main_~c~0_962, main_~d~0=v_main_~d~0_2661, main_~e~0=v_main_~e~0_9352} OutVars{main_~c~0=v_main_~c~0_962, main_~d~0=v_main_~d~0_2661, main_~e~0=v_main_~e~0_9352} AuxVars[] AssignedVars[] [2021-05-03 00:35:20,696 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:35:20,697 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:20,700 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:20,742 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:35:20,773 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_2663 5) (<= 5 v_main_~e~0_9355)) InVars {main_~d~0=v_main_~d~0_2663, main_~e~0=v_main_~e~0_9355} OutVars{main_~d~0=v_main_~d~0_2663, main_~e~0=v_main_~e~0_9355} AuxVars[] AssignedVars[] [2021-05-03 00:35:20,774 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:35:20,775 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:20,778 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:20,803 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:35:20,825 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_9357 5) InVars {main_~e~0=v_main_~e~0_9357} OutVars{main_~e~0=v_main_~e~0_9357} AuxVars[] AssignedVars[] [2021-05-03 00:35:20,826 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:35:20,826 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:20,831 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:35:20,859 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:35:20,873 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:35:20,874 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:20,895 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:35:20,912 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_962 5) (<= 5 v_main_~d~0_2661) (<= 5 v_main_~e~0_9352)) InVars {main_~c~0=v_main_~c~0_962, main_~d~0=v_main_~d~0_2661, main_~e~0=v_main_~e~0_9352} OutVars{main_~c~0=v_main_~c~0_962, main_~d~0=v_main_~d~0_2661, main_~e~0=v_main_~e~0_9352} AuxVars[] AssignedVars[] [2021-05-03 00:35:20,914 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:35:20,943 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:20,947 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:20,965 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:35:20,997 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_2663 5) (<= 5 v_main_~e~0_9355)) InVars {main_~d~0=v_main_~d~0_2663, main_~e~0=v_main_~e~0_9355} OutVars{main_~d~0=v_main_~d~0_2663, main_~e~0=v_main_~e~0_9355} AuxVars[] AssignedVars[] [2021-05-03 00:35:20,998 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:35:20,999 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:21,002 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:21,028 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:35:21,050 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_9357 5) InVars {main_~e~0=v_main_~e~0_9357} OutVars{main_~e~0=v_main_~e~0_9357} AuxVars[] AssignedVars[] [2021-05-03 00:35:21,051 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:35:21,059 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:21,064 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:35:21,072 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:35:21,096 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:35:21,097 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:21,125 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:35:21,142 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:35:21,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:35:21,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:35:21,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:35:21,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:35:24,057 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:35:24,057 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [97518394] [2021-05-03 00:35:24,057 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [97518394] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:35:24,057 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:35:24,057 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [69] imperfect sequences [] total 69 [2021-05-03 00:35:24,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836020347] [2021-05-03 00:35:24,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 69 states [2021-05-03 00:35:24,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:35:24,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-05-03 00:35:24,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=315, Invalid=4377, Unknown=0, NotChecked=0, Total=4692 [2021-05-03 00:35:24,059 INFO L87 Difference]: Start difference. First operand 149 states and 153 transitions. Second operand has 69 states, 69 states have (on average 2.101449275362319) internal successors, (145), 68 states have internal predecessors, (145), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:35:30,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:35:30,384 INFO L93 Difference]: Finished difference Result 181 states and 197 transitions. [2021-05-03 00:35:30,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-05-03 00:35:30,385 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 2.101449275362319) internal successors, (145), 68 states have internal predecessors, (145), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2021-05-03 00:35:30,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:35:30,386 INFO L225 Difference]: With dead ends: 181 [2021-05-03 00:35:30,386 INFO L226 Difference]: Without dead ends: 168 [2021-05-03 00:35:30,387 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 64 SyntacticMatches, 18 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4523 ImplicationChecksByTransitivity, 6317.1ms TimeCoverageRelationStatistics Valid=939, Invalid=17151, Unknown=0, NotChecked=0, Total=18090 [2021-05-03 00:35:30,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-05-03 00:35:30,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 151. [2021-05-03 00:35:30,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 147 states have (on average 1.034013605442177) internal successors, (152), 147 states have internal predecessors, (152), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:35:30,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 155 transitions. [2021-05-03 00:35:30,529 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 155 transitions. Word has length 148 [2021-05-03 00:35:30,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:35:30,529 INFO L480 AbstractCegarLoop]: Abstraction has 151 states and 155 transitions. [2021-05-03 00:35:30,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 69 states, 69 states have (on average 2.101449275362319) internal successors, (145), 68 states have internal predecessors, (145), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:35:30,529 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 155 transitions. [2021-05-03 00:35:30,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-05-03 00:35:30,530 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:35:30,530 INFO L523 BasicCegarLoop]: trace histogram [51, 51, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:35:30,530 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-05-03 00:35:30,530 INFO L428 AbstractCegarLoop]: === Iteration 66 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:35:30,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:35:30,530 INFO L82 PathProgramCache]: Analyzing trace with hash 890817540, now seen corresponding path program 60 times [2021-05-03 00:35:30,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:35:30,530 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1797241735] [2021-05-03 00:35:30,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:35:31,293 WARN L205 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 154 [2021-05-03 00:35:31,530 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_9636) (<= 5 v_main_~d~0_2736) (< v_main_~c~0_990 5)) InVars {main_~c~0=v_main_~c~0_990, main_~d~0=v_main_~d~0_2736, main_~e~0=v_main_~e~0_9636} OutVars{main_~c~0=v_main_~c~0_990, main_~d~0=v_main_~d~0_2736, main_~e~0=v_main_~e~0_9636} AuxVars[] AssignedVars[] [2021-05-03 00:35:31,532 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:35:31,567 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:31,570 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:31,591 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:35:31,625 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_9639) (< v_main_~d~0_2738 5)) InVars {main_~d~0=v_main_~d~0_2738, main_~e~0=v_main_~e~0_9639} OutVars{main_~d~0=v_main_~d~0_2738, main_~e~0=v_main_~e~0_9639} AuxVars[] AssignedVars[] [2021-05-03 00:35:31,626 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:35:31,647 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:31,650 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:31,664 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:35:31,686 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_9641 5) InVars {main_~e~0=v_main_~e~0_9641} OutVars{main_~e~0=v_main_~e~0_9641} AuxVars[] AssignedVars[] [2021-05-03 00:35:31,688 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:35:31,697 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:31,703 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:35:31,712 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:35:31,729 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_9636) (<= 5 v_main_~d~0_2736) (< v_main_~c~0_990 5)) InVars {main_~c~0=v_main_~c~0_990, main_~d~0=v_main_~d~0_2736, main_~e~0=v_main_~e~0_9636} OutVars{main_~c~0=v_main_~c~0_990, main_~d~0=v_main_~d~0_2736, main_~e~0=v_main_~e~0_9636} AuxVars[] AssignedVars[] [2021-05-03 00:35:31,731 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:35:31,765 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:31,768 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:31,789 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:35:31,823 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_9639) (< v_main_~d~0_2738 5)) InVars {main_~d~0=v_main_~d~0_2738, main_~e~0=v_main_~e~0_9639} OutVars{main_~d~0=v_main_~d~0_2738, main_~e~0=v_main_~e~0_9639} AuxVars[] AssignedVars[] [2021-05-03 00:35:31,824 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:35:31,825 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:31,828 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:31,859 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:35:31,882 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_9641 5) InVars {main_~e~0=v_main_~e~0_9641} OutVars{main_~e~0=v_main_~e~0_9641} AuxVars[] AssignedVars[] [2021-05-03 00:35:31,883 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:35:31,883 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:31,889 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:35:31,906 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:35:31,921 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:35:31,922 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:31,946 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:35:31,965 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_9636) (<= 5 v_main_~d~0_2736) (< v_main_~c~0_990 5)) InVars {main_~c~0=v_main_~c~0_990, main_~d~0=v_main_~d~0_2736, main_~e~0=v_main_~e~0_9636} OutVars{main_~c~0=v_main_~c~0_990, main_~d~0=v_main_~d~0_2736, main_~e~0=v_main_~e~0_9636} AuxVars[] AssignedVars[] [2021-05-03 00:35:31,967 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:35:32,002 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:32,006 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:32,030 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:35:32,063 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_9639) (< v_main_~d~0_2738 5)) InVars {main_~d~0=v_main_~d~0_2738, main_~e~0=v_main_~e~0_9639} OutVars{main_~d~0=v_main_~d~0_2738, main_~e~0=v_main_~e~0_9639} AuxVars[] AssignedVars[] [2021-05-03 00:35:32,065 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:35:32,066 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:32,069 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:32,100 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:35:32,123 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_9641 5) InVars {main_~e~0=v_main_~e~0_9641} OutVars{main_~e~0=v_main_~e~0_9641} AuxVars[] AssignedVars[] [2021-05-03 00:35:32,125 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:35:32,134 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:32,140 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:35:32,148 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:35:32,174 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:35:32,175 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:32,208 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:35:32,226 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:35:32,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:35:32,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:35:32,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:35:32,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:35:35,395 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:35:35,395 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1797241735] [2021-05-03 00:35:35,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1797241735] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:35:35,396 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:35:35,396 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [70] imperfect sequences [] total 70 [2021-05-03 00:35:35,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601625155] [2021-05-03 00:35:35,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 70 states [2021-05-03 00:35:35,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:35:35,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2021-05-03 00:35:35,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=4511, Unknown=0, NotChecked=0, Total=4830 [2021-05-03 00:35:35,397 INFO L87 Difference]: Start difference. First operand 151 states and 155 transitions. Second operand has 70 states, 70 states have (on average 2.1) internal successors, (147), 69 states have internal predecessors, (147), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:35:43,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:35:43,189 INFO L93 Difference]: Finished difference Result 183 states and 199 transitions. [2021-05-03 00:35:43,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-05-03 00:35:43,190 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 2.1) internal successors, (147), 69 states have internal predecessors, (147), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2021-05-03 00:35:43,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:35:43,191 INFO L225 Difference]: With dead ends: 183 [2021-05-03 00:35:43,191 INFO L226 Difference]: Without dead ends: 170 [2021-05-03 00:35:43,192 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 62 SyntacticMatches, 21 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4727 ImplicationChecksByTransitivity, 6972.5ms TimeCoverageRelationStatistics Valid=951, Invalid=17681, Unknown=0, NotChecked=0, Total=18632 [2021-05-03 00:35:43,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-05-03 00:35:43,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 153. [2021-05-03 00:35:43,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 149 states have (on average 1.0335570469798658) internal successors, (154), 149 states have internal predecessors, (154), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:35:43,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 157 transitions. [2021-05-03 00:35:43,311 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 157 transitions. Word has length 150 [2021-05-03 00:35:43,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:35:43,311 INFO L480 AbstractCegarLoop]: Abstraction has 153 states and 157 transitions. [2021-05-03 00:35:43,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 70 states, 70 states have (on average 2.1) internal successors, (147), 69 states have internal predecessors, (147), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:35:43,311 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 157 transitions. [2021-05-03 00:35:43,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-05-03 00:35:43,312 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:35:43,312 INFO L523 BasicCegarLoop]: trace histogram [52, 52, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:35:43,312 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-05-03 00:35:43,312 INFO L428 AbstractCegarLoop]: === Iteration 67 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:35:43,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:35:43,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1983935134, now seen corresponding path program 61 times [2021-05-03 00:35:43,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:35:43,313 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808695469] [2021-05-03 00:35:43,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:35:44,084 WARN L205 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 157 [2021-05-03 00:35:44,335 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1018 5) (<= 5 v_main_~e~0_9925) (<= 5 v_main_~d~0_2811)) InVars {main_~c~0=v_main_~c~0_1018, main_~d~0=v_main_~d~0_2811, main_~e~0=v_main_~e~0_9925} OutVars{main_~c~0=v_main_~c~0_1018, main_~d~0=v_main_~d~0_2811, main_~e~0=v_main_~e~0_9925} AuxVars[] AssignedVars[] [2021-05-03 00:35:44,337 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:35:44,338 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:44,342 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:44,392 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:35:44,427 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_9928) (< v_main_~d~0_2813 5)) InVars {main_~d~0=v_main_~d~0_2813, main_~e~0=v_main_~e~0_9928} OutVars{main_~d~0=v_main_~d~0_2813, main_~e~0=v_main_~e~0_9928} AuxVars[] AssignedVars[] [2021-05-03 00:35:44,429 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:35:44,430 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:44,433 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:44,464 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:35:44,489 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_9930 5) InVars {main_~e~0=v_main_~e~0_9930} OutVars{main_~e~0=v_main_~e~0_9930} AuxVars[] AssignedVars[] [2021-05-03 00:35:44,490 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:35:44,491 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:44,496 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:35:44,514 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:35:44,532 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1018 5) (<= 5 v_main_~e~0_9925) (<= 5 v_main_~d~0_2811)) InVars {main_~c~0=v_main_~c~0_1018, main_~d~0=v_main_~d~0_2811, main_~e~0=v_main_~e~0_9925} OutVars{main_~c~0=v_main_~c~0_1018, main_~d~0=v_main_~d~0_2811, main_~e~0=v_main_~e~0_9925} AuxVars[] AssignedVars[] [2021-05-03 00:35:44,534 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:35:44,569 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:44,572 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:44,593 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:35:44,628 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_9928) (< v_main_~d~0_2813 5)) InVars {main_~d~0=v_main_~d~0_2813, main_~e~0=v_main_~e~0_9928} OutVars{main_~d~0=v_main_~d~0_2813, main_~e~0=v_main_~e~0_9928} AuxVars[] AssignedVars[] [2021-05-03 00:35:44,630 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:35:44,651 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:44,655 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:44,669 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:35:44,693 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_9930 5) InVars {main_~e~0=v_main_~e~0_9930} OutVars{main_~e~0=v_main_~e~0_9930} AuxVars[] AssignedVars[] [2021-05-03 00:35:44,694 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:35:44,695 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:44,701 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:35:44,720 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:35:44,736 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:35:44,737 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:44,762 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:35:44,781 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1018 5) (<= 5 v_main_~e~0_9925) (<= 5 v_main_~d~0_2811)) InVars {main_~c~0=v_main_~c~0_1018, main_~d~0=v_main_~d~0_2811, main_~e~0=v_main_~e~0_9925} OutVars{main_~c~0=v_main_~c~0_1018, main_~d~0=v_main_~d~0_2811, main_~e~0=v_main_~e~0_9925} AuxVars[] AssignedVars[] [2021-05-03 00:35:44,783 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:35:44,820 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:44,824 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:44,848 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:35:44,883 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_9928) (< v_main_~d~0_2813 5)) InVars {main_~d~0=v_main_~d~0_2813, main_~e~0=v_main_~e~0_9928} OutVars{main_~d~0=v_main_~d~0_2813, main_~e~0=v_main_~e~0_9928} AuxVars[] AssignedVars[] [2021-05-03 00:35:44,884 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:35:44,908 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:44,912 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:44,926 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:35:44,952 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_9930 5) InVars {main_~e~0=v_main_~e~0_9930} OutVars{main_~e~0=v_main_~e~0_9930} AuxVars[] AssignedVars[] [2021-05-03 00:35:44,953 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:35:44,963 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:44,969 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:35:44,977 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:35:45,021 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:35:45,022 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:45,058 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:35:45,076 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:35:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:35:45,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:35:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:35:45,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:35:48,296 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:35:48,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808695469] [2021-05-03 00:35:48,296 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1808695469] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:35:48,297 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:35:48,297 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [71] imperfect sequences [] total 71 [2021-05-03 00:35:48,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658306031] [2021-05-03 00:35:48,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 71 states [2021-05-03 00:35:48,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:35:48,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2021-05-03 00:35:48,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=4647, Unknown=0, NotChecked=0, Total=4970 [2021-05-03 00:35:48,298 INFO L87 Difference]: Start difference. First operand 153 states and 157 transitions. Second operand has 71 states, 71 states have (on average 2.0985915492957745) internal successors, (149), 70 states have internal predecessors, (149), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:35:56,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:35:56,044 INFO L93 Difference]: Finished difference Result 185 states and 201 transitions. [2021-05-03 00:35:56,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-05-03 00:35:56,044 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 2.0985915492957745) internal successors, (149), 70 states have internal predecessors, (149), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 152 [2021-05-03 00:35:56,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:35:56,045 INFO L225 Difference]: With dead ends: 185 [2021-05-03 00:35:56,045 INFO L226 Difference]: Without dead ends: 172 [2021-05-03 00:35:56,046 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 63 SyntacticMatches, 21 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4918 ImplicationChecksByTransitivity, 7234.9ms TimeCoverageRelationStatistics Valid=963, Invalid=18219, Unknown=0, NotChecked=0, Total=19182 [2021-05-03 00:35:56,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-05-03 00:35:56,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 155. [2021-05-03 00:35:56,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 151 states have (on average 1.033112582781457) internal successors, (156), 151 states have internal predecessors, (156), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:35:56,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 159 transitions. [2021-05-03 00:35:56,168 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 159 transitions. Word has length 152 [2021-05-03 00:35:56,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:35:56,168 INFO L480 AbstractCegarLoop]: Abstraction has 155 states and 159 transitions. [2021-05-03 00:35:56,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 71 states, 71 states have (on average 2.0985915492957745) internal successors, (149), 70 states have internal predecessors, (149), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:35:56,169 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 159 transitions. [2021-05-03 00:35:56,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-05-03 00:35:56,169 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:35:56,169 INFO L523 BasicCegarLoop]: trace histogram [53, 53, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:35:56,169 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-05-03 00:35:56,170 INFO L428 AbstractCegarLoop]: === Iteration 68 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:35:56,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:35:56,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1337683776, now seen corresponding path program 62 times [2021-05-03 00:35:56,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:35:56,170 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [582208137] [2021-05-03 00:35:56,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:35:56,927 WARN L205 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 155 [2021-05-03 00:35:57,183 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_10219) (< v_main_~c~0_1046 5) (<= 5 v_main_~d~0_2886)) InVars {main_~c~0=v_main_~c~0_1046, main_~d~0=v_main_~d~0_2886, main_~e~0=v_main_~e~0_10219} OutVars{main_~c~0=v_main_~c~0_1046, main_~d~0=v_main_~d~0_2886, main_~e~0=v_main_~e~0_10219} AuxVars[] AssignedVars[] [2021-05-03 00:35:57,189 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:35:57,190 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:57,193 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:57,237 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:35:57,271 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_2888 5) (<= 5 v_main_~e~0_10222)) InVars {main_~d~0=v_main_~d~0_2888, main_~e~0=v_main_~e~0_10222} OutVars{main_~d~0=v_main_~d~0_2888, main_~e~0=v_main_~e~0_10222} AuxVars[] AssignedVars[] [2021-05-03 00:35:57,272 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:35:57,273 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:57,276 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:57,303 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:35:57,326 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_10224 5) InVars {main_~e~0=v_main_~e~0_10224} OutVars{main_~e~0=v_main_~e~0_10224} AuxVars[] AssignedVars[] [2021-05-03 00:35:57,327 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:35:57,336 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:57,342 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:35:57,350 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:35:57,370 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_10219) (< v_main_~c~0_1046 5) (<= 5 v_main_~d~0_2886)) InVars {main_~c~0=v_main_~c~0_1046, main_~d~0=v_main_~d~0_2886, main_~e~0=v_main_~e~0_10219} OutVars{main_~c~0=v_main_~c~0_1046, main_~d~0=v_main_~d~0_2886, main_~e~0=v_main_~e~0_10219} AuxVars[] AssignedVars[] [2021-05-03 00:35:57,372 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:35:57,406 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:57,410 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:57,430 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:35:57,463 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_2888 5) (<= 5 v_main_~e~0_10222)) InVars {main_~d~0=v_main_~d~0_2888, main_~e~0=v_main_~e~0_10222} OutVars{main_~d~0=v_main_~d~0_2888, main_~e~0=v_main_~e~0_10222} AuxVars[] AssignedVars[] [2021-05-03 00:35:57,464 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:35:57,465 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:57,468 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:57,497 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:35:57,520 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_10224 5) InVars {main_~e~0=v_main_~e~0_10224} OutVars{main_~e~0=v_main_~e~0_10224} AuxVars[] AssignedVars[] [2021-05-03 00:35:57,521 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:35:57,530 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:57,537 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:35:57,546 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:35:57,562 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:35:57,563 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:57,586 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:35:57,622 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_10219) (< v_main_~c~0_1046 5) (<= 5 v_main_~d~0_2886)) InVars {main_~c~0=v_main_~c~0_1046, main_~d~0=v_main_~d~0_2886, main_~e~0=v_main_~e~0_10219} OutVars{main_~c~0=v_main_~c~0_1046, main_~d~0=v_main_~d~0_2886, main_~e~0=v_main_~e~0_10219} AuxVars[] AssignedVars[] [2021-05-03 00:35:57,624 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:35:57,625 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:57,633 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:57,672 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:35:57,698 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_2888 5) (<= 5 v_main_~e~0_10222)) InVars {main_~d~0=v_main_~d~0_2888, main_~e~0=v_main_~e~0_10222} OutVars{main_~d~0=v_main_~d~0_2888, main_~e~0=v_main_~e~0_10222} AuxVars[] AssignedVars[] [2021-05-03 00:35:57,700 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:35:57,718 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:57,721 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:35:57,731 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:35:57,748 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_10224 5) InVars {main_~e~0=v_main_~e~0_10224} OutVars{main_~e~0=v_main_~e~0_10224} AuxVars[] AssignedVars[] [2021-05-03 00:35:57,750 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:35:57,750 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:57,755 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:35:57,770 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:35:57,794 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:35:57,795 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:35:57,818 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:35:57,831 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:35:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:35:57,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:35:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:35:57,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:36:01,105 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:36:01,105 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [582208137] [2021-05-03 00:36:01,106 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [582208137] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:36:01,106 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:36:01,106 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [72] imperfect sequences [] total 72 [2021-05-03 00:36:01,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491670248] [2021-05-03 00:36:01,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 72 states [2021-05-03 00:36:01,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:36:01,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2021-05-03 00:36:01,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=327, Invalid=4785, Unknown=0, NotChecked=0, Total=5112 [2021-05-03 00:36:01,107 INFO L87 Difference]: Start difference. First operand 155 states and 159 transitions. Second operand has 72 states, 72 states have (on average 2.0972222222222223) internal successors, (151), 71 states have internal predecessors, (151), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:36:09,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:36:09,002 INFO L93 Difference]: Finished difference Result 189 states and 206 transitions. [2021-05-03 00:36:09,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-05-03 00:36:09,003 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 2.0972222222222223) internal successors, (151), 71 states have internal predecessors, (151), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2021-05-03 00:36:09,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:36:09,004 INFO L225 Difference]: With dead ends: 189 [2021-05-03 00:36:09,004 INFO L226 Difference]: Without dead ends: 176 [2021-05-03 00:36:09,004 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 70 SyntacticMatches, 15 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4964 ImplicationChecksByTransitivity, 7357.1ms TimeCoverageRelationStatistics Valid=975, Invalid=18765, Unknown=0, NotChecked=0, Total=19740 [2021-05-03 00:36:09,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-05-03 00:36:09,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 159. [2021-05-03 00:36:09,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 155 states have (on average 1.032258064516129) internal successors, (160), 155 states have internal predecessors, (160), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:36:09,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 163 transitions. [2021-05-03 00:36:09,143 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 163 transitions. Word has length 154 [2021-05-03 00:36:09,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:36:09,143 INFO L480 AbstractCegarLoop]: Abstraction has 159 states and 163 transitions. [2021-05-03 00:36:09,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 72 states, 72 states have (on average 2.0972222222222223) internal successors, (151), 71 states have internal predecessors, (151), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:36:09,143 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 163 transitions. [2021-05-03 00:36:09,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-05-03 00:36:09,144 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:36:09,144 INFO L523 BasicCegarLoop]: trace histogram [54, 54, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:36:09,144 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-05-03 00:36:09,144 INFO L428 AbstractCegarLoop]: === Iteration 69 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:36:09,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:36:09,161 INFO L82 PathProgramCache]: Analyzing trace with hash -2042211938, now seen corresponding path program 63 times [2021-05-03 00:36:09,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:36:09,161 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [709190489] [2021-05-03 00:36:09,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:36:09,952 WARN L205 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 155 [2021-05-03 00:36:10,204 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_10511) (<= 5 v_main_~d~0_2959) (< v_main_~c~0_1074 5)) InVars {main_~c~0=v_main_~c~0_1074, main_~d~0=v_main_~d~0_2959, main_~e~0=v_main_~e~0_10511} OutVars{main_~c~0=v_main_~c~0_1074, main_~d~0=v_main_~d~0_2959, main_~e~0=v_main_~e~0_10511} AuxVars[] AssignedVars[] [2021-05-03 00:36:10,206 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:36:10,208 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:10,211 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:10,263 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:36:10,297 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_10514) (< v_main_~d~0_2961 5)) InVars {main_~d~0=v_main_~d~0_2961, main_~e~0=v_main_~e~0_10514} OutVars{main_~d~0=v_main_~d~0_2961, main_~e~0=v_main_~e~0_10514} AuxVars[] AssignedVars[] [2021-05-03 00:36:10,298 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:36:10,299 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:10,303 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:10,333 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:36:10,358 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_10516 5) InVars {main_~e~0=v_main_~e~0_10516} OutVars{main_~e~0=v_main_~e~0_10516} AuxVars[] AssignedVars[] [2021-05-03 00:36:10,359 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:36:10,369 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:10,376 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:36:10,386 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:36:10,406 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_10511) (<= 5 v_main_~d~0_2959) (< v_main_~c~0_1074 5)) InVars {main_~c~0=v_main_~c~0_1074, main_~d~0=v_main_~d~0_2959, main_~e~0=v_main_~e~0_10511} OutVars{main_~c~0=v_main_~c~0_1074, main_~d~0=v_main_~d~0_2959, main_~e~0=v_main_~e~0_10511} AuxVars[] AssignedVars[] [2021-05-03 00:36:10,407 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:36:10,408 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:10,412 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:10,464 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:36:10,499 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_10514) (< v_main_~d~0_2961 5)) InVars {main_~d~0=v_main_~d~0_2961, main_~e~0=v_main_~e~0_10514} OutVars{main_~d~0=v_main_~d~0_2961, main_~e~0=v_main_~e~0_10514} AuxVars[] AssignedVars[] [2021-05-03 00:36:10,501 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:36:10,502 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:10,505 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:10,536 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:36:10,560 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_10516 5) InVars {main_~e~0=v_main_~e~0_10516} OutVars{main_~e~0=v_main_~e~0_10516} AuxVars[] AssignedVars[] [2021-05-03 00:36:10,561 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:36:10,571 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:10,578 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:36:10,586 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:36:10,602 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:36:10,603 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:10,627 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:36:10,647 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_10511) (<= 5 v_main_~d~0_2959) (< v_main_~c~0_1074 5)) InVars {main_~c~0=v_main_~c~0_1074, main_~d~0=v_main_~d~0_2959, main_~e~0=v_main_~e~0_10511} OutVars{main_~c~0=v_main_~c~0_1074, main_~d~0=v_main_~d~0_2959, main_~e~0=v_main_~e~0_10511} AuxVars[] AssignedVars[] [2021-05-03 00:36:10,649 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:36:10,649 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:10,653 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:10,709 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:36:10,744 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_10514) (< v_main_~d~0_2961 5)) InVars {main_~d~0=v_main_~d~0_2961, main_~e~0=v_main_~e~0_10514} OutVars{main_~d~0=v_main_~d~0_2961, main_~e~0=v_main_~e~0_10514} AuxVars[] AssignedVars[] [2021-05-03 00:36:10,746 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:36:10,768 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:10,771 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:10,786 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:36:10,810 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_10516 5) InVars {main_~e~0=v_main_~e~0_10516} OutVars{main_~e~0=v_main_~e~0_10516} AuxVars[] AssignedVars[] [2021-05-03 00:36:10,811 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:36:10,821 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:10,827 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:36:10,837 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:36:10,864 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:36:10,865 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:10,890 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:36:10,906 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:36:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:36:10,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:36:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:36:10,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:36:14,137 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:36:14,137 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [709190489] [2021-05-03 00:36:14,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [709190489] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:36:14,137 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:36:14,137 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [73] imperfect sequences [] total 73 [2021-05-03 00:36:14,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193705439] [2021-05-03 00:36:14,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 73 states [2021-05-03 00:36:14,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:36:14,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-05-03 00:36:14,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=4925, Unknown=0, NotChecked=0, Total=5256 [2021-05-03 00:36:14,138 INFO L87 Difference]: Start difference. First operand 159 states and 163 transitions. Second operand has 73 states, 73 states have (on average 2.095890410958904) internal successors, (153), 72 states have internal predecessors, (153), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:36:22,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:36:22,397 INFO L93 Difference]: Finished difference Result 190 states and 206 transitions. [2021-05-03 00:36:22,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-05-03 00:36:22,398 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 2.095890410958904) internal successors, (153), 72 states have internal predecessors, (153), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2021-05-03 00:36:22,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:36:22,399 INFO L225 Difference]: With dead ends: 190 [2021-05-03 00:36:22,399 INFO L226 Difference]: Without dead ends: 177 [2021-05-03 00:36:22,400 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 68 SyntacticMatches, 18 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5178 ImplicationChecksByTransitivity, 7264.1ms TimeCoverageRelationStatistics Valid=987, Invalid=19319, Unknown=0, NotChecked=0, Total=20306 [2021-05-03 00:36:22,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-05-03 00:36:22,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 161. [2021-05-03 00:36:22,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 157 states have (on average 1.0318471337579618) internal successors, (162), 157 states have internal predecessors, (162), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:36:22,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 165 transitions. [2021-05-03 00:36:22,525 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 165 transitions. Word has length 156 [2021-05-03 00:36:22,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:36:22,525 INFO L480 AbstractCegarLoop]: Abstraction has 161 states and 165 transitions. [2021-05-03 00:36:22,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 73 states, 73 states have (on average 2.095890410958904) internal successors, (153), 72 states have internal predecessors, (153), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:36:22,525 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 165 transitions. [2021-05-03 00:36:22,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-05-03 00:36:22,526 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:36:22,526 INFO L523 BasicCegarLoop]: trace histogram [54, 54, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:36:22,526 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-05-03 00:36:22,526 INFO L428 AbstractCegarLoop]: === Iteration 70 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:36:22,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:36:22,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1084623375, now seen corresponding path program 64 times [2021-05-03 00:36:22,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:36:22,526 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [161159013] [2021-05-03 00:36:22,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:36:23,273 WARN L205 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 156 [2021-05-03 00:36:23,534 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_3036) (<= 5 v_main_~e~0_10808) (< v_main_~c~0_1102 5)) InVars {main_~c~0=v_main_~c~0_1102, main_~d~0=v_main_~d~0_3036, main_~e~0=v_main_~e~0_10808} OutVars{main_~c~0=v_main_~c~0_1102, main_~d~0=v_main_~d~0_3036, main_~e~0=v_main_~e~0_10808} AuxVars[] AssignedVars[] [2021-05-03 00:36:23,536 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:36:23,567 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:23,571 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:23,590 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:36:23,626 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3038 5) (<= 5 v_main_~e~0_10811)) InVars {main_~d~0=v_main_~d~0_3038, main_~e~0=v_main_~e~0_10811} OutVars{main_~d~0=v_main_~d~0_3038, main_~e~0=v_main_~e~0_10811} AuxVars[] AssignedVars[] [2021-05-03 00:36:23,627 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:36:23,628 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:23,631 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:23,660 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:36:23,684 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_10813 5) InVars {main_~e~0=v_main_~e~0_10813} OutVars{main_~e~0=v_main_~e~0_10813} AuxVars[] AssignedVars[] [2021-05-03 00:36:23,685 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:36:23,694 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:23,700 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:36:23,709 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:36:23,727 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_3036) (<= 5 v_main_~e~0_10808) (< v_main_~c~0_1102 5)) InVars {main_~c~0=v_main_~c~0_1102, main_~d~0=v_main_~d~0_3036, main_~e~0=v_main_~e~0_10808} OutVars{main_~c~0=v_main_~c~0_1102, main_~d~0=v_main_~d~0_3036, main_~e~0=v_main_~e~0_10808} AuxVars[] AssignedVars[] [2021-05-03 00:36:23,729 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:36:23,761 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:23,765 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:23,785 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:36:23,819 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3038 5) (<= 5 v_main_~e~0_10811)) InVars {main_~d~0=v_main_~d~0_3038, main_~e~0=v_main_~e~0_10811} OutVars{main_~d~0=v_main_~d~0_3038, main_~e~0=v_main_~e~0_10811} AuxVars[] AssignedVars[] [2021-05-03 00:36:23,820 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:36:23,821 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:23,824 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:23,852 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:36:23,875 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_10813 5) InVars {main_~e~0=v_main_~e~0_10813} OutVars{main_~e~0=v_main_~e~0_10813} AuxVars[] AssignedVars[] [2021-05-03 00:36:23,877 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:36:23,877 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:23,883 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:36:23,899 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:36:23,916 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:36:23,917 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:23,940 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:36:23,959 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_3036) (<= 5 v_main_~e~0_10808) (< v_main_~c~0_1102 5)) InVars {main_~c~0=v_main_~c~0_1102, main_~d~0=v_main_~d~0_3036, main_~e~0=v_main_~e~0_10808} OutVars{main_~c~0=v_main_~c~0_1102, main_~d~0=v_main_~d~0_3036, main_~e~0=v_main_~e~0_10808} AuxVars[] AssignedVars[] [2021-05-03 00:36:23,961 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:36:23,962 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:23,965 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:24,014 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:36:24,047 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3038 5) (<= 5 v_main_~e~0_10811)) InVars {main_~d~0=v_main_~d~0_3038, main_~e~0=v_main_~e~0_10811} OutVars{main_~d~0=v_main_~d~0_3038, main_~e~0=v_main_~e~0_10811} AuxVars[] AssignedVars[] [2021-05-03 00:36:24,049 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:36:24,049 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:24,053 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:24,081 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:36:24,105 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_10813 5) InVars {main_~e~0=v_main_~e~0_10813} OutVars{main_~e~0=v_main_~e~0_10813} AuxVars[] AssignedVars[] [2021-05-03 00:36:24,106 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:36:24,107 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:24,113 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:36:24,129 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:36:24,156 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:36:24,157 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:24,187 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:36:24,206 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:36:24,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:36:24,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:36:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:36:24,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:36:27,872 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:36:27,872 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [161159013] [2021-05-03 00:36:27,872 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [161159013] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:36:27,872 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:36:27,872 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [74] imperfect sequences [] total 74 [2021-05-03 00:36:27,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369908124] [2021-05-03 00:36:27,872 INFO L460 AbstractCegarLoop]: Interpolant automaton has 74 states [2021-05-03 00:36:27,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:36:27,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2021-05-03 00:36:27,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=5067, Unknown=0, NotChecked=0, Total=5402 [2021-05-03 00:36:27,873 INFO L87 Difference]: Start difference. First operand 161 states and 165 transitions. Second operand has 74 states, 74 states have (on average 2.108108108108108) internal successors, (156), 73 states have internal predecessors, (156), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:36:36,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:36:36,147 INFO L93 Difference]: Finished difference Result 192 states and 208 transitions. [2021-05-03 00:36:36,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-05-03 00:36:36,148 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 2.108108108108108) internal successors, (156), 73 states have internal predecessors, (156), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2021-05-03 00:36:36,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:36:36,149 INFO L225 Difference]: With dead ends: 192 [2021-05-03 00:36:36,149 INFO L226 Difference]: Without dead ends: 179 [2021-05-03 00:36:36,150 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 64 SyntacticMatches, 24 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5370 ImplicationChecksByTransitivity, 8184.0ms TimeCoverageRelationStatistics Valid=999, Invalid=19881, Unknown=0, NotChecked=0, Total=20880 [2021-05-03 00:36:36,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-05-03 00:36:36,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 162. [2021-05-03 00:36:36,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 158 states have (on average 1.0316455696202531) internal successors, (163), 158 states have internal predecessors, (163), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:36:36,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 166 transitions. [2021-05-03 00:36:36,333 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 166 transitions. Word has length 159 [2021-05-03 00:36:36,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:36:36,333 INFO L480 AbstractCegarLoop]: Abstraction has 162 states and 166 transitions. [2021-05-03 00:36:36,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 74 states, 74 states have (on average 2.108108108108108) internal successors, (156), 73 states have internal predecessors, (156), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:36:36,333 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 166 transitions. [2021-05-03 00:36:36,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-05-03 00:36:36,334 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:36:36,334 INFO L523 BasicCegarLoop]: trace histogram [55, 55, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:36:36,334 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-05-03 00:36:36,334 INFO L428 AbstractCegarLoop]: === Iteration 71 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:36:36,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:36:36,334 INFO L82 PathProgramCache]: Analyzing trace with hash -420121427, now seen corresponding path program 65 times [2021-05-03 00:36:36,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:36:36,334 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [608557010] [2021-05-03 00:36:36,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:36:37,318 WARN L205 SmtUtils]: Spent 956.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 156 [2021-05-03 00:36:37,588 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_11110) (<= 5 v_main_~d~0_3115) (< v_main_~c~0_1130 5)) InVars {main_~c~0=v_main_~c~0_1130, main_~d~0=v_main_~d~0_3115, main_~e~0=v_main_~e~0_11110} OutVars{main_~c~0=v_main_~c~0_1130, main_~d~0=v_main_~d~0_3115, main_~e~0=v_main_~e~0_11110} AuxVars[] AssignedVars[] [2021-05-03 00:36:37,589 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:36:37,624 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:37,628 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:37,650 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:36:37,684 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3117 5) (<= 5 v_main_~e~0_11113)) InVars {main_~d~0=v_main_~d~0_3117, main_~e~0=v_main_~e~0_11113} OutVars{main_~d~0=v_main_~d~0_3117, main_~e~0=v_main_~e~0_11113} AuxVars[] AssignedVars[] [2021-05-03 00:36:37,686 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:36:37,707 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:37,710 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:37,723 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:36:37,759 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_11115 5) InVars {main_~e~0=v_main_~e~0_11115} OutVars{main_~e~0=v_main_~e~0_11115} AuxVars[] AssignedVars[] [2021-05-03 00:36:37,760 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:36:37,760 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:37,765 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:36:37,779 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:36:37,796 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_11110) (<= 5 v_main_~d~0_3115) (< v_main_~c~0_1130 5)) InVars {main_~c~0=v_main_~c~0_1130, main_~d~0=v_main_~d~0_3115, main_~e~0=v_main_~e~0_11110} OutVars{main_~c~0=v_main_~c~0_1130, main_~d~0=v_main_~d~0_3115, main_~e~0=v_main_~e~0_11110} AuxVars[] AssignedVars[] [2021-05-03 00:36:37,798 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:36:37,799 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:37,802 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:37,844 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:36:37,875 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3117 5) (<= 5 v_main_~e~0_11113)) InVars {main_~d~0=v_main_~d~0_3117, main_~e~0=v_main_~e~0_11113} OutVars{main_~d~0=v_main_~d~0_3117, main_~e~0=v_main_~e~0_11113} AuxVars[] AssignedVars[] [2021-05-03 00:36:37,876 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:36:37,877 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:37,880 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:37,906 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:36:37,927 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_11115 5) InVars {main_~e~0=v_main_~e~0_11115} OutVars{main_~e~0=v_main_~e~0_11115} AuxVars[] AssignedVars[] [2021-05-03 00:36:37,928 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:36:37,937 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:37,942 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:36:37,949 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:36:37,963 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:36:37,964 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:37,985 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:36:38,002 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_11110) (<= 5 v_main_~d~0_3115) (< v_main_~c~0_1130 5)) InVars {main_~c~0=v_main_~c~0_1130, main_~d~0=v_main_~d~0_3115, main_~e~0=v_main_~e~0_11110} OutVars{main_~c~0=v_main_~c~0_1130, main_~d~0=v_main_~d~0_3115, main_~e~0=v_main_~e~0_11110} AuxVars[] AssignedVars[] [2021-05-03 00:36:38,004 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:36:38,034 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:38,038 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:38,057 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:36:38,088 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3117 5) (<= 5 v_main_~e~0_11113)) InVars {main_~d~0=v_main_~d~0_3117, main_~e~0=v_main_~e~0_11113} OutVars{main_~d~0=v_main_~d~0_3117, main_~e~0=v_main_~e~0_11113} AuxVars[] AssignedVars[] [2021-05-03 00:36:38,113 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:36:38,115 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:38,119 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:38,152 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:36:38,176 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_11115 5) InVars {main_~e~0=v_main_~e~0_11115} OutVars{main_~e~0=v_main_~e~0_11115} AuxVars[] AssignedVars[] [2021-05-03 00:36:38,177 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:36:38,178 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:38,184 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:36:38,203 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:36:38,232 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:36:38,233 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:38,268 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:36:38,287 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:36:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:36:38,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:36:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:36:38,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:36:41,870 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:36:41,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [608557010] [2021-05-03 00:36:41,870 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [608557010] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:36:41,870 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:36:41,870 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [75] imperfect sequences [] total 75 [2021-05-03 00:36:41,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889918749] [2021-05-03 00:36:41,870 INFO L460 AbstractCegarLoop]: Interpolant automaton has 75 states [2021-05-03 00:36:41,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:36:41,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2021-05-03 00:36:41,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=339, Invalid=5211, Unknown=0, NotChecked=0, Total=5550 [2021-05-03 00:36:41,871 INFO L87 Difference]: Start difference. First operand 162 states and 166 transitions. Second operand has 75 states, 75 states have (on average 2.1066666666666665) internal successors, (158), 74 states have internal predecessors, (158), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:36:49,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:36:49,773 INFO L93 Difference]: Finished difference Result 194 states and 210 transitions. [2021-05-03 00:36:49,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-05-03 00:36:49,774 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 2.1066666666666665) internal successors, (158), 74 states have internal predecessors, (158), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 161 [2021-05-03 00:36:49,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:36:49,775 INFO L225 Difference]: With dead ends: 194 [2021-05-03 00:36:49,775 INFO L226 Difference]: Without dead ends: 181 [2021-05-03 00:36:49,777 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 61 SyntacticMatches, 28 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5623 ImplicationChecksByTransitivity, 7790.3ms TimeCoverageRelationStatistics Valid=1011, Invalid=20451, Unknown=0, NotChecked=0, Total=21462 [2021-05-03 00:36:49,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-05-03 00:36:49,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 164. [2021-05-03 00:36:49,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 160 states have (on average 1.03125) internal successors, (165), 160 states have internal predecessors, (165), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:36:49,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 168 transitions. [2021-05-03 00:36:49,932 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 168 transitions. Word has length 161 [2021-05-03 00:36:49,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:36:49,932 INFO L480 AbstractCegarLoop]: Abstraction has 164 states and 168 transitions. [2021-05-03 00:36:49,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 75 states, 75 states have (on average 2.1066666666666665) internal successors, (158), 74 states have internal predecessors, (158), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:36:49,932 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 168 transitions. [2021-05-03 00:36:49,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-05-03 00:36:49,933 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:36:49,933 INFO L523 BasicCegarLoop]: trace histogram [56, 56, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:36:49,933 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-05-03 00:36:49,933 INFO L428 AbstractCegarLoop]: === Iteration 72 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:36:49,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:36:49,933 INFO L82 PathProgramCache]: Analyzing trace with hash 924102603, now seen corresponding path program 66 times [2021-05-03 00:36:49,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:36:49,934 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342610270] [2021-05-03 00:36:49,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:36:50,729 WARN L205 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 154 [2021-05-03 00:36:50,963 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_3194) (< v_main_~c~0_1158 5) (<= 5 v_main_~e~0_11417)) InVars {main_~c~0=v_main_~c~0_1158, main_~d~0=v_main_~d~0_3194, main_~e~0=v_main_~e~0_11417} OutVars{main_~c~0=v_main_~c~0_1158, main_~d~0=v_main_~d~0_3194, main_~e~0=v_main_~e~0_11417} AuxVars[] AssignedVars[] [2021-05-03 00:36:50,965 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:36:50,966 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:50,979 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:51,032 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:36:51,075 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_11420) (< v_main_~d~0_3196 5)) InVars {main_~d~0=v_main_~d~0_3196, main_~e~0=v_main_~e~0_11420} OutVars{main_~d~0=v_main_~d~0_3196, main_~e~0=v_main_~e~0_11420} AuxVars[] AssignedVars[] [2021-05-03 00:36:51,080 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:36:51,106 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:51,110 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:51,125 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:36:51,152 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_11422 5) InVars {main_~e~0=v_main_~e~0_11422} OutVars{main_~e~0=v_main_~e~0_11422} AuxVars[] AssignedVars[] [2021-05-03 00:36:51,154 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:36:51,166 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:51,173 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:36:51,184 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:36:51,205 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_3194) (< v_main_~c~0_1158 5) (<= 5 v_main_~e~0_11417)) InVars {main_~c~0=v_main_~c~0_1158, main_~d~0=v_main_~d~0_3194, main_~e~0=v_main_~e~0_11417} OutVars{main_~c~0=v_main_~c~0_1158, main_~d~0=v_main_~d~0_3194, main_~e~0=v_main_~e~0_11417} AuxVars[] AssignedVars[] [2021-05-03 00:36:51,207 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:36:51,248 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:51,252 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:51,277 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:36:51,314 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_11420) (< v_main_~d~0_3196 5)) InVars {main_~d~0=v_main_~d~0_3196, main_~e~0=v_main_~e~0_11420} OutVars{main_~d~0=v_main_~d~0_3196, main_~e~0=v_main_~e~0_11420} AuxVars[] AssignedVars[] [2021-05-03 00:36:51,316 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:36:51,318 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:51,322 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:51,375 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:36:51,402 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_11422 5) InVars {main_~e~0=v_main_~e~0_11422} OutVars{main_~e~0=v_main_~e~0_11422} AuxVars[] AssignedVars[] [2021-05-03 00:36:51,404 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:36:51,416 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:51,424 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:36:51,454 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:36:51,473 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:36:51,474 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:51,503 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:36:51,525 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_3194) (< v_main_~c~0_1158 5) (<= 5 v_main_~e~0_11417)) InVars {main_~c~0=v_main_~c~0_1158, main_~d~0=v_main_~d~0_3194, main_~e~0=v_main_~e~0_11417} OutVars{main_~c~0=v_main_~c~0_1158, main_~d~0=v_main_~d~0_3194, main_~e~0=v_main_~e~0_11417} AuxVars[] AssignedVars[] [2021-05-03 00:36:51,528 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:36:51,568 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:51,572 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:51,597 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:36:51,635 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_11420) (< v_main_~d~0_3196 5)) InVars {main_~d~0=v_main_~d~0_3196, main_~e~0=v_main_~e~0_11420} OutVars{main_~d~0=v_main_~d~0_3196, main_~e~0=v_main_~e~0_11420} AuxVars[] AssignedVars[] [2021-05-03 00:36:51,636 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:36:51,637 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:51,642 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:36:51,677 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:36:51,704 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_11422 5) InVars {main_~e~0=v_main_~e~0_11422} OutVars{main_~e~0=v_main_~e~0_11422} AuxVars[] AssignedVars[] [2021-05-03 00:36:51,706 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:36:51,707 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:51,714 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:36:51,736 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:36:51,767 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:36:51,768 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:36:51,808 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:36:51,829 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:36:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:36:51,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:36:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:36:51,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:36:55,771 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:36:55,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342610270] [2021-05-03 00:36:55,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [342610270] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:36:55,772 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:36:55,772 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [76] imperfect sequences [] total 76 [2021-05-03 00:36:55,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170951498] [2021-05-03 00:36:55,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 76 states [2021-05-03 00:36:55,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:36:55,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2021-05-03 00:36:55,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=343, Invalid=5357, Unknown=0, NotChecked=0, Total=5700 [2021-05-03 00:36:55,773 INFO L87 Difference]: Start difference. First operand 164 states and 168 transitions. Second operand has 76 states, 76 states have (on average 2.1052631578947367) internal successors, (160), 75 states have internal predecessors, (160), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:37:04,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:37:04,821 INFO L93 Difference]: Finished difference Result 196 states and 212 transitions. [2021-05-03 00:37:04,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-05-03 00:37:04,822 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 76 states have (on average 2.1052631578947367) internal successors, (160), 75 states have internal predecessors, (160), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2021-05-03 00:37:04,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:37:04,823 INFO L225 Difference]: With dead ends: 196 [2021-05-03 00:37:04,823 INFO L226 Difference]: Without dead ends: 183 [2021-05-03 00:37:04,825 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 70 SyntacticMatches, 20 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5756 ImplicationChecksByTransitivity, 8852.6ms TimeCoverageRelationStatistics Valid=1023, Invalid=21029, Unknown=0, NotChecked=0, Total=22052 [2021-05-03 00:37:04,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-05-03 00:37:04,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 166. [2021-05-03 00:37:04,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 162 states have (on average 1.0308641975308641) internal successors, (167), 162 states have internal predecessors, (167), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:37:04,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 170 transitions. [2021-05-03 00:37:04,983 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 170 transitions. Word has length 163 [2021-05-03 00:37:04,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:37:04,983 INFO L480 AbstractCegarLoop]: Abstraction has 166 states and 170 transitions. [2021-05-03 00:37:04,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 76 states, 76 states have (on average 2.1052631578947367) internal successors, (160), 75 states have internal predecessors, (160), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:37:04,983 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 170 transitions. [2021-05-03 00:37:04,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-05-03 00:37:04,984 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:37:04,984 INFO L523 BasicCegarLoop]: trace histogram [57, 57, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:37:04,984 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-05-03 00:37:04,984 INFO L428 AbstractCegarLoop]: === Iteration 73 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:37:04,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:37:04,984 INFO L82 PathProgramCache]: Analyzing trace with hash -61760663, now seen corresponding path program 67 times [2021-05-03 00:37:04,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:37:04,985 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [658997391] [2021-05-03 00:37:04,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:37:05,800 WARN L205 SmtUtils]: Spent 803.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 152 [2021-05-03 00:37:06,083 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1186 5) (<= 5 v_main_~e~0_11729) (<= 5 v_main_~d~0_3273)) InVars {main_~c~0=v_main_~c~0_1186, main_~d~0=v_main_~d~0_3273, main_~e~0=v_main_~e~0_11729} OutVars{main_~c~0=v_main_~c~0_1186, main_~d~0=v_main_~d~0_3273, main_~e~0=v_main_~e~0_11729} AuxVars[] AssignedVars[] [2021-05-03 00:37:06,085 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:37:06,126 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:06,129 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:06,152 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:37:06,189 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3275 5) (<= 5 v_main_~e~0_11732)) InVars {main_~d~0=v_main_~d~0_3275, main_~e~0=v_main_~e~0_11732} OutVars{main_~d~0=v_main_~d~0_3275, main_~e~0=v_main_~e~0_11732} AuxVars[] AssignedVars[] [2021-05-03 00:37:06,191 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:37:06,215 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:06,219 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:06,233 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:37:06,259 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_11734 5) InVars {main_~e~0=v_main_~e~0_11734} OutVars{main_~e~0=v_main_~e~0_11734} AuxVars[] AssignedVars[] [2021-05-03 00:37:06,261 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:37:06,262 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:06,268 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:37:06,289 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:37:06,310 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1186 5) (<= 5 v_main_~e~0_11729) (<= 5 v_main_~d~0_3273)) InVars {main_~c~0=v_main_~c~0_1186, main_~d~0=v_main_~d~0_3273, main_~e~0=v_main_~e~0_11729} OutVars{main_~c~0=v_main_~c~0_1186, main_~d~0=v_main_~d~0_3273, main_~e~0=v_main_~e~0_11729} AuxVars[] AssignedVars[] [2021-05-03 00:37:06,312 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:37:06,353 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:06,357 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:06,383 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:37:06,425 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3275 5) (<= 5 v_main_~e~0_11732)) InVars {main_~d~0=v_main_~d~0_3275, main_~e~0=v_main_~e~0_11732} OutVars{main_~d~0=v_main_~d~0_3275, main_~e~0=v_main_~e~0_11732} AuxVars[] AssignedVars[] [2021-05-03 00:37:06,428 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:37:06,429 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:06,433 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:06,473 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:37:06,503 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_11734 5) InVars {main_~e~0=v_main_~e~0_11734} OutVars{main_~e~0=v_main_~e~0_11734} AuxVars[] AssignedVars[] [2021-05-03 00:37:06,504 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:37:06,505 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:06,512 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:37:06,535 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:37:06,554 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:37:06,555 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:06,585 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:37:06,608 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1186 5) (<= 5 v_main_~e~0_11729) (<= 5 v_main_~d~0_3273)) InVars {main_~c~0=v_main_~c~0_1186, main_~d~0=v_main_~d~0_3273, main_~e~0=v_main_~e~0_11729} OutVars{main_~c~0=v_main_~c~0_1186, main_~d~0=v_main_~d~0_3273, main_~e~0=v_main_~e~0_11729} AuxVars[] AssignedVars[] [2021-05-03 00:37:06,611 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:37:06,612 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:06,617 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:06,693 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:37:06,732 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3275 5) (<= 5 v_main_~e~0_11732)) InVars {main_~d~0=v_main_~d~0_3275, main_~e~0=v_main_~e~0_11732} OutVars{main_~d~0=v_main_~d~0_3275, main_~e~0=v_main_~e~0_11732} AuxVars[] AssignedVars[] [2021-05-03 00:37:06,733 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:37:06,734 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:06,738 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:06,772 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:37:06,799 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_11734 5) InVars {main_~e~0=v_main_~e~0_11734} OutVars{main_~e~0=v_main_~e~0_11734} AuxVars[] AssignedVars[] [2021-05-03 00:37:06,801 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:37:06,813 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:06,821 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:37:06,832 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:37:06,863 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:37:06,864 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:06,905 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:37:06,928 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:37:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:37:06,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:37:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:37:06,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:37:11,264 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:37:11,264 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [658997391] [2021-05-03 00:37:11,264 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [658997391] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:37:11,264 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:37:11,264 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [77] imperfect sequences [] total 77 [2021-05-03 00:37:11,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140021538] [2021-05-03 00:37:11,265 INFO L460 AbstractCegarLoop]: Interpolant automaton has 77 states [2021-05-03 00:37:11,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:37:11,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2021-05-03 00:37:11,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=347, Invalid=5505, Unknown=0, NotChecked=0, Total=5852 [2021-05-03 00:37:11,266 INFO L87 Difference]: Start difference. First operand 166 states and 170 transitions. Second operand has 77 states, 77 states have (on average 2.103896103896104) internal successors, (162), 76 states have internal predecessors, (162), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:37:19,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:37:19,759 INFO L93 Difference]: Finished difference Result 198 states and 214 transitions. [2021-05-03 00:37:19,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-05-03 00:37:19,760 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 77 states have (on average 2.103896103896104) internal successors, (162), 76 states have internal predecessors, (162), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 165 [2021-05-03 00:37:19,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:37:19,761 INFO L225 Difference]: With dead ends: 198 [2021-05-03 00:37:19,761 INFO L226 Difference]: Without dead ends: 185 [2021-05-03 00:37:19,763 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 64 SyntacticMatches, 27 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5817 ImplicationChecksByTransitivity, 8981.7ms TimeCoverageRelationStatistics Valid=1035, Invalid=21615, Unknown=0, NotChecked=0, Total=22650 [2021-05-03 00:37:19,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-05-03 00:37:20,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 168. [2021-05-03 00:37:20,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 164 states have (on average 1.0304878048780488) internal successors, (169), 164 states have internal predecessors, (169), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:37:20,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 172 transitions. [2021-05-03 00:37:20,010 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 172 transitions. Word has length 165 [2021-05-03 00:37:20,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:37:20,012 INFO L480 AbstractCegarLoop]: Abstraction has 168 states and 172 transitions. [2021-05-03 00:37:20,013 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 77 states, 77 states have (on average 2.103896103896104) internal successors, (162), 76 states have internal predecessors, (162), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:37:20,013 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 172 transitions. [2021-05-03 00:37:20,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-05-03 00:37:20,033 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:37:20,033 INFO L523 BasicCegarLoop]: trace histogram [58, 58, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:37:20,033 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-05-03 00:37:20,033 INFO L428 AbstractCegarLoop]: === Iteration 74 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:37:20,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:37:20,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1711413127, now seen corresponding path program 68 times [2021-05-03 00:37:20,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:37:20,034 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [105723058] [2021-05-03 00:37:20,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:37:20,957 WARN L205 SmtUtils]: Spent 910.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 156 [2021-05-03 00:37:21,248 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1214 5) (<= 5 v_main_~d~0_3352) (<= 5 v_main_~e~0_12046)) InVars {main_~c~0=v_main_~c~0_1214, main_~d~0=v_main_~d~0_3352, main_~e~0=v_main_~e~0_12046} OutVars{main_~c~0=v_main_~c~0_1214, main_~d~0=v_main_~d~0_3352, main_~e~0=v_main_~e~0_12046} AuxVars[] AssignedVars[] [2021-05-03 00:37:21,252 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:37:21,254 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:21,259 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:21,318 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:37:21,358 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_12049) (< v_main_~d~0_3354 5)) InVars {main_~d~0=v_main_~d~0_3354, main_~e~0=v_main_~e~0_12049} OutVars{main_~d~0=v_main_~d~0_3354, main_~e~0=v_main_~e~0_12049} AuxVars[] AssignedVars[] [2021-05-03 00:37:21,360 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:37:21,361 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:21,365 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:21,399 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:37:21,422 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_12051 5) InVars {main_~e~0=v_main_~e~0_12051} OutVars{main_~e~0=v_main_~e~0_12051} AuxVars[] AssignedVars[] [2021-05-03 00:37:21,424 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:37:21,424 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:21,430 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:37:21,447 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:37:21,465 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1214 5) (<= 5 v_main_~d~0_3352) (<= 5 v_main_~e~0_12046)) InVars {main_~c~0=v_main_~c~0_1214, main_~d~0=v_main_~d~0_3352, main_~e~0=v_main_~e~0_12046} OutVars{main_~c~0=v_main_~c~0_1214, main_~d~0=v_main_~d~0_3352, main_~e~0=v_main_~e~0_12046} AuxVars[] AssignedVars[] [2021-05-03 00:37:21,485 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:37:21,487 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:21,491 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:21,534 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:37:21,572 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_12049) (< v_main_~d~0_3354 5)) InVars {main_~d~0=v_main_~d~0_3354, main_~e~0=v_main_~e~0_12049} OutVars{main_~d~0=v_main_~d~0_3354, main_~e~0=v_main_~e~0_12049} AuxVars[] AssignedVars[] [2021-05-03 00:37:21,573 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:37:21,574 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:21,578 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:21,607 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:37:21,631 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_12051 5) InVars {main_~e~0=v_main_~e~0_12051} OutVars{main_~e~0=v_main_~e~0_12051} AuxVars[] AssignedVars[] [2021-05-03 00:37:21,633 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:37:21,634 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:21,639 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:37:21,655 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:37:21,671 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:37:21,672 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:21,693 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:37:21,712 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1214 5) (<= 5 v_main_~d~0_3352) (<= 5 v_main_~e~0_12046)) InVars {main_~c~0=v_main_~c~0_1214, main_~d~0=v_main_~d~0_3352, main_~e~0=v_main_~e~0_12046} OutVars{main_~c~0=v_main_~c~0_1214, main_~d~0=v_main_~d~0_3352, main_~e~0=v_main_~e~0_12046} AuxVars[] AssignedVars[] [2021-05-03 00:37:21,714 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:37:21,748 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:21,751 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:21,777 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:37:21,816 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_12049) (< v_main_~d~0_3354 5)) InVars {main_~d~0=v_main_~d~0_3354, main_~e~0=v_main_~e~0_12049} OutVars{main_~d~0=v_main_~d~0_3354, main_~e~0=v_main_~e~0_12049} AuxVars[] AssignedVars[] [2021-05-03 00:37:21,817 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:37:21,841 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:21,845 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:21,858 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:37:21,884 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_12051 5) InVars {main_~e~0=v_main_~e~0_12051} OutVars{main_~e~0=v_main_~e~0_12051} AuxVars[] AssignedVars[] [2021-05-03 00:37:21,885 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:37:21,886 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:21,892 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:37:21,912 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:37:21,945 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:37:21,947 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:21,984 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:37:22,004 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:37:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:37:22,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:37:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:37:22,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:37:26,458 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:37:26,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [105723058] [2021-05-03 00:37:26,459 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [105723058] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:37:26,459 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:37:26,459 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [78] imperfect sequences [] total 78 [2021-05-03 00:37:26,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934481106] [2021-05-03 00:37:26,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 78 states [2021-05-03 00:37:26,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:37:26,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2021-05-03 00:37:26,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=5655, Unknown=0, NotChecked=0, Total=6006 [2021-05-03 00:37:26,460 INFO L87 Difference]: Start difference. First operand 168 states and 172 transitions. Second operand has 78 states, 78 states have (on average 2.1025641025641026) internal successors, (164), 77 states have internal predecessors, (164), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:37:36,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:37:36,444 INFO L93 Difference]: Finished difference Result 200 states and 216 transitions. [2021-05-03 00:37:36,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-05-03 00:37:36,445 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 78 states have (on average 2.1025641025641026) internal successors, (164), 77 states have internal predecessors, (164), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2021-05-03 00:37:36,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:37:36,447 INFO L225 Difference]: With dead ends: 200 [2021-05-03 00:37:36,447 INFO L226 Difference]: Without dead ends: 187 [2021-05-03 00:37:36,448 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 68 SyntacticMatches, 24 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6045 ImplicationChecksByTransitivity, 9699.6ms TimeCoverageRelationStatistics Valid=1047, Invalid=22209, Unknown=0, NotChecked=0, Total=23256 [2021-05-03 00:37:36,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-05-03 00:37:36,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 170. [2021-05-03 00:37:36,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 166 states have (on average 1.0301204819277108) internal successors, (171), 166 states have internal predecessors, (171), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:37:36,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 174 transitions. [2021-05-03 00:37:36,591 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 174 transitions. Word has length 167 [2021-05-03 00:37:36,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:37:36,591 INFO L480 AbstractCegarLoop]: Abstraction has 170 states and 174 transitions. [2021-05-03 00:37:36,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 78 states, 78 states have (on average 2.1025641025641026) internal successors, (164), 77 states have internal predecessors, (164), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:37:36,591 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 174 transitions. [2021-05-03 00:37:36,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-05-03 00:37:36,592 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:37:36,592 INFO L523 BasicCegarLoop]: trace histogram [59, 59, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:37:36,592 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-05-03 00:37:36,592 INFO L428 AbstractCegarLoop]: === Iteration 75 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:37:36,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:37:36,592 INFO L82 PathProgramCache]: Analyzing trace with hash 629408805, now seen corresponding path program 69 times [2021-05-03 00:37:36,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:37:36,593 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1758317397] [2021-05-03 00:37:36,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:37:37,433 WARN L205 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 155 [2021-05-03 00:37:37,708 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_3431) (< v_main_~c~0_1242 5) (<= 5 v_main_~e~0_12368)) InVars {main_~c~0=v_main_~c~0_1242, main_~d~0=v_main_~d~0_3431, main_~e~0=v_main_~e~0_12368} OutVars{main_~c~0=v_main_~c~0_1242, main_~d~0=v_main_~d~0_3431, main_~e~0=v_main_~e~0_12368} AuxVars[] AssignedVars[] [2021-05-03 00:37:37,710 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:37:37,711 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:37,715 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:37,768 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:37:37,807 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3433 5) (<= 5 v_main_~e~0_12371)) InVars {main_~d~0=v_main_~d~0_3433, main_~e~0=v_main_~e~0_12371} OutVars{main_~d~0=v_main_~d~0_3433, main_~e~0=v_main_~e~0_12371} AuxVars[] AssignedVars[] [2021-05-03 00:37:37,808 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:37:37,810 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:37,813 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:37,847 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:37:37,875 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_12373 5) InVars {main_~e~0=v_main_~e~0_12373} OutVars{main_~e~0=v_main_~e~0_12373} AuxVars[] AssignedVars[] [2021-05-03 00:37:37,876 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:37:37,877 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:37,883 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:37:37,902 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:37:37,925 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_3431) (< v_main_~c~0_1242 5) (<= 5 v_main_~e~0_12368)) InVars {main_~c~0=v_main_~c~0_1242, main_~d~0=v_main_~d~0_3431, main_~e~0=v_main_~e~0_12368} OutVars{main_~c~0=v_main_~c~0_1242, main_~d~0=v_main_~d~0_3431, main_~e~0=v_main_~e~0_12368} AuxVars[] AssignedVars[] [2021-05-03 00:37:37,927 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:37:37,928 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:37,932 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:37,990 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:37:38,031 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3433 5) (<= 5 v_main_~e~0_12371)) InVars {main_~d~0=v_main_~d~0_3433, main_~e~0=v_main_~e~0_12371} OutVars{main_~d~0=v_main_~d~0_3433, main_~e~0=v_main_~e~0_12371} AuxVars[] AssignedVars[] [2021-05-03 00:37:38,033 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:37:38,034 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:38,038 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:38,070 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:37:38,096 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_12373 5) InVars {main_~e~0=v_main_~e~0_12373} OutVars{main_~e~0=v_main_~e~0_12373} AuxVars[] AssignedVars[] [2021-05-03 00:37:38,098 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:37:38,108 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:38,114 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:37:38,124 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:37:38,142 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:37:38,144 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:38,171 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:37:38,193 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_3431) (< v_main_~c~0_1242 5) (<= 5 v_main_~e~0_12368)) InVars {main_~c~0=v_main_~c~0_1242, main_~d~0=v_main_~d~0_3431, main_~e~0=v_main_~e~0_12368} OutVars{main_~c~0=v_main_~c~0_1242, main_~d~0=v_main_~d~0_3431, main_~e~0=v_main_~e~0_12368} AuxVars[] AssignedVars[] [2021-05-03 00:37:38,195 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:37:38,232 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:38,237 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:38,260 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:37:38,297 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3433 5) (<= 5 v_main_~e~0_12371)) InVars {main_~d~0=v_main_~d~0_3433, main_~e~0=v_main_~e~0_12371} OutVars{main_~d~0=v_main_~d~0_3433, main_~e~0=v_main_~e~0_12371} AuxVars[] AssignedVars[] [2021-05-03 00:37:38,299 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:37:38,324 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:38,327 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:38,343 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:37:38,370 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_12373 5) InVars {main_~e~0=v_main_~e~0_12373} OutVars{main_~e~0=v_main_~e~0_12373} AuxVars[] AssignedVars[] [2021-05-03 00:37:38,371 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:37:38,382 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:38,389 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:37:38,399 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:37:38,431 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:37:38,432 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:38,469 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:37:38,489 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:37:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:37:38,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:37:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:37:38,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:37:42,987 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:37:42,987 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1758317397] [2021-05-03 00:37:42,988 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1758317397] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:37:42,988 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:37:42,988 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [79] imperfect sequences [] total 79 [2021-05-03 00:37:42,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244129247] [2021-05-03 00:37:42,988 INFO L460 AbstractCegarLoop]: Interpolant automaton has 79 states [2021-05-03 00:37:42,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:37:42,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2021-05-03 00:37:42,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=355, Invalid=5807, Unknown=0, NotChecked=0, Total=6162 [2021-05-03 00:37:42,989 INFO L87 Difference]: Start difference. First operand 170 states and 174 transitions. Second operand has 79 states, 79 states have (on average 2.1012658227848102) internal successors, (166), 78 states have internal predecessors, (166), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:37:53,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:37:53,707 INFO L93 Difference]: Finished difference Result 204 states and 221 transitions. [2021-05-03 00:37:53,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-05-03 00:37:53,708 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 79 states have (on average 2.1012658227848102) internal successors, (166), 78 states have internal predecessors, (166), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 169 [2021-05-03 00:37:53,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:37:53,709 INFO L225 Difference]: With dead ends: 204 [2021-05-03 00:37:53,709 INFO L226 Difference]: Without dead ends: 191 [2021-05-03 00:37:53,711 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 60 SyntacticMatches, 33 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6337 ImplicationChecksByTransitivity, 10403.1ms TimeCoverageRelationStatistics Valid=1059, Invalid=22811, Unknown=0, NotChecked=0, Total=23870 [2021-05-03 00:37:53,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-05-03 00:37:53,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 174. [2021-05-03 00:37:53,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 170 states have (on average 1.0294117647058822) internal successors, (175), 170 states have internal predecessors, (175), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:37:53,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 178 transitions. [2021-05-03 00:37:53,903 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 178 transitions. Word has length 169 [2021-05-03 00:37:53,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:37:53,903 INFO L480 AbstractCegarLoop]: Abstraction has 174 states and 178 transitions. [2021-05-03 00:37:53,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 79 states, 79 states have (on average 2.1012658227848102) internal successors, (166), 78 states have internal predecessors, (166), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:37:53,903 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 178 transitions. [2021-05-03 00:37:53,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-05-03 00:37:53,904 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:37:53,904 INFO L523 BasicCegarLoop]: trace histogram [60, 60, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:37:53,904 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-05-03 00:37:53,904 INFO L428 AbstractCegarLoop]: === Iteration 76 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:37:53,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:37:53,904 INFO L82 PathProgramCache]: Analyzing trace with hash 205340995, now seen corresponding path program 70 times [2021-05-03 00:37:53,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:37:53,905 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1760548481] [2021-05-03 00:37:53,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:37:54,702 WARN L205 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 156 [2021-05-03 00:37:54,904 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_12688) (<= 5 v_main_~d~0_3508) (< v_main_~c~0_1270 5)) InVars {main_~c~0=v_main_~c~0_1270, main_~d~0=v_main_~d~0_3508, main_~e~0=v_main_~e~0_12688} OutVars{main_~c~0=v_main_~c~0_1270, main_~d~0=v_main_~d~0_3508, main_~e~0=v_main_~e~0_12688} AuxVars[] AssignedVars[] [2021-05-03 00:37:54,906 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:37:54,907 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:54,910 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:54,974 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:37:55,001 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3510 5) (<= 5 v_main_~e~0_12691)) InVars {main_~d~0=v_main_~d~0_3510, main_~e~0=v_main_~e~0_12691} OutVars{main_~d~0=v_main_~d~0_3510, main_~e~0=v_main_~e~0_12691} AuxVars[] AssignedVars[] [2021-05-03 00:37:55,002 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:37:55,003 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:55,007 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:55,032 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:37:55,078 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_12693 5) InVars {main_~e~0=v_main_~e~0_12693} OutVars{main_~e~0=v_main_~e~0_12693} AuxVars[] AssignedVars[] [2021-05-03 00:37:55,080 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:37:55,081 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:55,088 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:37:55,105 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:37:55,136 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_12688) (<= 5 v_main_~d~0_3508) (< v_main_~c~0_1270 5)) InVars {main_~c~0=v_main_~c~0_1270, main_~d~0=v_main_~d~0_3508, main_~e~0=v_main_~e~0_12688} OutVars{main_~c~0=v_main_~c~0_1270, main_~d~0=v_main_~d~0_3508, main_~e~0=v_main_~e~0_12688} AuxVars[] AssignedVars[] [2021-05-03 00:37:55,138 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:37:55,184 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:55,187 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:55,201 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:37:55,232 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3510 5) (<= 5 v_main_~e~0_12691)) InVars {main_~d~0=v_main_~d~0_3510, main_~e~0=v_main_~e~0_12691} OutVars{main_~d~0=v_main_~d~0_3510, main_~e~0=v_main_~e~0_12691} AuxVars[] AssignedVars[] [2021-05-03 00:37:55,233 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:37:55,254 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:55,258 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:55,270 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:37:55,291 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_12693 5) InVars {main_~e~0=v_main_~e~0_12693} OutVars{main_~e~0=v_main_~e~0_12693} AuxVars[] AssignedVars[] [2021-05-03 00:37:55,292 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:37:55,301 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:55,307 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:37:55,315 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:37:55,329 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:37:55,330 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:55,350 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:37:55,366 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_12688) (<= 5 v_main_~d~0_3508) (< v_main_~c~0_1270 5)) InVars {main_~c~0=v_main_~c~0_1270, main_~d~0=v_main_~d~0_3508, main_~e~0=v_main_~e~0_12688} OutVars{main_~c~0=v_main_~c~0_1270, main_~d~0=v_main_~d~0_3508, main_~e~0=v_main_~e~0_12688} AuxVars[] AssignedVars[] [2021-05-03 00:37:55,368 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:37:55,401 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:55,405 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:55,423 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:37:55,451 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3510 5) (<= 5 v_main_~e~0_12691)) InVars {main_~d~0=v_main_~d~0_3510, main_~e~0=v_main_~e~0_12691} OutVars{main_~d~0=v_main_~d~0_3510, main_~e~0=v_main_~e~0_12691} AuxVars[] AssignedVars[] [2021-05-03 00:37:55,453 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:37:55,473 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:55,476 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:37:55,487 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:37:55,507 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_12693 5) InVars {main_~e~0=v_main_~e~0_12693} OutVars{main_~e~0=v_main_~e~0_12693} AuxVars[] AssignedVars[] [2021-05-03 00:37:55,508 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:37:55,516 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:55,522 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:37:55,529 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:37:55,555 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:37:55,556 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:37:55,583 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:37:55,596 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:37:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:37:55,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:37:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:37:55,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:38:00,819 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:38:00,820 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1760548481] [2021-05-03 00:38:00,820 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1760548481] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:38:00,820 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:38:00,820 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [80] imperfect sequences [] total 80 [2021-05-03 00:38:00,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037453301] [2021-05-03 00:38:00,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 80 states [2021-05-03 00:38:00,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:38:00,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2021-05-03 00:38:00,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=359, Invalid=5961, Unknown=0, NotChecked=0, Total=6320 [2021-05-03 00:38:00,821 INFO L87 Difference]: Start difference. First operand 174 states and 178 transitions. Second operand has 80 states, 80 states have (on average 2.1) internal successors, (168), 79 states have internal predecessors, (168), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:38:12,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:38:12,265 INFO L93 Difference]: Finished difference Result 205 states and 221 transitions. [2021-05-03 00:38:12,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-05-03 00:38:12,266 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 80 states have (on average 2.1) internal successors, (168), 79 states have internal predecessors, (168), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2021-05-03 00:38:12,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:38:12,267 INFO L225 Difference]: With dead ends: 205 [2021-05-03 00:38:12,267 INFO L226 Difference]: Without dead ends: 192 [2021-05-03 00:38:12,268 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 68 SyntacticMatches, 26 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6650 ImplicationChecksByTransitivity, 10843.0ms TimeCoverageRelationStatistics Valid=1071, Invalid=23421, Unknown=0, NotChecked=0, Total=24492 [2021-05-03 00:38:12,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2021-05-03 00:38:12,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 176. [2021-05-03 00:38:12,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 172 states have (on average 1.0290697674418605) internal successors, (177), 172 states have internal predecessors, (177), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:38:12,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 180 transitions. [2021-05-03 00:38:12,428 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 180 transitions. Word has length 171 [2021-05-03 00:38:12,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:38:12,428 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 180 transitions. [2021-05-03 00:38:12,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 80 states, 80 states have (on average 2.1) internal successors, (168), 79 states have internal predecessors, (168), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:38:12,428 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 180 transitions. [2021-05-03 00:38:12,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-05-03 00:38:12,429 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:38:12,429 INFO L523 BasicCegarLoop]: trace histogram [60, 60, 11, 11, 11, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:38:12,429 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-05-03 00:38:12,429 INFO L428 AbstractCegarLoop]: === Iteration 77 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:38:12,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:38:12,430 INFO L82 PathProgramCache]: Analyzing trace with hash -606094262, now seen corresponding path program 71 times [2021-05-03 00:38:12,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:38:12,430 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24264793] [2021-05-03 00:38:12,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:38:13,265 WARN L205 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 154 [2021-05-03 00:38:13,567 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1298 5) (<= 5 v_main_~e~0_13013) (<= 5 v_main_~d~0_3589)) InVars {main_~c~0=v_main_~c~0_1298, main_~d~0=v_main_~d~0_3589, main_~e~0=v_main_~e~0_13013} OutVars{main_~c~0=v_main_~c~0_1298, main_~d~0=v_main_~d~0_3589, main_~e~0=v_main_~e~0_13013} AuxVars[] AssignedVars[] [2021-05-03 00:38:13,569 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:38:13,613 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:13,617 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:38:13,643 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:38:13,685 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3591 5) (<= 5 v_main_~e~0_13016)) InVars {main_~d~0=v_main_~d~0_3591, main_~e~0=v_main_~e~0_13016} OutVars{main_~d~0=v_main_~d~0_3591, main_~e~0=v_main_~e~0_13016} AuxVars[] AssignedVars[] [2021-05-03 00:38:13,686 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:38:13,710 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:13,713 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:38:13,728 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:38:13,756 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_13018 5) InVars {main_~e~0=v_main_~e~0_13018} OutVars{main_~e~0=v_main_~e~0_13018} AuxVars[] AssignedVars[] [2021-05-03 00:38:13,757 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:38:13,758 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:13,765 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:38:13,785 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:38:13,806 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1298 5) (<= 5 v_main_~e~0_13013) (<= 5 v_main_~d~0_3589)) InVars {main_~c~0=v_main_~c~0_1298, main_~d~0=v_main_~d~0_3589, main_~e~0=v_main_~e~0_13013} OutVars{main_~c~0=v_main_~c~0_1298, main_~d~0=v_main_~d~0_3589, main_~e~0=v_main_~e~0_13013} AuxVars[] AssignedVars[] [2021-05-03 00:38:13,809 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:38:13,810 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:13,814 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:38:13,869 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:38:13,910 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3591 5) (<= 5 v_main_~e~0_13016)) InVars {main_~d~0=v_main_~d~0_3591, main_~e~0=v_main_~e~0_13016} OutVars{main_~d~0=v_main_~d~0_3591, main_~e~0=v_main_~e~0_13016} AuxVars[] AssignedVars[] [2021-05-03 00:38:13,911 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:38:13,936 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:13,940 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:38:13,954 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:38:13,982 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_13018 5) InVars {main_~e~0=v_main_~e~0_13018} OutVars{main_~e~0=v_main_~e~0_13018} AuxVars[] AssignedVars[] [2021-05-03 00:38:13,984 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:38:13,984 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:13,991 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:38:14,012 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:38:14,030 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:38:14,031 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:14,058 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:38:14,080 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1298 5) (<= 5 v_main_~e~0_13013) (<= 5 v_main_~d~0_3589)) InVars {main_~c~0=v_main_~c~0_1298, main_~d~0=v_main_~d~0_3589, main_~e~0=v_main_~e~0_13013} OutVars{main_~c~0=v_main_~c~0_1298, main_~d~0=v_main_~d~0_3589, main_~e~0=v_main_~e~0_13013} AuxVars[] AssignedVars[] [2021-05-03 00:38:14,081 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:38:14,120 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:14,124 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:38:14,148 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:38:14,194 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3591 5) (<= 5 v_main_~e~0_13016)) InVars {main_~d~0=v_main_~d~0_3591, main_~e~0=v_main_~e~0_13016} OutVars{main_~d~0=v_main_~d~0_3591, main_~e~0=v_main_~e~0_13016} AuxVars[] AssignedVars[] [2021-05-03 00:38:14,196 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:38:14,221 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:14,225 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:38:14,240 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:38:14,269 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_13018 5) InVars {main_~e~0=v_main_~e~0_13018} OutVars{main_~e~0=v_main_~e~0_13018} AuxVars[] AssignedVars[] [2021-05-03 00:38:14,271 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:38:14,271 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:14,278 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:38:14,299 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:38:14,331 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:38:14,332 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:14,368 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:38:14,389 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:38:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:38:14,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:38:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:38:14,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:38:19,288 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:38:19,288 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [24264793] [2021-05-03 00:38:19,288 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [24264793] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:38:19,289 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:38:19,289 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [81] imperfect sequences [] total 81 [2021-05-03 00:38:19,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49393992] [2021-05-03 00:38:19,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 81 states [2021-05-03 00:38:19,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:38:19,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2021-05-03 00:38:19,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=6117, Unknown=0, NotChecked=0, Total=6480 [2021-05-03 00:38:19,290 INFO L87 Difference]: Start difference. First operand 176 states and 180 transitions. Second operand has 81 states, 81 states have (on average 2.111111111111111) internal successors, (171), 80 states have internal predecessors, (171), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:38:31,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:38:31,206 INFO L93 Difference]: Finished difference Result 207 states and 223 transitions. [2021-05-03 00:38:31,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-05-03 00:38:31,207 INFO L78 Accepts]: Start accepts. Automaton has has 81 states, 81 states have (on average 2.111111111111111) internal successors, (171), 80 states have internal predecessors, (171), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2021-05-03 00:38:31,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:38:31,208 INFO L225 Difference]: With dead ends: 207 [2021-05-03 00:38:31,208 INFO L226 Difference]: Without dead ends: 194 [2021-05-03 00:38:31,209 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 76 SyntacticMatches, 20 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6573 ImplicationChecksByTransitivity, 11095.0ms TimeCoverageRelationStatistics Valid=1083, Invalid=24039, Unknown=0, NotChecked=0, Total=25122 [2021-05-03 00:38:31,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-05-03 00:38:31,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 177. [2021-05-03 00:38:31,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 173 states have (on average 1.0289017341040463) internal successors, (178), 173 states have internal predecessors, (178), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:38:31,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 181 transitions. [2021-05-03 00:38:31,369 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 181 transitions. Word has length 174 [2021-05-03 00:38:31,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:38:31,369 INFO L480 AbstractCegarLoop]: Abstraction has 177 states and 181 transitions. [2021-05-03 00:38:31,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 81 states, 81 states have (on average 2.111111111111111) internal successors, (171), 80 states have internal predecessors, (171), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:38:31,370 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 181 transitions. [2021-05-03 00:38:31,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-05-03 00:38:31,370 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:38:31,370 INFO L523 BasicCegarLoop]: trace histogram [61, 61, 11, 11, 11, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:38:31,370 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-05-03 00:38:31,371 INFO L428 AbstractCegarLoop]: === Iteration 78 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:38:31,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:38:31,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1702132696, now seen corresponding path program 72 times [2021-05-03 00:38:31,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:38:31,371 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831556410] [2021-05-03 00:38:31,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:38:32,255 WARN L205 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 154 [2021-05-03 00:38:32,568 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_13343) (< v_main_~c~0_1326 5) (<= 5 v_main_~d~0_3672)) InVars {main_~c~0=v_main_~c~0_1326, main_~d~0=v_main_~d~0_3672, main_~e~0=v_main_~e~0_13343} OutVars{main_~c~0=v_main_~c~0_1326, main_~d~0=v_main_~d~0_3672, main_~e~0=v_main_~e~0_13343} AuxVars[] AssignedVars[] [2021-05-03 00:38:32,570 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:38:32,572 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:32,576 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:38:32,637 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:38:32,680 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_13346) (< v_main_~d~0_3674 5)) InVars {main_~d~0=v_main_~d~0_3674, main_~e~0=v_main_~e~0_13346} OutVars{main_~d~0=v_main_~d~0_3674, main_~e~0=v_main_~e~0_13346} AuxVars[] AssignedVars[] [2021-05-03 00:38:32,682 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:38:32,710 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:32,715 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:38:32,730 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:38:32,760 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_13348 5) InVars {main_~e~0=v_main_~e~0_13348} OutVars{main_~e~0=v_main_~e~0_13348} AuxVars[] AssignedVars[] [2021-05-03 00:38:32,762 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:38:32,763 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:32,771 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:38:32,794 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:38:32,820 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_13343) (< v_main_~c~0_1326 5) (<= 5 v_main_~d~0_3672)) InVars {main_~c~0=v_main_~c~0_1326, main_~d~0=v_main_~d~0_3672, main_~e~0=v_main_~e~0_13343} OutVars{main_~c~0=v_main_~c~0_1326, main_~d~0=v_main_~d~0_3672, main_~e~0=v_main_~e~0_13343} AuxVars[] AssignedVars[] [2021-05-03 00:38:32,823 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:38:32,824 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:32,829 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:38:32,894 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:38:32,936 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_13346) (< v_main_~d~0_3674 5)) InVars {main_~d~0=v_main_~d~0_3674, main_~e~0=v_main_~e~0_13346} OutVars{main_~d~0=v_main_~d~0_3674, main_~e~0=v_main_~e~0_13346} AuxVars[] AssignedVars[] [2021-05-03 00:38:32,939 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:38:32,969 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:32,974 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:38:32,991 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:38:33,024 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_13348 5) InVars {main_~e~0=v_main_~e~0_13348} OutVars{main_~e~0=v_main_~e~0_13348} AuxVars[] AssignedVars[] [2021-05-03 00:38:33,026 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:38:33,038 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:33,047 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:38:33,058 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:38:33,078 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:38:33,079 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:33,110 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:38:33,133 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_13343) (< v_main_~c~0_1326 5) (<= 5 v_main_~d~0_3672)) InVars {main_~c~0=v_main_~c~0_1326, main_~d~0=v_main_~d~0_3672, main_~e~0=v_main_~e~0_13343} OutVars{main_~c~0=v_main_~c~0_1326, main_~d~0=v_main_~d~0_3672, main_~e~0=v_main_~e~0_13343} AuxVars[] AssignedVars[] [2021-05-03 00:38:33,135 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:38:33,137 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:33,141 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:38:33,207 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:38:33,249 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_13346) (< v_main_~d~0_3674 5)) InVars {main_~d~0=v_main_~d~0_3674, main_~e~0=v_main_~e~0_13346} OutVars{main_~d~0=v_main_~d~0_3674, main_~e~0=v_main_~e~0_13346} AuxVars[] AssignedVars[] [2021-05-03 00:38:33,251 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:38:33,279 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:33,282 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:38:33,300 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:38:33,329 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_13348 5) InVars {main_~e~0=v_main_~e~0_13348} OutVars{main_~e~0=v_main_~e~0_13348} AuxVars[] AssignedVars[] [2021-05-03 00:38:33,331 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:38:33,332 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:33,340 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:38:33,365 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:38:33,398 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:38:33,399 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:33,441 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:38:33,463 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:38:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:38:33,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:38:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:38:33,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:38:38,886 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:38:38,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1831556410] [2021-05-03 00:38:38,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1831556410] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:38:38,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:38:38,887 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [82] imperfect sequences [] total 82 [2021-05-03 00:38:38,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611318483] [2021-05-03 00:38:38,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 82 states [2021-05-03 00:38:38,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:38:38,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2021-05-03 00:38:38,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=6275, Unknown=0, NotChecked=0, Total=6642 [2021-05-03 00:38:38,888 INFO L87 Difference]: Start difference. First operand 177 states and 181 transitions. Second operand has 82 states, 82 states have (on average 2.1097560975609757) internal successors, (173), 81 states have internal predecessors, (173), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:38:50,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:38:50,905 INFO L93 Difference]: Finished difference Result 209 states and 225 transitions. [2021-05-03 00:38:50,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-05-03 00:38:50,906 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 82 states have (on average 2.1097560975609757) internal successors, (173), 81 states have internal predecessors, (173), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2021-05-03 00:38:50,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:38:50,907 INFO L225 Difference]: With dead ends: 209 [2021-05-03 00:38:50,907 INFO L226 Difference]: Without dead ends: 196 [2021-05-03 00:38:50,909 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 74 SyntacticMatches, 23 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6847 ImplicationChecksByTransitivity, 11703.4ms TimeCoverageRelationStatistics Valid=1095, Invalid=24665, Unknown=0, NotChecked=0, Total=25760 [2021-05-03 00:38:50,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-05-03 00:38:51,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 179. [2021-05-03 00:38:51,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 175 states have (on average 1.0285714285714285) internal successors, (180), 175 states have internal predecessors, (180), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:38:51,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 183 transitions. [2021-05-03 00:38:51,085 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 183 transitions. Word has length 176 [2021-05-03 00:38:51,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:38:51,086 INFO L480 AbstractCegarLoop]: Abstraction has 179 states and 183 transitions. [2021-05-03 00:38:51,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 82 states, 82 states have (on average 2.1097560975609757) internal successors, (173), 81 states have internal predecessors, (173), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:38:51,086 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 183 transitions. [2021-05-03 00:38:51,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-05-03 00:38:51,086 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:38:51,087 INFO L523 BasicCegarLoop]: trace histogram [62, 62, 11, 11, 11, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:38:51,087 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-05-03 00:38:51,087 INFO L428 AbstractCegarLoop]: === Iteration 79 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:38:51,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:38:51,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1566887046, now seen corresponding path program 73 times [2021-05-03 00:38:51,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:38:51,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2011976905] [2021-05-03 00:38:51,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:38:51,977 WARN L205 SmtUtils]: Spent 864.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 155 [2021-05-03 00:38:52,305 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1354 5) (<= 5 v_main_~e~0_13678) (<= 5 v_main_~d~0_3755)) InVars {main_~c~0=v_main_~c~0_1354, main_~d~0=v_main_~d~0_3755, main_~e~0=v_main_~e~0_13678} OutVars{main_~c~0=v_main_~c~0_1354, main_~d~0=v_main_~d~0_3755, main_~e~0=v_main_~e~0_13678} AuxVars[] AssignedVars[] [2021-05-03 00:38:52,308 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:38:52,352 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:52,357 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:38:52,386 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:38:52,432 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3757 5) (<= 5 v_main_~e~0_13681)) InVars {main_~d~0=v_main_~d~0_3757, main_~e~0=v_main_~e~0_13681} OutVars{main_~d~0=v_main_~d~0_3757, main_~e~0=v_main_~e~0_13681} AuxVars[] AssignedVars[] [2021-05-03 00:38:52,433 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:38:52,460 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:52,464 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:38:52,480 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:38:52,511 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_13683 5) InVars {main_~e~0=v_main_~e~0_13683} OutVars{main_~e~0=v_main_~e~0_13683} AuxVars[] AssignedVars[] [2021-05-03 00:38:52,513 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:38:52,525 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:52,533 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:38:52,545 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:38:52,569 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1354 5) (<= 5 v_main_~e~0_13678) (<= 5 v_main_~d~0_3755)) InVars {main_~c~0=v_main_~c~0_1354, main_~d~0=v_main_~d~0_3755, main_~e~0=v_main_~e~0_13678} OutVars{main_~c~0=v_main_~c~0_1354, main_~d~0=v_main_~d~0_3755, main_~e~0=v_main_~e~0_13678} AuxVars[] AssignedVars[] [2021-05-03 00:38:52,571 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:38:52,572 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:52,577 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:38:52,638 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:38:52,682 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3757 5) (<= 5 v_main_~e~0_13681)) InVars {main_~d~0=v_main_~d~0_3757, main_~e~0=v_main_~e~0_13681} OutVars{main_~d~0=v_main_~d~0_3757, main_~e~0=v_main_~e~0_13681} AuxVars[] AssignedVars[] [2021-05-03 00:38:52,684 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:38:52,685 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:52,689 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:38:52,730 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:38:52,762 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_13683 5) InVars {main_~e~0=v_main_~e~0_13683} OutVars{main_~e~0=v_main_~e~0_13683} AuxVars[] AssignedVars[] [2021-05-03 00:38:52,764 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:38:52,765 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:52,773 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:38:52,797 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:38:52,817 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:38:52,818 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:52,848 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:38:52,872 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1354 5) (<= 5 v_main_~e~0_13678) (<= 5 v_main_~d~0_3755)) InVars {main_~c~0=v_main_~c~0_1354, main_~d~0=v_main_~d~0_3755, main_~e~0=v_main_~e~0_13678} OutVars{main_~c~0=v_main_~c~0_1354, main_~d~0=v_main_~d~0_3755, main_~e~0=v_main_~e~0_13678} AuxVars[] AssignedVars[] [2021-05-03 00:38:52,874 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:38:52,922 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:52,927 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:38:52,957 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:38:53,003 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3757 5) (<= 5 v_main_~e~0_13681)) InVars {main_~d~0=v_main_~d~0_3757, main_~e~0=v_main_~e~0_13681} OutVars{main_~d~0=v_main_~d~0_3757, main_~e~0=v_main_~e~0_13681} AuxVars[] AssignedVars[] [2021-05-03 00:38:53,004 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:38:53,005 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:53,010 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:38:53,049 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:38:53,081 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_13683 5) InVars {main_~e~0=v_main_~e~0_13683} OutVars{main_~e~0=v_main_~e~0_13683} AuxVars[] AssignedVars[] [2021-05-03 00:38:53,083 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:38:53,084 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:53,092 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:38:53,118 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:38:53,154 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:38:53,156 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:38:53,196 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:38:53,219 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:38:53,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:38:53,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:38:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:38:53,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:38:59,553 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:38:59,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2011976905] [2021-05-03 00:38:59,553 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2011976905] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:38:59,553 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:38:59,553 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [83] imperfect sequences [] total 83 [2021-05-03 00:38:59,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488174445] [2021-05-03 00:38:59,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 83 states [2021-05-03 00:38:59,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:38:59,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2021-05-03 00:38:59,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=371, Invalid=6435, Unknown=0, NotChecked=0, Total=6806 [2021-05-03 00:38:59,555 INFO L87 Difference]: Start difference. First operand 179 states and 183 transitions. Second operand has 83 states, 83 states have (on average 2.108433734939759) internal successors, (175), 82 states have internal predecessors, (175), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:39:13,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:39:13,430 INFO L93 Difference]: Finished difference Result 211 states and 227 transitions. [2021-05-03 00:39:13,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-05-03 00:39:13,432 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 83 states have (on average 2.108433734939759) internal successors, (175), 82 states have internal predecessors, (175), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 178 [2021-05-03 00:39:13,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:39:13,433 INFO L225 Difference]: With dead ends: 211 [2021-05-03 00:39:13,433 INFO L226 Difference]: Without dead ends: 198 [2021-05-03 00:39:13,435 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 74 SyntacticMatches, 24 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6983 ImplicationChecksByTransitivity, 13449.3ms TimeCoverageRelationStatistics Valid=1107, Invalid=25299, Unknown=0, NotChecked=0, Total=26406 [2021-05-03 00:39:13,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-05-03 00:39:13,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 181. [2021-05-03 00:39:13,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 177 states have (on average 1.0282485875706215) internal successors, (182), 177 states have internal predecessors, (182), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:39:13,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 185 transitions. [2021-05-03 00:39:13,647 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 185 transitions. Word has length 178 [2021-05-03 00:39:13,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:39:13,647 INFO L480 AbstractCegarLoop]: Abstraction has 181 states and 185 transitions. [2021-05-03 00:39:13,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 83 states, 83 states have (on average 2.108433734939759) internal successors, (175), 82 states have internal predecessors, (175), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:39:13,647 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 185 transitions. [2021-05-03 00:39:13,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-05-03 00:39:13,649 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:39:13,650 INFO L523 BasicCegarLoop]: trace histogram [63, 63, 11, 11, 11, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:39:13,650 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-05-03 00:39:13,650 INFO L428 AbstractCegarLoop]: === Iteration 80 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:39:13,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:39:13,650 INFO L82 PathProgramCache]: Analyzing trace with hash -821201564, now seen corresponding path program 74 times [2021-05-03 00:39:13,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:39:13,650 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1507342759] [2021-05-03 00:39:13,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:39:14,592 WARN L205 SmtUtils]: Spent 925.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 157 [2021-05-03 00:39:14,944 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_14018) (<= 5 v_main_~d~0_3838) (< v_main_~c~0_1382 5)) InVars {main_~c~0=v_main_~c~0_1382, main_~d~0=v_main_~d~0_3838, main_~e~0=v_main_~e~0_14018} OutVars{main_~c~0=v_main_~c~0_1382, main_~d~0=v_main_~d~0_3838, main_~e~0=v_main_~e~0_14018} AuxVars[] AssignedVars[] [2021-05-03 00:39:14,947 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:39:14,992 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:14,997 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:39:15,022 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:39:15,098 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_14021) (< v_main_~d~0_3840 5)) InVars {main_~d~0=v_main_~d~0_3840, main_~e~0=v_main_~e~0_14021} OutVars{main_~d~0=v_main_~d~0_3840, main_~e~0=v_main_~e~0_14021} AuxVars[] AssignedVars[] [2021-05-03 00:39:15,100 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:39:15,142 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:15,147 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:39:15,181 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:39:15,214 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_14023 5) InVars {main_~e~0=v_main_~e~0_14023} OutVars{main_~e~0=v_main_~e~0_14023} AuxVars[] AssignedVars[] [2021-05-03 00:39:15,216 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:39:15,217 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:15,224 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:39:15,249 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:39:15,274 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_14018) (<= 5 v_main_~d~0_3838) (< v_main_~c~0_1382 5)) InVars {main_~c~0=v_main_~c~0_1382, main_~d~0=v_main_~d~0_3838, main_~e~0=v_main_~e~0_14018} OutVars{main_~c~0=v_main_~c~0_1382, main_~d~0=v_main_~d~0_3838, main_~e~0=v_main_~e~0_14018} AuxVars[] AssignedVars[] [2021-05-03 00:39:15,276 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:39:15,278 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:15,283 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:39:15,352 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:39:15,402 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_14021) (< v_main_~d~0_3840 5)) InVars {main_~d~0=v_main_~d~0_3840, main_~e~0=v_main_~e~0_14021} OutVars{main_~d~0=v_main_~d~0_3840, main_~e~0=v_main_~e~0_14021} AuxVars[] AssignedVars[] [2021-05-03 00:39:15,404 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:39:15,434 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:15,438 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:39:15,457 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:39:15,503 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_14023 5) InVars {main_~e~0=v_main_~e~0_14023} OutVars{main_~e~0=v_main_~e~0_14023} AuxVars[] AssignedVars[] [2021-05-03 00:39:15,504 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:39:15,515 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:15,521 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:39:15,531 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:39:15,549 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:39:15,550 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:15,575 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:39:15,595 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_14018) (<= 5 v_main_~d~0_3838) (< v_main_~c~0_1382 5)) InVars {main_~c~0=v_main_~c~0_1382, main_~d~0=v_main_~d~0_3838, main_~e~0=v_main_~e~0_14018} OutVars{main_~c~0=v_main_~c~0_1382, main_~d~0=v_main_~d~0_3838, main_~e~0=v_main_~e~0_14018} AuxVars[] AssignedVars[] [2021-05-03 00:39:15,597 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:39:15,598 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:15,603 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:39:15,655 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:39:15,703 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_14021) (< v_main_~d~0_3840 5)) InVars {main_~d~0=v_main_~d~0_3840, main_~e~0=v_main_~e~0_14021} OutVars{main_~d~0=v_main_~d~0_3840, main_~e~0=v_main_~e~0_14021} AuxVars[] AssignedVars[] [2021-05-03 00:39:15,705 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:39:15,706 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:15,710 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:39:15,752 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:39:15,783 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_14023 5) InVars {main_~e~0=v_main_~e~0_14023} OutVars{main_~e~0=v_main_~e~0_14023} AuxVars[] AssignedVars[] [2021-05-03 00:39:15,784 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:39:15,785 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:15,793 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:39:15,817 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:39:15,852 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:39:15,854 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:15,895 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:39:15,919 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:39:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:39:15,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:39:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:39:15,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:39:21,912 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:39:21,913 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1507342759] [2021-05-03 00:39:21,913 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1507342759] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:39:21,913 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:39:21,913 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [84] imperfect sequences [] total 84 [2021-05-03 00:39:21,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17019839] [2021-05-03 00:39:21,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 84 states [2021-05-03 00:39:21,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:39:21,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2021-05-03 00:39:21,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=375, Invalid=6597, Unknown=0, NotChecked=0, Total=6972 [2021-05-03 00:39:21,915 INFO L87 Difference]: Start difference. First operand 181 states and 185 transitions. Second operand has 84 states, 84 states have (on average 2.107142857142857) internal successors, (177), 83 states have internal predecessors, (177), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:39:36,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:39:36,723 INFO L93 Difference]: Finished difference Result 213 states and 229 transitions. [2021-05-03 00:39:36,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-05-03 00:39:36,724 INFO L78 Accepts]: Start accepts. Automaton has has 84 states, 84 states have (on average 2.107142857142857) internal successors, (177), 83 states have internal predecessors, (177), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 180 [2021-05-03 00:39:36,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:39:36,725 INFO L225 Difference]: With dead ends: 213 [2021-05-03 00:39:36,725 INFO L226 Difference]: Without dead ends: 200 [2021-05-03 00:39:36,727 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 78 SyntacticMatches, 21 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7018 ImplicationChecksByTransitivity, 13671.2ms TimeCoverageRelationStatistics Valid=1119, Invalid=25941, Unknown=0, NotChecked=0, Total=27060 [2021-05-03 00:39:36,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-05-03 00:39:36,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 183. [2021-05-03 00:39:36,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 179 states have (on average 1.0279329608938548) internal successors, (184), 179 states have internal predecessors, (184), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:39:36,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 187 transitions. [2021-05-03 00:39:36,899 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 187 transitions. Word has length 180 [2021-05-03 00:39:36,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:39:36,899 INFO L480 AbstractCegarLoop]: Abstraction has 183 states and 187 transitions. [2021-05-03 00:39:36,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 84 states, 84 states have (on average 2.107142857142857) internal successors, (177), 83 states have internal predecessors, (177), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:39:36,899 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 187 transitions. [2021-05-03 00:39:36,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-05-03 00:39:36,900 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:39:36,900 INFO L523 BasicCegarLoop]: trace histogram [64, 64, 11, 11, 11, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:39:36,900 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-05-03 00:39:36,900 INFO L428 AbstractCegarLoop]: === Iteration 81 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:39:36,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:39:36,901 INFO L82 PathProgramCache]: Analyzing trace with hash 2033147586, now seen corresponding path program 75 times [2021-05-03 00:39:36,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:39:36,902 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349902827] [2021-05-03 00:39:36,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:39:37,751 WARN L205 SmtUtils]: Spent 834.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 154 [2021-05-03 00:39:38,125 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1410 5) (<= 5 v_main_~d~0_3921) (<= 5 v_main_~e~0_14363)) InVars {main_~c~0=v_main_~c~0_1410, main_~d~0=v_main_~d~0_3921, main_~e~0=v_main_~e~0_14363} OutVars{main_~c~0=v_main_~c~0_1410, main_~d~0=v_main_~d~0_3921, main_~e~0=v_main_~e~0_14363} AuxVars[] AssignedVars[] [2021-05-03 00:39:38,128 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:39:38,130 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:38,135 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:39:38,197 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:39:38,244 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3923 5) (<= 5 v_main_~e~0_14366)) InVars {main_~d~0=v_main_~d~0_3923, main_~e~0=v_main_~e~0_14366} OutVars{main_~d~0=v_main_~d~0_3923, main_~e~0=v_main_~e~0_14366} AuxVars[] AssignedVars[] [2021-05-03 00:39:38,246 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:39:38,247 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:38,252 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:39:38,293 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:39:38,328 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_14368 5) InVars {main_~e~0=v_main_~e~0_14368} OutVars{main_~e~0=v_main_~e~0_14368} AuxVars[] AssignedVars[] [2021-05-03 00:39:38,330 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:39:38,344 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:38,352 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:39:38,364 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:39:38,390 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1410 5) (<= 5 v_main_~d~0_3921) (<= 5 v_main_~e~0_14363)) InVars {main_~c~0=v_main_~c~0_1410, main_~d~0=v_main_~d~0_3921, main_~e~0=v_main_~e~0_14363} OutVars{main_~c~0=v_main_~c~0_1410, main_~d~0=v_main_~d~0_3921, main_~e~0=v_main_~e~0_14363} AuxVars[] AssignedVars[] [2021-05-03 00:39:38,393 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:39:38,440 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:38,446 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:39:38,476 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:39:38,526 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3923 5) (<= 5 v_main_~e~0_14366)) InVars {main_~d~0=v_main_~d~0_3923, main_~e~0=v_main_~e~0_14366} OutVars{main_~d~0=v_main_~d~0_3923, main_~e~0=v_main_~e~0_14366} AuxVars[] AssignedVars[] [2021-05-03 00:39:38,528 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:39:38,529 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:38,533 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:39:38,577 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:39:38,612 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_14368 5) InVars {main_~e~0=v_main_~e~0_14368} OutVars{main_~e~0=v_main_~e~0_14368} AuxVars[] AssignedVars[] [2021-05-03 00:39:38,614 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:39:38,627 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:38,635 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:39:38,647 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:39:38,670 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:39:38,671 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:38,707 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:39:38,736 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1410 5) (<= 5 v_main_~d~0_3921) (<= 5 v_main_~e~0_14363)) InVars {main_~c~0=v_main_~c~0_1410, main_~d~0=v_main_~d~0_3921, main_~e~0=v_main_~e~0_14363} OutVars{main_~c~0=v_main_~c~0_1410, main_~d~0=v_main_~d~0_3921, main_~e~0=v_main_~e~0_14363} AuxVars[] AssignedVars[] [2021-05-03 00:39:38,739 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:39:38,741 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:38,747 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:39:38,819 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:39:38,869 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_3923 5) (<= 5 v_main_~e~0_14366)) InVars {main_~d~0=v_main_~d~0_3923, main_~e~0=v_main_~e~0_14366} OutVars{main_~d~0=v_main_~d~0_3923, main_~e~0=v_main_~e~0_14366} AuxVars[] AssignedVars[] [2021-05-03 00:39:38,872 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:39:38,900 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:38,905 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:39:38,923 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:39:38,958 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_14368 5) InVars {main_~e~0=v_main_~e~0_14368} OutVars{main_~e~0=v_main_~e~0_14368} AuxVars[] AssignedVars[] [2021-05-03 00:39:38,960 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:39:38,961 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:38,969 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:39:38,998 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:39:39,035 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:39:39,037 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:39,080 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:39:39,104 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:39:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:39:39,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:39:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:39:39,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:39:45,473 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:39:45,474 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349902827] [2021-05-03 00:39:45,474 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [349902827] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:39:45,474 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:39:45,474 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [85] imperfect sequences [] total 85 [2021-05-03 00:39:45,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20322778] [2021-05-03 00:39:45,474 INFO L460 AbstractCegarLoop]: Interpolant automaton has 85 states [2021-05-03 00:39:45,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:39:45,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2021-05-03 00:39:45,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=379, Invalid=6761, Unknown=0, NotChecked=0, Total=7140 [2021-05-03 00:39:45,475 INFO L87 Difference]: Start difference. First operand 183 states and 187 transitions. Second operand has 85 states, 85 states have (on average 2.1058823529411765) internal successors, (179), 84 states have internal predecessors, (179), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:39:56,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:39:56,732 INFO L93 Difference]: Finished difference Result 215 states and 231 transitions. [2021-05-03 00:39:56,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-05-03 00:39:56,732 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 85 states have (on average 2.1058823529411765) internal successors, (179), 84 states have internal predecessors, (179), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 182 [2021-05-03 00:39:56,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:39:56,733 INFO L225 Difference]: With dead ends: 215 [2021-05-03 00:39:56,733 INFO L226 Difference]: Without dead ends: 202 [2021-05-03 00:39:56,735 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 76 SyntacticMatches, 24 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7274 ImplicationChecksByTransitivity, 12044.0ms TimeCoverageRelationStatistics Valid=1131, Invalid=26591, Unknown=0, NotChecked=0, Total=27722 [2021-05-03 00:39:56,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-05-03 00:39:56,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 185. [2021-05-03 00:39:56,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 181 states have (on average 1.0276243093922652) internal successors, (186), 181 states have internal predecessors, (186), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:39:56,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 189 transitions. [2021-05-03 00:39:56,985 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 189 transitions. Word has length 182 [2021-05-03 00:39:56,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:39:56,985 INFO L480 AbstractCegarLoop]: Abstraction has 185 states and 189 transitions. [2021-05-03 00:39:56,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 85 states, 85 states have (on average 2.1058823529411765) internal successors, (179), 84 states have internal predecessors, (179), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:39:56,985 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 189 transitions. [2021-05-03 00:39:56,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-05-03 00:39:56,986 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:39:56,986 INFO L523 BasicCegarLoop]: trace histogram [65, 65, 11, 11, 11, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:39:56,986 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-05-03 00:39:56,986 INFO L428 AbstractCegarLoop]: === Iteration 82 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:39:56,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:39:56,986 INFO L82 PathProgramCache]: Analyzing trace with hash 578578592, now seen corresponding path program 76 times [2021-05-03 00:39:56,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:39:56,987 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1700796844] [2021-05-03 00:39:56,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:39:57,659 WARN L205 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 156 [2021-05-03 00:39:57,895 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_4004) (<= 5 v_main_~e~0_14713) (< v_main_~c~0_1438 5)) InVars {main_~c~0=v_main_~c~0_1438, main_~d~0=v_main_~d~0_4004, main_~e~0=v_main_~e~0_14713} OutVars{main_~c~0=v_main_~c~0_1438, main_~d~0=v_main_~d~0_4004, main_~e~0=v_main_~e~0_14713} AuxVars[] AssignedVars[] [2021-05-03 00:39:57,896 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:39:57,921 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:57,924 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:39:57,940 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:39:57,970 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_14716) (< v_main_~d~0_4006 5)) InVars {main_~d~0=v_main_~d~0_4006, main_~e~0=v_main_~e~0_14716} OutVars{main_~d~0=v_main_~d~0_4006, main_~e~0=v_main_~e~0_14716} AuxVars[] AssignedVars[] [2021-05-03 00:39:57,971 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:39:57,987 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:57,990 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:39:58,000 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:39:58,022 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_14718 5) InVars {main_~e~0=v_main_~e~0_14718} OutVars{main_~e~0=v_main_~e~0_14718} AuxVars[] AssignedVars[] [2021-05-03 00:39:58,022 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:39:58,023 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:58,028 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:39:58,042 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:39:58,058 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_4004) (<= 5 v_main_~e~0_14713) (< v_main_~c~0_1438 5)) InVars {main_~c~0=v_main_~c~0_1438, main_~d~0=v_main_~d~0_4004, main_~e~0=v_main_~e~0_14713} OutVars{main_~c~0=v_main_~c~0_1438, main_~d~0=v_main_~d~0_4004, main_~e~0=v_main_~e~0_14713} AuxVars[] AssignedVars[] [2021-05-03 00:39:58,059 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:39:58,060 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:58,063 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:39:58,101 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:39:58,133 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_14716) (< v_main_~d~0_4006 5)) InVars {main_~d~0=v_main_~d~0_4006, main_~e~0=v_main_~e~0_14716} OutVars{main_~d~0=v_main_~d~0_4006, main_~e~0=v_main_~e~0_14716} AuxVars[] AssignedVars[] [2021-05-03 00:39:58,134 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:39:58,135 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:58,137 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:39:58,162 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:39:58,185 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_14718 5) InVars {main_~e~0=v_main_~e~0_14718} OutVars{main_~e~0=v_main_~e~0_14718} AuxVars[] AssignedVars[] [2021-05-03 00:39:58,186 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:39:58,193 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:58,198 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:39:58,206 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:39:58,221 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:39:58,221 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:58,241 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:39:58,259 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_4004) (<= 5 v_main_~e~0_14713) (< v_main_~c~0_1438 5)) InVars {main_~c~0=v_main_~c~0_1438, main_~d~0=v_main_~d~0_4004, main_~e~0=v_main_~e~0_14713} OutVars{main_~c~0=v_main_~c~0_1438, main_~d~0=v_main_~d~0_4004, main_~e~0=v_main_~e~0_14713} AuxVars[] AssignedVars[] [2021-05-03 00:39:58,260 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:39:58,287 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:58,290 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:39:58,306 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:39:58,338 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_14716) (< v_main_~d~0_4006 5)) InVars {main_~d~0=v_main_~d~0_4006, main_~e~0=v_main_~e~0_14716} OutVars{main_~d~0=v_main_~d~0_4006, main_~e~0=v_main_~e~0_14716} AuxVars[] AssignedVars[] [2021-05-03 00:39:58,340 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:39:58,340 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:58,343 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:39:58,368 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:39:58,391 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_14718 5) InVars {main_~e~0=v_main_~e~0_14718} OutVars{main_~e~0=v_main_~e~0_14718} AuxVars[] AssignedVars[] [2021-05-03 00:39:58,392 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:39:58,392 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:58,397 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:39:58,412 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:39:58,440 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:39:58,441 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:39:58,472 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:39:58,490 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:39:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:39:58,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:39:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:39:58,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:40:02,937 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:40:02,937 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1700796844] [2021-05-03 00:40:02,937 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1700796844] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:40:02,937 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:40:02,937 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [86] imperfect sequences [] total 86 [2021-05-03 00:40:02,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080255771] [2021-05-03 00:40:02,937 INFO L460 AbstractCegarLoop]: Interpolant automaton has 86 states [2021-05-03 00:40:02,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:40:02,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2021-05-03 00:40:02,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=383, Invalid=6927, Unknown=0, NotChecked=0, Total=7310 [2021-05-03 00:40:02,938 INFO L87 Difference]: Start difference. First operand 185 states and 189 transitions. Second operand has 86 states, 86 states have (on average 2.104651162790698) internal successors, (181), 85 states have internal predecessors, (181), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:40:17,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:40:17,018 INFO L93 Difference]: Finished difference Result 219 states and 236 transitions. [2021-05-03 00:40:17,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-05-03 00:40:17,019 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 86 states have (on average 2.104651162790698) internal successors, (181), 85 states have internal predecessors, (181), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 184 [2021-05-03 00:40:17,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:40:17,020 INFO L225 Difference]: With dead ends: 219 [2021-05-03 00:40:17,020 INFO L226 Difference]: Without dead ends: 206 [2021-05-03 00:40:17,021 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 73 SyntacticMatches, 28 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7582 ImplicationChecksByTransitivity, 10891.3ms TimeCoverageRelationStatistics Valid=1143, Invalid=27249, Unknown=0, NotChecked=0, Total=28392 [2021-05-03 00:40:17,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-05-03 00:40:17,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 189. [2021-05-03 00:40:17,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 185 states have (on average 1.027027027027027) internal successors, (190), 185 states have internal predecessors, (190), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:40:17,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 193 transitions. [2021-05-03 00:40:17,198 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 193 transitions. Word has length 184 [2021-05-03 00:40:17,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:40:17,198 INFO L480 AbstractCegarLoop]: Abstraction has 189 states and 193 transitions. [2021-05-03 00:40:17,198 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 86 states, 86 states have (on average 2.104651162790698) internal successors, (181), 85 states have internal predecessors, (181), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:40:17,198 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 193 transitions. [2021-05-03 00:40:17,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-05-03 00:40:17,199 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:40:17,199 INFO L523 BasicCegarLoop]: trace histogram [66, 66, 11, 11, 11, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:40:17,199 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-05-03 00:40:17,199 INFO L428 AbstractCegarLoop]: === Iteration 83 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:40:17,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:40:17,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1397853442, now seen corresponding path program 77 times [2021-05-03 00:40:17,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:40:17,199 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1671032789] [2021-05-03 00:40:17,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:40:17,931 WARN L205 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 153 [2021-05-03 00:40:18,198 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_4085) (< v_main_~c~0_1466 5) (<= 5 v_main_~e~0_15061)) InVars {main_~c~0=v_main_~c~0_1466, main_~d~0=v_main_~d~0_4085, main_~e~0=v_main_~e~0_15061} OutVars{main_~c~0=v_main_~c~0_1466, main_~d~0=v_main_~d~0_4085, main_~e~0=v_main_~e~0_15061} AuxVars[] AssignedVars[] [2021-05-03 00:40:18,200 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:40:18,234 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:18,238 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:40:18,258 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:40:18,297 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_4087 5) (<= 5 v_main_~e~0_15064)) InVars {main_~d~0=v_main_~d~0_4087, main_~e~0=v_main_~e~0_15064} OutVars{main_~d~0=v_main_~d~0_4087, main_~e~0=v_main_~e~0_15064} AuxVars[] AssignedVars[] [2021-05-03 00:40:18,299 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:40:18,300 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:18,303 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:40:18,330 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:40:18,357 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_15066 5) InVars {main_~e~0=v_main_~e~0_15066} OutVars{main_~e~0=v_main_~e~0_15066} AuxVars[] AssignedVars[] [2021-05-03 00:40:18,358 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:40:18,359 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:18,365 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:40:18,383 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:40:18,404 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_4085) (< v_main_~c~0_1466 5) (<= 5 v_main_~e~0_15061)) InVars {main_~c~0=v_main_~c~0_1466, main_~d~0=v_main_~d~0_4085, main_~e~0=v_main_~e~0_15061} OutVars{main_~c~0=v_main_~c~0_1466, main_~d~0=v_main_~d~0_4085, main_~e~0=v_main_~e~0_15061} AuxVars[] AssignedVars[] [2021-05-03 00:40:18,406 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:40:18,442 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:18,445 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:40:18,467 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:40:18,503 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_4087 5) (<= 5 v_main_~e~0_15064)) InVars {main_~d~0=v_main_~d~0_4087, main_~e~0=v_main_~e~0_15064} OutVars{main_~d~0=v_main_~d~0_4087, main_~e~0=v_main_~e~0_15064} AuxVars[] AssignedVars[] [2021-05-03 00:40:18,505 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:40:18,526 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:18,529 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:40:18,542 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:40:18,568 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_15066 5) InVars {main_~e~0=v_main_~e~0_15066} OutVars{main_~e~0=v_main_~e~0_15066} AuxVars[] AssignedVars[] [2021-05-03 00:40:18,570 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:40:18,586 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:18,593 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:40:18,612 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:40:18,631 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:40:18,632 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:18,657 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:40:18,677 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_4085) (< v_main_~c~0_1466 5) (<= 5 v_main_~e~0_15061)) InVars {main_~c~0=v_main_~c~0_1466, main_~d~0=v_main_~d~0_4085, main_~e~0=v_main_~e~0_15061} OutVars{main_~c~0=v_main_~c~0_1466, main_~d~0=v_main_~d~0_4085, main_~e~0=v_main_~e~0_15061} AuxVars[] AssignedVars[] [2021-05-03 00:40:18,678 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:40:18,681 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:18,685 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:40:18,732 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:40:18,770 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_4087 5) (<= 5 v_main_~e~0_15064)) InVars {main_~d~0=v_main_~d~0_4087, main_~e~0=v_main_~e~0_15064} OutVars{main_~d~0=v_main_~d~0_4087, main_~e~0=v_main_~e~0_15064} AuxVars[] AssignedVars[] [2021-05-03 00:40:18,772 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:40:18,772 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:18,776 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:40:18,804 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:40:18,830 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_15066 5) InVars {main_~e~0=v_main_~e~0_15066} OutVars{main_~e~0=v_main_~e~0_15066} AuxVars[] AssignedVars[] [2021-05-03 00:40:18,831 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:40:18,841 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:18,847 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:40:18,856 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:40:18,888 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:40:18,890 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:18,924 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:40:18,943 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:40:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:40:18,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:40:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:40:18,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:40:24,043 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:40:24,043 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1671032789] [2021-05-03 00:40:24,043 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1671032789] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:40:24,043 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:40:24,043 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [87] imperfect sequences [] total 87 [2021-05-03 00:40:24,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021919163] [2021-05-03 00:40:24,043 INFO L460 AbstractCegarLoop]: Interpolant automaton has 87 states [2021-05-03 00:40:24,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:40:24,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2021-05-03 00:40:24,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=387, Invalid=7095, Unknown=0, NotChecked=0, Total=7482 [2021-05-03 00:40:24,044 INFO L87 Difference]: Start difference. First operand 189 states and 193 transitions. Second operand has 87 states, 87 states have (on average 2.103448275862069) internal successors, (183), 86 states have internal predecessors, (183), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:40:35,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:40:35,222 INFO L93 Difference]: Finished difference Result 220 states and 236 transitions. [2021-05-03 00:40:35,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-05-03 00:40:35,224 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 2.103448275862069) internal successors, (183), 86 states have internal predecessors, (183), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 186 [2021-05-03 00:40:35,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:40:35,245 INFO L225 Difference]: With dead ends: 220 [2021-05-03 00:40:35,245 INFO L226 Difference]: Without dead ends: 207 [2021-05-03 00:40:35,246 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 70 SyntacticMatches, 32 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7854 ImplicationChecksByTransitivity, 10887.5ms TimeCoverageRelationStatistics Valid=1155, Invalid=27915, Unknown=0, NotChecked=0, Total=29070 [2021-05-03 00:40:35,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-05-03 00:40:35,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 191. [2021-05-03 00:40:35,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 187 states have (on average 1.0267379679144386) internal successors, (192), 187 states have internal predecessors, (192), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:40:35,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 195 transitions. [2021-05-03 00:40:35,463 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 195 transitions. Word has length 186 [2021-05-03 00:40:35,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:40:35,464 INFO L480 AbstractCegarLoop]: Abstraction has 191 states and 195 transitions. [2021-05-03 00:40:35,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 87 states, 87 states have (on average 2.103448275862069) internal successors, (183), 86 states have internal predecessors, (183), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:40:35,464 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 195 transitions. [2021-05-03 00:40:35,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-05-03 00:40:35,464 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:40:35,465 INFO L523 BasicCegarLoop]: trace histogram [66, 66, 12, 12, 12, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:40:35,465 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-05-03 00:40:35,465 INFO L428 AbstractCegarLoop]: === Iteration 84 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:40:35,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:40:35,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1335235409, now seen corresponding path program 78 times [2021-05-03 00:40:35,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:40:35,465 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636574843] [2021-05-03 00:40:35,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:40:36,274 WARN L205 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 154 [2021-05-03 00:40:36,558 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1494 5) (<= 5 v_main_~e~0_15414) (<= 5 v_main_~d~0_4170)) InVars {main_~c~0=v_main_~c~0_1494, main_~d~0=v_main_~d~0_4170, main_~e~0=v_main_~e~0_15414} OutVars{main_~c~0=v_main_~c~0_1494, main_~d~0=v_main_~d~0_4170, main_~e~0=v_main_~e~0_15414} AuxVars[] AssignedVars[] [2021-05-03 00:40:36,560 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:40:36,597 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:36,601 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:40:36,625 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:40:36,686 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_15417) (< v_main_~d~0_4172 5)) InVars {main_~d~0=v_main_~d~0_4172, main_~e~0=v_main_~e~0_15417} OutVars{main_~d~0=v_main_~d~0_4172, main_~e~0=v_main_~e~0_15417} AuxVars[] AssignedVars[] [2021-05-03 00:40:36,688 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:40:36,689 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:36,693 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:40:36,726 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:40:36,759 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_15419 5) InVars {main_~e~0=v_main_~e~0_15419} OutVars{main_~e~0=v_main_~e~0_15419} AuxVars[] AssignedVars[] [2021-05-03 00:40:36,760 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:40:36,772 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:36,778 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:40:36,788 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:40:36,811 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1494 5) (<= 5 v_main_~e~0_15414) (<= 5 v_main_~d~0_4170)) InVars {main_~c~0=v_main_~c~0_1494, main_~d~0=v_main_~d~0_4170, main_~e~0=v_main_~e~0_15414} OutVars{main_~c~0=v_main_~c~0_1494, main_~d~0=v_main_~d~0_4170, main_~e~0=v_main_~e~0_15414} AuxVars[] AssignedVars[] [2021-05-03 00:40:36,813 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:40:36,814 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:36,818 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:40:36,869 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:40:36,908 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_15417) (< v_main_~d~0_4172 5)) InVars {main_~d~0=v_main_~d~0_4172, main_~e~0=v_main_~e~0_15417} OutVars{main_~d~0=v_main_~d~0_4172, main_~e~0=v_main_~e~0_15417} AuxVars[] AssignedVars[] [2021-05-03 00:40:36,909 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:40:36,933 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:36,936 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:40:36,950 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:40:36,978 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_15419 5) InVars {main_~e~0=v_main_~e~0_15419} OutVars{main_~e~0=v_main_~e~0_15419} AuxVars[] AssignedVars[] [2021-05-03 00:40:36,979 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:40:36,988 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:36,995 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:40:37,005 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:40:37,022 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:40:37,023 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:37,047 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:40:37,066 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1494 5) (<= 5 v_main_~e~0_15414) (<= 5 v_main_~d~0_4170)) InVars {main_~c~0=v_main_~c~0_1494, main_~d~0=v_main_~d~0_4170, main_~e~0=v_main_~e~0_15414} OutVars{main_~c~0=v_main_~c~0_1494, main_~d~0=v_main_~d~0_4170, main_~e~0=v_main_~e~0_15414} AuxVars[] AssignedVars[] [2021-05-03 00:40:37,068 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:40:37,108 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:37,111 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:40:37,130 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:40:37,168 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_15417) (< v_main_~d~0_4172 5)) InVars {main_~d~0=v_main_~d~0_4172, main_~e~0=v_main_~e~0_15417} OutVars{main_~d~0=v_main_~d~0_4172, main_~e~0=v_main_~e~0_15417} AuxVars[] AssignedVars[] [2021-05-03 00:40:37,170 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:40:37,193 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:37,197 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:40:37,212 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:40:37,238 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_15419 5) InVars {main_~e~0=v_main_~e~0_15419} OutVars{main_~e~0=v_main_~e~0_15419} AuxVars[] AssignedVars[] [2021-05-03 00:40:37,239 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:40:37,249 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:37,255 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:40:37,264 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:40:37,295 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:40:37,296 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:37,329 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:40:37,348 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:40:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:40:37,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:40:37,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:40:37,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:40:42,708 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:40:42,709 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [636574843] [2021-05-03 00:40:42,709 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [636574843] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:40:42,709 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:40:42,709 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [88] imperfect sequences [] total 88 [2021-05-03 00:40:42,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944576982] [2021-05-03 00:40:42,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 88 states [2021-05-03 00:40:42,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:40:42,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2021-05-03 00:40:42,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=391, Invalid=7265, Unknown=0, NotChecked=0, Total=7656 [2021-05-03 00:40:42,710 INFO L87 Difference]: Start difference. First operand 191 states and 195 transitions. Second operand has 88 states, 88 states have (on average 2.1136363636363638) internal successors, (186), 87 states have internal predecessors, (186), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:40:55,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:40:55,072 INFO L93 Difference]: Finished difference Result 222 states and 238 transitions. [2021-05-03 00:40:55,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-05-03 00:40:55,073 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 88 states have (on average 2.1136363636363638) internal successors, (186), 87 states have internal predecessors, (186), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 189 [2021-05-03 00:40:55,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:40:55,073 INFO L225 Difference]: With dead ends: 222 [2021-05-03 00:40:55,073 INFO L226 Difference]: Without dead ends: 209 [2021-05-03 00:40:55,075 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 72 SyntacticMatches, 32 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8143 ImplicationChecksByTransitivity, 11535.8ms TimeCoverageRelationStatistics Valid=1167, Invalid=28589, Unknown=0, NotChecked=0, Total=29756 [2021-05-03 00:40:55,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-05-03 00:40:55,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 192. [2021-05-03 00:40:55,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 188 states have (on average 1.0265957446808511) internal successors, (193), 188 states have internal predecessors, (193), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:40:55,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 196 transitions. [2021-05-03 00:40:55,277 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 196 transitions. Word has length 189 [2021-05-03 00:40:55,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:40:55,277 INFO L480 AbstractCegarLoop]: Abstraction has 192 states and 196 transitions. [2021-05-03 00:40:55,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 88 states, 88 states have (on average 2.1136363636363638) internal successors, (186), 87 states have internal predecessors, (186), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:40:55,278 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 196 transitions. [2021-05-03 00:40:55,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-05-03 00:40:55,278 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:40:55,278 INFO L523 BasicCegarLoop]: trace histogram [67, 67, 12, 12, 12, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:40:55,279 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-05-03 00:40:55,279 INFO L428 AbstractCegarLoop]: === Iteration 85 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:40:55,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:40:55,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1967861581, now seen corresponding path program 79 times [2021-05-03 00:40:55,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:40:55,280 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732919866] [2021-05-03 00:40:55,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:40:55,906 WARN L205 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 159 [2021-05-03 00:40:56,116 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_15772) (< v_main_~c~0_1522 5) (<= 5 v_main_~d~0_4257)) InVars {main_~c~0=v_main_~c~0_1522, main_~d~0=v_main_~d~0_4257, main_~e~0=v_main_~e~0_15772} OutVars{main_~c~0=v_main_~c~0_1522, main_~d~0=v_main_~d~0_4257, main_~e~0=v_main_~e~0_15772} AuxVars[] AssignedVars[] [2021-05-03 00:40:56,118 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:40:56,144 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:56,147 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:40:56,163 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:40:56,195 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_4259 5) (<= 5 v_main_~e~0_15775)) InVars {main_~d~0=v_main_~d~0_4259, main_~e~0=v_main_~e~0_15775} OutVars{main_~d~0=v_main_~d~0_4259, main_~e~0=v_main_~e~0_15775} AuxVars[] AssignedVars[] [2021-05-03 00:40:56,197 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:40:56,214 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:56,217 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:40:56,231 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:40:56,255 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_15777 5) InVars {main_~e~0=v_main_~e~0_15777} OutVars{main_~e~0=v_main_~e~0_15777} AuxVars[] AssignedVars[] [2021-05-03 00:40:56,256 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:40:56,257 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:56,262 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:40:56,276 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:40:56,294 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_15772) (< v_main_~c~0_1522 5) (<= 5 v_main_~d~0_4257)) InVars {main_~c~0=v_main_~c~0_1522, main_~d~0=v_main_~d~0_4257, main_~e~0=v_main_~e~0_15772} OutVars{main_~c~0=v_main_~c~0_1522, main_~d~0=v_main_~d~0_4257, main_~e~0=v_main_~e~0_15772} AuxVars[] AssignedVars[] [2021-05-03 00:40:56,296 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:40:56,298 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:56,304 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:40:56,356 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:40:56,394 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_4259 5) (<= 5 v_main_~e~0_15775)) InVars {main_~d~0=v_main_~d~0_4259, main_~e~0=v_main_~e~0_15775} OutVars{main_~d~0=v_main_~d~0_4259, main_~e~0=v_main_~e~0_15775} AuxVars[] AssignedVars[] [2021-05-03 00:40:56,396 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:40:56,419 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:56,422 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:40:56,437 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:40:56,467 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_15777 5) InVars {main_~e~0=v_main_~e~0_15777} OutVars{main_~e~0=v_main_~e~0_15777} AuxVars[] AssignedVars[] [2021-05-03 00:40:56,468 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:40:56,469 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:56,475 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:40:56,495 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:40:56,513 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:40:56,514 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:56,539 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:40:56,558 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_15772) (< v_main_~c~0_1522 5) (<= 5 v_main_~d~0_4257)) InVars {main_~c~0=v_main_~c~0_1522, main_~d~0=v_main_~d~0_4257, main_~e~0=v_main_~e~0_15772} OutVars{main_~c~0=v_main_~c~0_1522, main_~d~0=v_main_~d~0_4257, main_~e~0=v_main_~e~0_15772} AuxVars[] AssignedVars[] [2021-05-03 00:40:56,560 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:40:56,561 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:56,565 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:40:56,617 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:40:56,655 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_4259 5) (<= 5 v_main_~e~0_15775)) InVars {main_~d~0=v_main_~d~0_4259, main_~e~0=v_main_~e~0_15775} OutVars{main_~d~0=v_main_~d~0_4259, main_~e~0=v_main_~e~0_15775} AuxVars[] AssignedVars[] [2021-05-03 00:40:56,657 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:40:56,680 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:56,683 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:40:56,697 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:40:56,724 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_15777 5) InVars {main_~e~0=v_main_~e~0_15777} OutVars{main_~e~0=v_main_~e~0_15777} AuxVars[] AssignedVars[] [2021-05-03 00:40:56,726 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:40:56,727 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:56,758 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:40:56,778 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:40:56,811 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:40:56,812 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:40:56,846 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:40:56,867 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:40:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:40:56,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:40:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:40:56,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:41:03,311 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:41:03,311 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1732919866] [2021-05-03 00:41:03,311 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1732919866] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:41:03,311 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:41:03,311 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [89] imperfect sequences [] total 89 [2021-05-03 00:41:03,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296577899] [2021-05-03 00:41:03,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 89 states [2021-05-03 00:41:03,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:41:03,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2021-05-03 00:41:03,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=395, Invalid=7437, Unknown=0, NotChecked=0, Total=7832 [2021-05-03 00:41:03,313 INFO L87 Difference]: Start difference. First operand 192 states and 196 transitions. Second operand has 89 states, 89 states have (on average 2.1123595505617976) internal successors, (188), 88 states have internal predecessors, (188), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:41:16,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:41:16,575 INFO L93 Difference]: Finished difference Result 224 states and 240 transitions. [2021-05-03 00:41:16,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-05-03 00:41:16,576 INFO L78 Accepts]: Start accepts. Automaton has has 89 states, 89 states have (on average 2.1123595505617976) internal successors, (188), 88 states have internal predecessors, (188), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 191 [2021-05-03 00:41:16,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:41:16,577 INFO L225 Difference]: With dead ends: 224 [2021-05-03 00:41:16,577 INFO L226 Difference]: Without dead ends: 211 [2021-05-03 00:41:16,579 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 72 SyntacticMatches, 33 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8167 ImplicationChecksByTransitivity, 13215.9ms TimeCoverageRelationStatistics Valid=1179, Invalid=29271, Unknown=0, NotChecked=0, Total=30450 [2021-05-03 00:41:16,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-05-03 00:41:16,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 194. [2021-05-03 00:41:16,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 190 states have (on average 1.0263157894736843) internal successors, (195), 190 states have internal predecessors, (195), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:41:16,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 198 transitions. [2021-05-03 00:41:16,755 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 198 transitions. Word has length 191 [2021-05-03 00:41:16,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:41:16,755 INFO L480 AbstractCegarLoop]: Abstraction has 194 states and 198 transitions. [2021-05-03 00:41:16,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 89 states, 89 states have (on average 2.1123595505617976) internal successors, (188), 88 states have internal predecessors, (188), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:41:16,755 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 198 transitions. [2021-05-03 00:41:16,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-05-03 00:41:16,756 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:41:16,756 INFO L523 BasicCegarLoop]: trace histogram [68, 68, 12, 12, 12, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:41:16,756 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-05-03 00:41:16,756 INFO L428 AbstractCegarLoop]: === Iteration 86 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:41:16,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:41:16,757 INFO L82 PathProgramCache]: Analyzing trace with hash -2031730069, now seen corresponding path program 80 times [2021-05-03 00:41:16,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:41:16,757 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [940902860] [2021-05-03 00:41:16,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:41:17,483 WARN L205 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 155 [2021-05-03 00:41:17,726 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_16135) (< v_main_~c~0_1550 5) (<= 5 v_main_~d~0_4344)) InVars {main_~c~0=v_main_~c~0_1550, main_~d~0=v_main_~d~0_4344, main_~e~0=v_main_~e~0_16135} OutVars{main_~c~0=v_main_~c~0_1550, main_~d~0=v_main_~d~0_4344, main_~e~0=v_main_~e~0_16135} AuxVars[] AssignedVars[] [2021-05-03 00:41:17,728 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:41:17,729 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:41:17,732 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:41:17,774 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:41:17,809 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_4346 5) (<= 5 v_main_~e~0_16138)) InVars {main_~d~0=v_main_~d~0_4346, main_~e~0=v_main_~e~0_16138} OutVars{main_~d~0=v_main_~d~0_4346, main_~e~0=v_main_~e~0_16138} AuxVars[] AssignedVars[] [2021-05-03 00:41:17,810 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:41:17,811 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:41:17,814 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:41:17,841 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:41:17,866 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_16140 5) InVars {main_~e~0=v_main_~e~0_16140} OutVars{main_~e~0=v_main_~e~0_16140} AuxVars[] AssignedVars[] [2021-05-03 00:41:17,867 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:41:17,876 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:41:17,881 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:41:17,889 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:41:17,907 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_16135) (< v_main_~c~0_1550 5) (<= 5 v_main_~d~0_4344)) InVars {main_~c~0=v_main_~c~0_1550, main_~d~0=v_main_~d~0_4344, main_~e~0=v_main_~e~0_16135} OutVars{main_~c~0=v_main_~c~0_1550, main_~d~0=v_main_~d~0_4344, main_~e~0=v_main_~e~0_16135} AuxVars[] AssignedVars[] [2021-05-03 00:41:17,909 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:41:17,938 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:41:17,941 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:41:17,959 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:41:17,994 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_4346 5) (<= 5 v_main_~e~0_16138)) InVars {main_~d~0=v_main_~d~0_4346, main_~e~0=v_main_~e~0_16138} OutVars{main_~d~0=v_main_~d~0_4346, main_~e~0=v_main_~e~0_16138} AuxVars[] AssignedVars[] [2021-05-03 00:41:17,995 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:41:17,996 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:41:17,999 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:41:18,026 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:41:18,051 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_16140 5) InVars {main_~e~0=v_main_~e~0_16140} OutVars{main_~e~0=v_main_~e~0_16140} AuxVars[] AssignedVars[] [2021-05-03 00:41:18,053 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:41:18,053 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:41:18,059 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:41:18,074 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:41:18,091 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:41:18,091 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:41:18,113 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:41:18,131 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_16135) (< v_main_~c~0_1550 5) (<= 5 v_main_~d~0_4344)) InVars {main_~c~0=v_main_~c~0_1550, main_~d~0=v_main_~d~0_4344, main_~e~0=v_main_~e~0_16135} OutVars{main_~c~0=v_main_~c~0_1550, main_~d~0=v_main_~d~0_4344, main_~e~0=v_main_~e~0_16135} AuxVars[] AssignedVars[] [2021-05-03 00:41:18,133 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:41:18,134 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:41:18,137 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:41:18,181 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:41:18,216 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_4346 5) (<= 5 v_main_~e~0_16138)) InVars {main_~d~0=v_main_~d~0_4346, main_~e~0=v_main_~e~0_16138} OutVars{main_~d~0=v_main_~d~0_4346, main_~e~0=v_main_~e~0_16138} AuxVars[] AssignedVars[] [2021-05-03 00:41:18,217 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:41:18,217 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:41:18,220 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:41:18,247 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:41:18,272 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_16140 5) InVars {main_~e~0=v_main_~e~0_16140} OutVars{main_~e~0=v_main_~e~0_16140} AuxVars[] AssignedVars[] [2021-05-03 00:41:18,273 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:41:18,274 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:41:18,280 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:41:18,296 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:41:18,327 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:41:18,328 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:41:18,361 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:41:18,381 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:41:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:41:18,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:41:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:41:18,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:41:25,937 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:41:25,938 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [940902860] [2021-05-03 00:41:25,938 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [940902860] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:41:25,938 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:41:25,938 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [90] imperfect sequences [] total 90 [2021-05-03 00:41:25,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618897975] [2021-05-03 00:41:25,938 INFO L460 AbstractCegarLoop]: Interpolant automaton has 90 states [2021-05-03 00:41:25,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:41:25,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2021-05-03 00:41:25,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=399, Invalid=7611, Unknown=0, NotChecked=0, Total=8010 [2021-05-03 00:41:25,939 INFO L87 Difference]: Start difference. First operand 194 states and 198 transitions. Second operand has 90 states, 90 states have (on average 2.111111111111111) internal successors, (190), 89 states have internal predecessors, (190), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:41:44,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:41:44,646 INFO L93 Difference]: Finished difference Result 226 states and 242 transitions. [2021-05-03 00:41:44,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-05-03 00:41:44,648 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 90 states have (on average 2.111111111111111) internal successors, (190), 89 states have internal predecessors, (190), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 193 [2021-05-03 00:41:44,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:41:44,651 INFO L225 Difference]: With dead ends: 226 [2021-05-03 00:41:44,651 INFO L226 Difference]: Without dead ends: 213 [2021-05-03 00:41:44,652 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 82 SyntacticMatches, 24 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8270 ImplicationChecksByTransitivity, 16286.4ms TimeCoverageRelationStatistics Valid=1191, Invalid=29961, Unknown=0, NotChecked=0, Total=31152 [2021-05-03 00:41:44,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-05-03 00:41:44,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 196. [2021-05-03 00:41:44,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 192 states have (on average 1.0260416666666667) internal successors, (197), 192 states have internal predecessors, (197), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:41:44,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 200 transitions. [2021-05-03 00:41:44,868 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 200 transitions. Word has length 193 [2021-05-03 00:41:44,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:41:44,868 INFO L480 AbstractCegarLoop]: Abstraction has 196 states and 200 transitions. [2021-05-03 00:41:44,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 90 states, 90 states have (on average 2.111111111111111) internal successors, (190), 89 states have internal predecessors, (190), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:41:44,869 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 200 transitions. [2021-05-03 00:41:44,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-05-03 00:41:44,869 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:41:44,869 INFO L523 BasicCegarLoop]: trace histogram [69, 69, 12, 12, 12, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:41:44,869 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-05-03 00:41:44,869 INFO L428 AbstractCegarLoop]: === Iteration 87 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:41:44,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:41:44,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1643575799, now seen corresponding path program 81 times [2021-05-03 00:41:44,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:41:44,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [45296054] [2021-05-03 00:41:44,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:41:45,576 WARN L205 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 155 [2021-05-03 00:41:45,867 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1578 5) (<= 5 v_main_~d~0_4431) (<= 5 v_main_~e~0_16503)) InVars {main_~c~0=v_main_~c~0_1578, main_~d~0=v_main_~d~0_4431, main_~e~0=v_main_~e~0_16503} OutVars{main_~c~0=v_main_~c~0_1578, main_~d~0=v_main_~d~0_4431, main_~e~0=v_main_~e~0_16503} AuxVars[] AssignedVars[] [2021-05-03 00:41:45,869 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:41:45,904 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:41:45,908 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:41:45,929 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:41:45,981 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_4433 5) (<= 5 v_main_~e~0_16506)) InVars {main_~d~0=v_main_~d~0_4433, main_~e~0=v_main_~e~0_16506} OutVars{main_~d~0=v_main_~d~0_4433, main_~e~0=v_main_~e~0_16506} AuxVars[] AssignedVars[] [2021-05-03 00:41:45,983 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:41:46,010 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:41:46,013 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:41:46,027 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:41:46,059 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_16508 5) InVars {main_~e~0=v_main_~e~0_16508} OutVars{main_~e~0=v_main_~e~0_16508} AuxVars[] AssignedVars[] [2021-05-03 00:41:46,061 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:41:46,072 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:41:46,079 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:41:46,089 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:41:46,113 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1578 5) (<= 5 v_main_~d~0_4431) (<= 5 v_main_~e~0_16503)) InVars {main_~c~0=v_main_~c~0_1578, main_~d~0=v_main_~d~0_4431, main_~e~0=v_main_~e~0_16503} OutVars{main_~c~0=v_main_~c~0_1578, main_~d~0=v_main_~d~0_4431, main_~e~0=v_main_~e~0_16503} AuxVars[] AssignedVars[] [2021-05-03 00:41:46,115 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:41:46,152 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:41:46,156 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:41:46,176 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:41:46,216 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_4433 5) (<= 5 v_main_~e~0_16506)) InVars {main_~d~0=v_main_~d~0_4433, main_~e~0=v_main_~e~0_16506} OutVars{main_~d~0=v_main_~d~0_4433, main_~e~0=v_main_~e~0_16506} AuxVars[] AssignedVars[] [2021-05-03 00:41:46,218 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:41:46,219 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:41:46,222 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:41:46,258 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:41:46,287 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_16508 5) InVars {main_~e~0=v_main_~e~0_16508} OutVars{main_~e~0=v_main_~e~0_16508} AuxVars[] AssignedVars[] [2021-05-03 00:41:46,289 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:41:46,290 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:41:46,297 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:41:46,315 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:41:46,334 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:41:46,336 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:41:46,361 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:41:46,380 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1578 5) (<= 5 v_main_~d~0_4431) (<= 5 v_main_~e~0_16503)) InVars {main_~c~0=v_main_~c~0_1578, main_~d~0=v_main_~d~0_4431, main_~e~0=v_main_~e~0_16503} OutVars{main_~c~0=v_main_~c~0_1578, main_~d~0=v_main_~d~0_4431, main_~e~0=v_main_~e~0_16503} AuxVars[] AssignedVars[] [2021-05-03 00:41:46,382 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:41:46,418 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:41:46,422 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:41:46,446 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:41:46,489 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_4433 5) (<= 5 v_main_~e~0_16506)) InVars {main_~d~0=v_main_~d~0_4433, main_~e~0=v_main_~e~0_16506} OutVars{main_~d~0=v_main_~d~0_4433, main_~e~0=v_main_~e~0_16506} AuxVars[] AssignedVars[] [2021-05-03 00:41:46,491 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:41:46,512 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:41:46,516 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:41:46,531 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:41:46,561 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_16508 5) InVars {main_~e~0=v_main_~e~0_16508} OutVars{main_~e~0=v_main_~e~0_16508} AuxVars[] AssignedVars[] [2021-05-03 00:41:46,562 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:41:46,573 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:41:46,579 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:41:46,589 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:41:46,640 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:41:46,642 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:41:46,679 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:41:46,700 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:41:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:41:46,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:41:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:41:46,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:41:52,842 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:41:52,843 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [45296054] [2021-05-03 00:41:52,843 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [45296054] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:41:52,843 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:41:52,843 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [91] imperfect sequences [] total 91 [2021-05-03 00:41:52,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105149683] [2021-05-03 00:41:52,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 91 states [2021-05-03 00:41:52,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:41:52,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2021-05-03 00:41:52,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=403, Invalid=7787, Unknown=0, NotChecked=0, Total=8190 [2021-05-03 00:41:52,844 INFO L87 Difference]: Start difference. First operand 196 states and 200 transitions. Second operand has 91 states, 91 states have (on average 2.10989010989011) internal successors, (192), 90 states have internal predecessors, (192), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:42:07,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:42:07,330 INFO L93 Difference]: Finished difference Result 228 states and 244 transitions. [2021-05-03 00:42:07,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-05-03 00:42:07,332 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 91 states have (on average 2.10989010989011) internal successors, (192), 90 states have internal predecessors, (192), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 195 [2021-05-03 00:42:07,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:42:07,333 INFO L225 Difference]: With dead ends: 228 [2021-05-03 00:42:07,333 INFO L226 Difference]: Without dead ends: 215 [2021-05-03 00:42:07,335 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 82 SyntacticMatches, 25 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8354 ImplicationChecksByTransitivity, 13376.0ms TimeCoverageRelationStatistics Valid=1203, Invalid=30659, Unknown=0, NotChecked=0, Total=31862 [2021-05-03 00:42:07,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-05-03 00:42:07,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 198. [2021-05-03 00:42:07,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 194 states have (on average 1.0257731958762886) internal successors, (199), 194 states have internal predecessors, (199), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:42:07,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 202 transitions. [2021-05-03 00:42:07,551 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 202 transitions. Word has length 195 [2021-05-03 00:42:07,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:42:07,551 INFO L480 AbstractCegarLoop]: Abstraction has 198 states and 202 transitions. [2021-05-03 00:42:07,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 91 states, 91 states have (on average 2.10989010989011) internal successors, (192), 90 states have internal predecessors, (192), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:42:07,551 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 202 transitions. [2021-05-03 00:42:07,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-05-03 00:42:07,552 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:42:07,552 INFO L523 BasicCegarLoop]: trace histogram [70, 70, 12, 12, 12, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:42:07,552 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-05-03 00:42:07,552 INFO L428 AbstractCegarLoop]: === Iteration 88 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:42:07,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:42:07,553 INFO L82 PathProgramCache]: Analyzing trace with hash 2005490215, now seen corresponding path program 82 times [2021-05-03 00:42:07,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:42:07,553 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [857436818] [2021-05-03 00:42:07,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:42:08,527 WARN L205 SmtUtils]: Spent 972.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 157 [2021-05-03 00:42:08,962 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_4518) (<= 5 v_main_~e~0_16876) (< v_main_~c~0_1606 5)) InVars {main_~c~0=v_main_~c~0_1606, main_~d~0=v_main_~d~0_4518, main_~e~0=v_main_~e~0_16876} OutVars{main_~c~0=v_main_~c~0_1606, main_~d~0=v_main_~d~0_4518, main_~e~0=v_main_~e~0_16876} AuxVars[] AssignedVars[] [2021-05-03 00:42:08,964 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:42:08,966 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:08,972 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:42:09,044 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:42:09,103 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_16879) (< v_main_~d~0_4520 5)) InVars {main_~d~0=v_main_~d~0_4520, main_~e~0=v_main_~e~0_16879} OutVars{main_~d~0=v_main_~d~0_4520, main_~e~0=v_main_~e~0_16879} AuxVars[] AssignedVars[] [2021-05-03 00:42:09,105 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:42:09,137 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:09,142 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:42:09,164 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:42:09,210 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_16881 5) InVars {main_~e~0=v_main_~e~0_16881} OutVars{main_~e~0=v_main_~e~0_16881} AuxVars[] AssignedVars[] [2021-05-03 00:42:09,212 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:42:09,213 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:09,223 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:42:09,253 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:42:09,289 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_4518) (<= 5 v_main_~e~0_16876) (< v_main_~c~0_1606 5)) InVars {main_~c~0=v_main_~c~0_1606, main_~d~0=v_main_~d~0_4518, main_~e~0=v_main_~e~0_16876} OutVars{main_~c~0=v_main_~c~0_1606, main_~d~0=v_main_~d~0_4518, main_~e~0=v_main_~e~0_16876} AuxVars[] AssignedVars[] [2021-05-03 00:42:09,291 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:42:09,292 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:09,297 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:42:09,369 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:42:09,430 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_16879) (< v_main_~d~0_4520 5)) InVars {main_~d~0=v_main_~d~0_4520, main_~e~0=v_main_~e~0_16879} OutVars{main_~d~0=v_main_~d~0_4520, main_~e~0=v_main_~e~0_16879} AuxVars[] AssignedVars[] [2021-05-03 00:42:09,431 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:42:09,465 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:09,469 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:42:09,489 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:42:09,540 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_16881 5) InVars {main_~e~0=v_main_~e~0_16881} OutVars{main_~e~0=v_main_~e~0_16881} AuxVars[] AssignedVars[] [2021-05-03 00:42:09,542 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:42:09,543 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:09,553 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:42:09,586 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:42:09,616 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:42:09,618 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:09,653 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:42:09,685 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_4518) (<= 5 v_main_~e~0_16876) (< v_main_~c~0_1606 5)) InVars {main_~c~0=v_main_~c~0_1606, main_~d~0=v_main_~d~0_4518, main_~e~0=v_main_~e~0_16876} OutVars{main_~c~0=v_main_~c~0_1606, main_~d~0=v_main_~d~0_4518, main_~e~0=v_main_~e~0_16876} AuxVars[] AssignedVars[] [2021-05-03 00:42:09,687 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:42:09,741 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:09,746 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:42:09,782 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:42:09,852 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_16879) (< v_main_~d~0_4520 5)) InVars {main_~d~0=v_main_~d~0_4520, main_~e~0=v_main_~e~0_16879} OutVars{main_~d~0=v_main_~d~0_4520, main_~e~0=v_main_~e~0_16879} AuxVars[] AssignedVars[] [2021-05-03 00:42:09,854 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:42:09,856 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:09,861 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:42:09,929 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:42:09,974 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_16881 5) InVars {main_~e~0=v_main_~e~0_16881} OutVars{main_~e~0=v_main_~e~0_16881} AuxVars[] AssignedVars[] [2021-05-03 00:42:09,976 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:42:09,977 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:09,985 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:42:10,014 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:42:10,056 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:42:10,057 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:10,103 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:42:10,131 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:42:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:42:10,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:42:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:42:10,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:42:17,059 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:42:17,059 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [857436818] [2021-05-03 00:42:17,060 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [857436818] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:42:17,060 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:42:17,060 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [92] imperfect sequences [] total 92 [2021-05-03 00:42:17,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672888327] [2021-05-03 00:42:17,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 92 states [2021-05-03 00:42:17,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:42:17,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2021-05-03 00:42:17,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=407, Invalid=7965, Unknown=0, NotChecked=0, Total=8372 [2021-05-03 00:42:17,061 INFO L87 Difference]: Start difference. First operand 198 states and 202 transitions. Second operand has 92 states, 92 states have (on average 2.108695652173913) internal successors, (194), 91 states have internal predecessors, (194), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:42:29,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:42:29,288 INFO L93 Difference]: Finished difference Result 230 states and 246 transitions. [2021-05-03 00:42:29,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-05-03 00:42:29,289 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 92 states have (on average 2.108695652173913) internal successors, (194), 91 states have internal predecessors, (194), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2021-05-03 00:42:29,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:42:29,290 INFO L225 Difference]: With dead ends: 230 [2021-05-03 00:42:29,290 INFO L226 Difference]: Without dead ends: 217 [2021-05-03 00:42:29,292 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 80 SyntacticMatches, 28 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8580 ImplicationChecksByTransitivity, 13041.5ms TimeCoverageRelationStatistics Valid=1215, Invalid=31365, Unknown=0, NotChecked=0, Total=32580 [2021-05-03 00:42:29,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-05-03 00:42:29,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 200. [2021-05-03 00:42:29,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 196 states have (on average 1.0255102040816326) internal successors, (201), 196 states have internal predecessors, (201), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:42:29,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 204 transitions. [2021-05-03 00:42:29,504 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 204 transitions. Word has length 197 [2021-05-03 00:42:29,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:42:29,505 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 204 transitions. [2021-05-03 00:42:29,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 92 states, 92 states have (on average 2.108695652173913) internal successors, (194), 91 states have internal predecessors, (194), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:42:29,505 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 204 transitions. [2021-05-03 00:42:29,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-05-03 00:42:29,505 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:42:29,506 INFO L523 BasicCegarLoop]: trace histogram [71, 71, 12, 12, 12, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:42:29,506 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-05-03 00:42:29,506 INFO L428 AbstractCegarLoop]: === Iteration 89 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:42:29,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:42:29,506 INFO L82 PathProgramCache]: Analyzing trace with hash -230351163, now seen corresponding path program 83 times [2021-05-03 00:42:29,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:42:29,506 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267949019] [2021-05-03 00:42:29,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:42:30,501 WARN L205 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 155 [2021-05-03 00:42:30,934 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1634 5) (<= 5 v_main_~e~0_17254) (<= 5 v_main_~d~0_4605)) InVars {main_~c~0=v_main_~c~0_1634, main_~d~0=v_main_~d~0_4605, main_~e~0=v_main_~e~0_17254} OutVars{main_~c~0=v_main_~c~0_1634, main_~d~0=v_main_~d~0_4605, main_~e~0=v_main_~e~0_17254} AuxVars[] AssignedVars[] [2021-05-03 00:42:30,936 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:42:30,937 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:30,942 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:42:31,018 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:42:31,084 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_4607 5) (<= 5 v_main_~e~0_17257)) InVars {main_~d~0=v_main_~d~0_4607, main_~e~0=v_main_~e~0_17257} OutVars{main_~d~0=v_main_~d~0_4607, main_~e~0=v_main_~e~0_17257} AuxVars[] AssignedVars[] [2021-05-03 00:42:31,085 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:42:31,119 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:31,123 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:42:31,143 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:42:31,204 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_17259 5) InVars {main_~e~0=v_main_~e~0_17259} OutVars{main_~e~0=v_main_~e~0_17259} AuxVars[] AssignedVars[] [2021-05-03 00:42:31,205 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:42:31,219 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:31,228 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:42:31,243 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:42:31,275 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1634 5) (<= 5 v_main_~e~0_17254) (<= 5 v_main_~d~0_4605)) InVars {main_~c~0=v_main_~c~0_1634, main_~d~0=v_main_~d~0_4605, main_~e~0=v_main_~e~0_17254} OutVars{main_~c~0=v_main_~c~0_1634, main_~d~0=v_main_~d~0_4605, main_~e~0=v_main_~e~0_17254} AuxVars[] AssignedVars[] [2021-05-03 00:42:31,277 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:42:31,279 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:31,283 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:42:31,357 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:42:31,417 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_4607 5) (<= 5 v_main_~e~0_17257)) InVars {main_~d~0=v_main_~d~0_4607, main_~e~0=v_main_~e~0_17257} OutVars{main_~d~0=v_main_~d~0_4607, main_~e~0=v_main_~e~0_17257} AuxVars[] AssignedVars[] [2021-05-03 00:42:31,419 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:42:31,453 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:31,458 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:42:31,481 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:42:31,531 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_17259 5) InVars {main_~e~0=v_main_~e~0_17259} OutVars{main_~e~0=v_main_~e~0_17259} AuxVars[] AssignedVars[] [2021-05-03 00:42:31,533 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:42:31,534 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:31,544 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:42:31,575 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:42:31,605 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:42:31,607 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:31,644 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:42:31,675 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1634 5) (<= 5 v_main_~e~0_17254) (<= 5 v_main_~d~0_4605)) InVars {main_~c~0=v_main_~c~0_1634, main_~d~0=v_main_~d~0_4605, main_~e~0=v_main_~e~0_17254} OutVars{main_~c~0=v_main_~c~0_1634, main_~d~0=v_main_~d~0_4605, main_~e~0=v_main_~e~0_17254} AuxVars[] AssignedVars[] [2021-05-03 00:42:31,676 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:42:31,729 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:31,733 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:42:31,764 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:42:31,831 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_4607 5) (<= 5 v_main_~e~0_17257)) InVars {main_~d~0=v_main_~d~0_4607, main_~e~0=v_main_~e~0_17257} OutVars{main_~d~0=v_main_~d~0_4607, main_~e~0=v_main_~e~0_17257} AuxVars[] AssignedVars[] [2021-05-03 00:42:31,833 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:42:31,834 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:31,839 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:42:31,884 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:42:31,932 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_17259 5) InVars {main_~e~0=v_main_~e~0_17259} OutVars{main_~e~0=v_main_~e~0_17259} AuxVars[] AssignedVars[] [2021-05-03 00:42:31,934 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:42:31,948 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:31,958 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:42:31,972 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:42:32,018 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:42:32,019 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:32,069 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:42:32,099 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:42:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:42:32,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:42:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:42:32,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:42:41,818 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:42:41,819 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267949019] [2021-05-03 00:42:41,819 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1267949019] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:42:41,819 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:42:41,819 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [93] imperfect sequences [] total 93 [2021-05-03 00:42:41,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72714720] [2021-05-03 00:42:41,819 INFO L460 AbstractCegarLoop]: Interpolant automaton has 93 states [2021-05-03 00:42:41,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:42:41,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2021-05-03 00:42:41,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=411, Invalid=8145, Unknown=0, NotChecked=0, Total=8556 [2021-05-03 00:42:41,820 INFO L87 Difference]: Start difference. First operand 200 states and 204 transitions. Second operand has 93 states, 93 states have (on average 2.10752688172043) internal successors, (196), 92 states have internal predecessors, (196), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:42:56,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:42:56,895 INFO L93 Difference]: Finished difference Result 236 states and 254 transitions. [2021-05-03 00:42:56,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-05-03 00:42:56,897 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 93 states have (on average 2.10752688172043) internal successors, (196), 92 states have internal predecessors, (196), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 199 [2021-05-03 00:42:56,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:42:56,898 INFO L225 Difference]: With dead ends: 236 [2021-05-03 00:42:56,898 INFO L226 Difference]: Without dead ends: 223 [2021-05-03 00:42:56,899 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 75 SyntacticMatches, 34 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8902 ImplicationChecksByTransitivity, 17068.2ms TimeCoverageRelationStatistics Valid=1227, Invalid=32079, Unknown=0, NotChecked=0, Total=33306 [2021-05-03 00:42:56,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-05-03 00:42:57,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 206. [2021-05-03 00:42:57,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 202 states have (on average 1.0247524752475248) internal successors, (207), 202 states have internal predecessors, (207), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:42:57,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 210 transitions. [2021-05-03 00:42:57,111 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 210 transitions. Word has length 199 [2021-05-03 00:42:57,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:42:57,111 INFO L480 AbstractCegarLoop]: Abstraction has 206 states and 210 transitions. [2021-05-03 00:42:57,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 93 states, 93 states have (on average 2.10752688172043) internal successors, (196), 92 states have internal predecessors, (196), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:42:57,111 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 210 transitions. [2021-05-03 00:42:57,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-05-03 00:42:57,112 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:42:57,112 INFO L523 BasicCegarLoop]: trace histogram [72, 72, 12, 12, 12, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:42:57,112 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-05-03 00:42:57,112 INFO L428 AbstractCegarLoop]: === Iteration 90 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:42:57,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:42:57,112 INFO L82 PathProgramCache]: Analyzing trace with hash -1390267421, now seen corresponding path program 84 times [2021-05-03 00:42:57,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:42:57,113 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1595284737] [2021-05-03 00:42:57,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:42:58,012 WARN L205 SmtUtils]: Spent 897.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 157 [2021-05-03 00:42:58,443 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1660 5) (<= 5 v_main_~d~0_4683) (<= 5 v_main_~e~0_17588)) InVars {main_~c~0=v_main_~c~0_1660, main_~d~0=v_main_~d~0_4683, main_~e~0=v_main_~e~0_17588} OutVars{main_~c~0=v_main_~c~0_1660, main_~d~0=v_main_~d~0_4683, main_~e~0=v_main_~e~0_17588} AuxVars[] AssignedVars[] [2021-05-03 00:42:58,445 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:42:58,447 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:58,451 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:42:58,519 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:42:58,582 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_4685 5) (<= 5 v_main_~e~0_17591)) InVars {main_~d~0=v_main_~d~0_4685, main_~e~0=v_main_~e~0_17591} OutVars{main_~d~0=v_main_~d~0_4685, main_~e~0=v_main_~e~0_17591} AuxVars[] AssignedVars[] [2021-05-03 00:42:58,583 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:42:58,584 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:58,589 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:42:58,635 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:42:58,679 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_17593 5) InVars {main_~e~0=v_main_~e~0_17593} OutVars{main_~e~0=v_main_~e~0_17593} AuxVars[] AssignedVars[] [2021-05-03 00:42:58,680 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:42:58,695 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:58,704 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:42:58,718 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:42:58,748 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1660 5) (<= 5 v_main_~d~0_4683) (<= 5 v_main_~e~0_17588)) InVars {main_~c~0=v_main_~c~0_1660, main_~d~0=v_main_~d~0_4683, main_~e~0=v_main_~e~0_17588} OutVars{main_~c~0=v_main_~c~0_1660, main_~d~0=v_main_~d~0_4683, main_~e~0=v_main_~e~0_17588} AuxVars[] AssignedVars[] [2021-05-03 00:42:58,751 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:42:58,798 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:58,803 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:42:58,832 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:42:58,893 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_4685 5) (<= 5 v_main_~e~0_17591)) InVars {main_~d~0=v_main_~d~0_4685, main_~e~0=v_main_~e~0_17591} OutVars{main_~d~0=v_main_~d~0_4685, main_~e~0=v_main_~e~0_17591} AuxVars[] AssignedVars[] [2021-05-03 00:42:58,894 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:42:58,927 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:58,932 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:42:58,953 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:42:59,000 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_17593 5) InVars {main_~e~0=v_main_~e~0_17593} OutVars{main_~e~0=v_main_~e~0_17593} AuxVars[] AssignedVars[] [2021-05-03 00:42:59,001 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:42:59,003 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:59,011 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:42:59,039 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:42:59,066 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:42:59,068 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:59,104 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:42:59,135 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1660 5) (<= 5 v_main_~d~0_4683) (<= 5 v_main_~e~0_17588)) InVars {main_~c~0=v_main_~c~0_1660, main_~d~0=v_main_~d~0_4683, main_~e~0=v_main_~e~0_17588} OutVars{main_~c~0=v_main_~c~0_1660, main_~d~0=v_main_~d~0_4683, main_~e~0=v_main_~e~0_17588} AuxVars[] AssignedVars[] [2021-05-03 00:42:59,137 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:42:59,139 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:59,144 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:42:59,220 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:42:59,278 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_4685 5) (<= 5 v_main_~e~0_17591)) InVars {main_~d~0=v_main_~d~0_4685, main_~e~0=v_main_~e~0_17591} OutVars{main_~d~0=v_main_~d~0_4685, main_~e~0=v_main_~e~0_17591} AuxVars[] AssignedVars[] [2021-05-03 00:42:59,280 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:42:59,310 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:59,315 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:42:59,335 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:42:59,377 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_17593 5) InVars {main_~e~0=v_main_~e~0_17593} OutVars{main_~e~0=v_main_~e~0_17593} AuxVars[] AssignedVars[] [2021-05-03 00:42:59,378 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:42:59,379 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:59,388 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:42:59,423 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:42:59,472 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:42:59,473 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:42:59,504 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:42:59,523 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:42:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:42:59,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:42:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:42:59,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:43:09,197 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:43:09,197 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1595284737] [2021-05-03 00:43:09,197 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1595284737] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:43:09,197 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:43:09,197 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [94] imperfect sequences [] total 94 [2021-05-03 00:43:09,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808555884] [2021-05-03 00:43:09,198 INFO L460 AbstractCegarLoop]: Interpolant automaton has 94 states [2021-05-03 00:43:09,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:43:09,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2021-05-03 00:43:09,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=8327, Unknown=0, NotChecked=0, Total=8742 [2021-05-03 00:43:09,199 INFO L87 Difference]: Start difference. First operand 206 states and 210 transitions. Second operand has 94 states, 94 states have (on average 2.106382978723404) internal successors, (198), 93 states have internal predecessors, (198), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:43:30,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:43:30,935 INFO L93 Difference]: Finished difference Result 237 states and 253 transitions. [2021-05-03 00:43:30,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2021-05-03 00:43:30,937 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 94 states have (on average 2.106382978723404) internal successors, (198), 93 states have internal predecessors, (198), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 201 [2021-05-03 00:43:30,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:43:30,938 INFO L225 Difference]: With dead ends: 237 [2021-05-03 00:43:30,938 INFO L226 Difference]: Without dead ends: 224 [2021-05-03 00:43:30,939 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 78 SyntacticMatches, 32 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9102 ImplicationChecksByTransitivity, 20296.8ms TimeCoverageRelationStatistics Valid=1239, Invalid=32801, Unknown=0, NotChecked=0, Total=34040 [2021-05-03 00:43:30,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-05-03 00:43:31,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 208. [2021-05-03 00:43:31,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 204 states have (on average 1.0245098039215685) internal successors, (209), 204 states have internal predecessors, (209), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:43:31,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 212 transitions. [2021-05-03 00:43:31,152 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 212 transitions. Word has length 201 [2021-05-03 00:43:31,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:43:31,152 INFO L480 AbstractCegarLoop]: Abstraction has 208 states and 212 transitions. [2021-05-03 00:43:31,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 94 states, 94 states have (on average 2.106382978723404) internal successors, (198), 93 states have internal predecessors, (198), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:43:31,153 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 212 transitions. [2021-05-03 00:43:31,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-05-03 00:43:31,153 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:43:31,153 INFO L523 BasicCegarLoop]: trace histogram [72, 72, 12, 12, 12, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:43:31,153 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-05-03 00:43:31,154 INFO L428 AbstractCegarLoop]: === Iteration 91 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:43:31,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:43:31,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1003201358, now seen corresponding path program 85 times [2021-05-03 00:43:31,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:43:31,154 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87642466] [2021-05-03 00:43:31,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:43:31,956 WARN L205 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 154 [2021-05-03 00:43:32,280 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1689 5) (<= 5 v_main_~d~0_4763) (<= 5 v_main_~e~0_17925)) InVars {main_~c~0=v_main_~c~0_1689, main_~d~0=v_main_~d~0_4763, main_~e~0=v_main_~e~0_17925} OutVars{main_~c~0=v_main_~c~0_1689, main_~d~0=v_main_~d~0_4763, main_~e~0=v_main_~e~0_17925} AuxVars[] AssignedVars[] [2021-05-03 00:43:32,282 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:43:32,283 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:43:32,287 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:43:32,344 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:43:32,396 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_17928) (< v_main_~d~0_4765 5)) InVars {main_~d~0=v_main_~d~0_4765, main_~e~0=v_main_~e~0_17928} OutVars{main_~d~0=v_main_~d~0_4765, main_~e~0=v_main_~e~0_17928} AuxVars[] AssignedVars[] [2021-05-03 00:43:32,397 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:43:32,425 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:43:32,429 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:43:32,446 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:43:32,482 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_17930 5) InVars {main_~e~0=v_main_~e~0_17930} OutVars{main_~e~0=v_main_~e~0_17930} AuxVars[] AssignedVars[] [2021-05-03 00:43:32,484 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:43:32,485 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:43:32,494 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:43:32,520 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:43:32,549 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1689 5) (<= 5 v_main_~d~0_4763) (<= 5 v_main_~e~0_17925)) InVars {main_~c~0=v_main_~c~0_1689, main_~d~0=v_main_~d~0_4763, main_~e~0=v_main_~e~0_17925} OutVars{main_~c~0=v_main_~c~0_1689, main_~d~0=v_main_~d~0_4763, main_~e~0=v_main_~e~0_17925} AuxVars[] AssignedVars[] [2021-05-03 00:43:32,551 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:43:32,597 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:43:32,602 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:43:32,628 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:43:32,679 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_17928) (< v_main_~d~0_4765 5)) InVars {main_~d~0=v_main_~d~0_4765, main_~e~0=v_main_~e~0_17928} OutVars{main_~d~0=v_main_~d~0_4765, main_~e~0=v_main_~e~0_17928} AuxVars[] AssignedVars[] [2021-05-03 00:43:32,681 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:43:32,682 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:43:32,686 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:43:32,725 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:43:32,762 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_17930 5) InVars {main_~e~0=v_main_~e~0_17930} OutVars{main_~e~0=v_main_~e~0_17930} AuxVars[] AssignedVars[] [2021-05-03 00:43:32,764 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:43:32,765 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:43:32,771 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:43:32,789 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:43:32,807 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:43:32,808 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:43:32,829 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:43:32,846 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1689 5) (<= 5 v_main_~d~0_4763) (<= 5 v_main_~e~0_17925)) InVars {main_~c~0=v_main_~c~0_1689, main_~d~0=v_main_~d~0_4763, main_~e~0=v_main_~e~0_17925} OutVars{main_~c~0=v_main_~c~0_1689, main_~d~0=v_main_~d~0_4763, main_~e~0=v_main_~e~0_17925} AuxVars[] AssignedVars[] [2021-05-03 00:43:32,847 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:43:32,875 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:43:32,878 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:43:32,895 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:43:32,928 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_17928) (< v_main_~d~0_4765 5)) InVars {main_~d~0=v_main_~d~0_4765, main_~e~0=v_main_~e~0_17928} OutVars{main_~d~0=v_main_~d~0_4765, main_~e~0=v_main_~e~0_17928} AuxVars[] AssignedVars[] [2021-05-03 00:43:32,929 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:43:32,947 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:43:32,949 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:43:32,960 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:43:32,988 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_17930 5) InVars {main_~e~0=v_main_~e~0_17930} OutVars{main_~e~0=v_main_~e~0_17930} AuxVars[] AssignedVars[] [2021-05-03 00:43:32,990 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:43:32,991 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:43:32,999 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:43:33,022 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:43:33,059 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:43:33,060 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:43:33,092 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:43:33,110 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:43:33,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:43:33,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:43:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:43:33,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:43:40,265 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:43:40,266 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87642466] [2021-05-03 00:43:40,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [87642466] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:43:40,266 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:43:40,266 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [95] imperfect sequences [] total 95 [2021-05-03 00:43:40,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200367887] [2021-05-03 00:43:40,266 INFO L460 AbstractCegarLoop]: Interpolant automaton has 95 states [2021-05-03 00:43:40,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:43:40,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2021-05-03 00:43:40,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=419, Invalid=8511, Unknown=0, NotChecked=0, Total=8930 [2021-05-03 00:43:40,267 INFO L87 Difference]: Start difference. First operand 208 states and 212 transitions. Second operand has 95 states, 95 states have (on average 2.1157894736842104) internal successors, (201), 94 states have internal predecessors, (201), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:43:59,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:43:59,395 INFO L93 Difference]: Finished difference Result 238 states and 254 transitions. [2021-05-03 00:43:59,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-05-03 00:43:59,396 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 2.1157894736842104) internal successors, (201), 94 states have internal predecessors, (201), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 204 [2021-05-03 00:43:59,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:43:59,397 INFO L225 Difference]: With dead ends: 238 [2021-05-03 00:43:59,397 INFO L226 Difference]: Without dead ends: 225 [2021-05-03 00:43:59,398 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 86 SyntacticMatches, 26 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9097 ImplicationChecksByTransitivity, 16662.3ms TimeCoverageRelationStatistics Valid=1251, Invalid=33531, Unknown=0, NotChecked=0, Total=34782 [2021-05-03 00:43:59,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-05-03 00:43:59,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 209. [2021-05-03 00:43:59,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 205 states have (on average 1.024390243902439) internal successors, (210), 205 states have internal predecessors, (210), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:43:59,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 213 transitions. [2021-05-03 00:43:59,629 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 213 transitions. Word has length 204 [2021-05-03 00:43:59,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:43:59,629 INFO L480 AbstractCegarLoop]: Abstraction has 209 states and 213 transitions. [2021-05-03 00:43:59,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 95 states, 95 states have (on average 2.1157894736842104) internal successors, (201), 94 states have internal predecessors, (201), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:43:59,630 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 213 transitions. [2021-05-03 00:43:59,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-05-03 00:43:59,630 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:43:59,630 INFO L523 BasicCegarLoop]: trace histogram [72, 72, 13, 13, 13, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:43:59,630 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-05-03 00:43:59,631 INFO L428 AbstractCegarLoop]: === Iteration 92 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:43:59,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:43:59,631 INFO L82 PathProgramCache]: Analyzing trace with hash 102963807, now seen corresponding path program 86 times [2021-05-03 00:43:59,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:43:59,631 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1282146626] [2021-05-03 00:43:59,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:44:00,687 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 205 DAG size of output: 156 [2021-05-03 00:44:01,162 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2021-05-03 00:44:01,165 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_4849) (< v_main_~c~0_1720 5) (<= 5 v_main_~e~0_18264)) InVars {main_~c~0=v_main_~c~0_1720, main_~d~0=v_main_~d~0_4849, main_~e~0=v_main_~e~0_18264} OutVars{main_~c~0=v_main_~c~0_1720, main_~d~0=v_main_~d~0_4849, main_~e~0=v_main_~e~0_18264} AuxVars[] AssignedVars[] [2021-05-03 00:44:01,167 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:44:01,168 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:44:01,172 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:44:01,225 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:44:01,273 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_4851 5) (<= 5 v_main_~e~0_18267)) InVars {main_~d~0=v_main_~d~0_4851, main_~e~0=v_main_~e~0_18267} OutVars{main_~d~0=v_main_~d~0_4851, main_~e~0=v_main_~e~0_18267} AuxVars[] AssignedVars[] [2021-05-03 00:44:01,274 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:44:01,301 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:44:01,304 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:44:01,321 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:44:01,371 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_18269 5) InVars {main_~e~0=v_main_~e~0_18269} OutVars{main_~e~0=v_main_~e~0_18269} AuxVars[] AssignedVars[] [2021-05-03 00:44:01,372 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:44:01,384 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:44:01,391 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:44:01,404 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:44:01,429 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:44:01,431 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:44:01,459 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:44:01,481 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~d~0_4849) (< v_main_~c~0_1720 5) (<= 5 v_main_~e~0_18264)) InVars {main_~c~0=v_main_~c~0_1720, main_~d~0=v_main_~d~0_4849, main_~e~0=v_main_~e~0_18264} OutVars{main_~c~0=v_main_~c~0_1720, main_~d~0=v_main_~d~0_4849, main_~e~0=v_main_~e~0_18264} AuxVars[] AssignedVars[] [2021-05-03 00:44:01,483 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:44:01,485 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:44:01,489 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:44:01,540 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:44:01,586 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_4851 5) (<= 5 v_main_~e~0_18267)) InVars {main_~d~0=v_main_~d~0_4851, main_~e~0=v_main_~e~0_18267} OutVars{main_~d~0=v_main_~d~0_4851, main_~e~0=v_main_~e~0_18267} AuxVars[] AssignedVars[] [2021-05-03 00:44:01,587 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:44:01,612 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:44:01,615 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:44:01,631 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:44:01,666 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_18269 5) InVars {main_~e~0=v_main_~e~0_18269} OutVars{main_~e~0=v_main_~e~0_18269} AuxVars[] AssignedVars[] [2021-05-03 00:44:01,667 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:44:01,668 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:44:01,675 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:44:01,697 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:44:01,739 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:44:01,740 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:44:01,770 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:44:01,788 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:44:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:44:01,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:44:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:44:01,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:44:10,176 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:44:10,177 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1282146626] [2021-05-03 00:44:10,177 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1282146626] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:44:10,177 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:44:10,177 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [96] imperfect sequences [] total 96 [2021-05-03 00:44:10,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433893548] [2021-05-03 00:44:10,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 96 states [2021-05-03 00:44:10,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:44:10,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-05-03 00:44:10,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=423, Invalid=8697, Unknown=0, NotChecked=0, Total=9120 [2021-05-03 00:44:10,178 INFO L87 Difference]: Start difference. First operand 209 states and 213 transitions. Second operand has 96 states, 96 states have (on average 2.125) internal successors, (204), 95 states have internal predecessors, (204), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:44:35,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:44:35,738 INFO L93 Difference]: Finished difference Result 240 states and 256 transitions. [2021-05-03 00:44:35,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-05-03 00:44:35,742 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 2.125) internal successors, (204), 95 states have internal predecessors, (204), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 207 [2021-05-03 00:44:35,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:44:35,743 INFO L225 Difference]: With dead ends: 240 [2021-05-03 00:44:35,743 INFO L226 Difference]: Without dead ends: 227 [2021-05-03 00:44:35,745 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 78 SyntacticMatches, 36 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9450 ImplicationChecksByTransitivity, 20651.6ms TimeCoverageRelationStatistics Valid=1263, Invalid=34269, Unknown=0, NotChecked=0, Total=35532 [2021-05-03 00:44:35,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-05-03 00:44:35,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 210. [2021-05-03 00:44:35,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 206 states have (on average 1.0242718446601942) internal successors, (211), 206 states have internal predecessors, (211), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:44:35,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 214 transitions. [2021-05-03 00:44:35,994 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 214 transitions. Word has length 207 [2021-05-03 00:44:35,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:44:35,995 INFO L480 AbstractCegarLoop]: Abstraction has 210 states and 214 transitions. [2021-05-03 00:44:35,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 96 states, 96 states have (on average 2.125) internal successors, (204), 95 states have internal predecessors, (204), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:44:35,995 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 214 transitions. [2021-05-03 00:44:35,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-05-03 00:44:35,996 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:44:35,996 INFO L523 BasicCegarLoop]: trace histogram [73, 73, 13, 13, 13, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:44:35,996 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-05-03 00:44:35,996 INFO L428 AbstractCegarLoop]: === Iteration 93 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:44:35,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:44:35,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1097838845, now seen corresponding path program 87 times [2021-05-03 00:44:35,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:44:35,996 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [954971696] [2021-05-03 00:44:35,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:44:37,038 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 205 DAG size of output: 154 [2021-05-03 00:44:37,571 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_18595 6) InVars {main_~e~0=v_main_~e~0_18595} OutVars{main_~e~0=v_main_~e~0_18595} AuxVars[] AssignedVars[] [2021-05-03 00:44:37,574 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:44:37,591 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:44:37,602 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:44:37,621 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:44:37,655 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 6 v_main_~e~0_18597) (<= 5 v_main_~d~0_4928) (< v_main_~c~0_1747 5)) InVars {main_~c~0=v_main_~c~0_1747, main_~d~0=v_main_~d~0_4928, main_~e~0=v_main_~e~0_18597} OutVars{main_~c~0=v_main_~c~0_1747, main_~d~0=v_main_~d~0_4928, main_~e~0=v_main_~e~0_18597} AuxVars[] AssignedVars[] [2021-05-03 00:44:37,657 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 92.9 percent of original size [2021-05-03 00:44:37,658 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:44:37,663 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:44:37,737 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 92.9 percent of original size 65 [2021-05-03 00:44:37,804 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 6 v_main_~e~0_18599) (< v_main_~d~0_4930 5)) InVars {main_~d~0=v_main_~d~0_4930, main_~e~0=v_main_~e~0_18599} OutVars{main_~d~0=v_main_~d~0_4930, main_~e~0=v_main_~e~0_18599} AuxVars[] AssignedVars[] [2021-05-03 00:44:37,806 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.6 percent of original size [2021-05-03 00:44:37,836 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:44:37,840 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:44:37,863 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.6 percent of original size 50 [2021-05-03 00:44:37,920 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1749 5) (<= 5 v_main_~e~0_18602) (<= 5 v_main_~d~0_4933)) InVars {main_~c~0=v_main_~c~0_1749, main_~d~0=v_main_~d~0_4933, main_~e~0=v_main_~e~0_18602} OutVars{main_~c~0=v_main_~c~0_1749, main_~d~0=v_main_~d~0_4933, main_~e~0=v_main_~e~0_18602} AuxVars[] AssignedVars[] [2021-05-03 00:44:37,922 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:44:37,977 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:44:37,983 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:44:38,021 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:44:38,096 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_4935 5) (<= 5 v_main_~e~0_18605)) InVars {main_~d~0=v_main_~d~0_4935, main_~e~0=v_main_~e~0_18605} OutVars{main_~d~0=v_main_~d~0_4935, main_~e~0=v_main_~e~0_18605} AuxVars[] AssignedVars[] [2021-05-03 00:44:38,097 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:44:38,099 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:44:38,105 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:44:38,158 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:44:38,213 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_18607 5) InVars {main_~e~0=v_main_~e~0_18607} OutVars{main_~e~0=v_main_~e~0_18607} AuxVars[] AssignedVars[] [2021-05-03 00:44:38,214 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:44:38,231 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:44:38,242 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:44:38,261 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:44:38,295 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:44:38,297 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:44:38,337 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:44:38,373 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~c~0_1749 5) (<= 5 v_main_~e~0_18602) (<= 5 v_main_~d~0_4933)) InVars {main_~c~0=v_main_~c~0_1749, main_~d~0=v_main_~d~0_4933, main_~e~0=v_main_~e~0_18602} OutVars{main_~c~0=v_main_~c~0_1749, main_~d~0=v_main_~d~0_4933, main_~e~0=v_main_~e~0_18602} AuxVars[] AssignedVars[] [2021-05-03 00:44:38,375 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:44:38,430 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:44:38,435 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:44:38,475 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:44:38,561 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_4935 5) (<= 5 v_main_~e~0_18605)) InVars {main_~d~0=v_main_~d~0_4935, main_~e~0=v_main_~e~0_18605} OutVars{main_~d~0=v_main_~d~0_4935, main_~e~0=v_main_~e~0_18605} AuxVars[] AssignedVars[] [2021-05-03 00:44:38,564 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:44:38,566 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:44:38,572 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:44:38,627 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:44:38,680 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_18607 5) InVars {main_~e~0=v_main_~e~0_18607} OutVars{main_~e~0=v_main_~e~0_18607} AuxVars[] AssignedVars[] [2021-05-03 00:44:38,682 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:44:38,683 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:44:38,692 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:44:38,729 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:44:38,784 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:44:38,786 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:44:38,840 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:44:38,870 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:44:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:44:38,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:44:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:44:38,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:44:49,633 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:44:49,633 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [954971696] [2021-05-03 00:44:49,633 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [954971696] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:44:49,634 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:44:49,634 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [97] imperfect sequences [] total 97 [2021-05-03 00:44:49,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786408872] [2021-05-03 00:44:49,634 INFO L460 AbstractCegarLoop]: Interpolant automaton has 97 states [2021-05-03 00:44:49,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:44:49,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2021-05-03 00:44:49,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=427, Invalid=8885, Unknown=0, NotChecked=0, Total=9312 [2021-05-03 00:44:49,635 INFO L87 Difference]: Start difference. First operand 210 states and 214 transitions. Second operand has 97 states, 97 states have (on average 2.1237113402061856) internal successors, (206), 96 states have internal predecessors, (206), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:45:13,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:45:13,537 INFO L93 Difference]: Finished difference Result 242 states and 258 transitions. [2021-05-03 00:45:13,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-05-03 00:45:13,539 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 2.1237113402061856) internal successors, (206), 96 states have internal predecessors, (206), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 209 [2021-05-03 00:45:13,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:45:13,540 INFO L225 Difference]: With dead ends: 242 [2021-05-03 00:45:13,540 INFO L226 Difference]: Without dead ends: 229 [2021-05-03 00:45:13,542 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 89 SyntacticMatches, 26 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9493 ImplicationChecksByTransitivity, 21676.4ms TimeCoverageRelationStatistics Valid=1275, Invalid=35015, Unknown=0, NotChecked=0, Total=36290 [2021-05-03 00:45:13,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-05-03 00:45:13,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 212. [2021-05-03 00:45:13,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 208 states have (on average 1.0240384615384615) internal successors, (213), 208 states have internal predecessors, (213), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:45:13,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 216 transitions. [2021-05-03 00:45:13,772 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 216 transitions. Word has length 209 [2021-05-03 00:45:13,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:45:13,772 INFO L480 AbstractCegarLoop]: Abstraction has 212 states and 216 transitions. [2021-05-03 00:45:13,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 97 states, 97 states have (on average 2.1237113402061856) internal successors, (206), 96 states have internal predecessors, (206), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:45:13,772 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 216 transitions. [2021-05-03 00:45:13,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-05-03 00:45:13,773 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:45:13,773 INFO L523 BasicCegarLoop]: trace histogram [74, 74, 13, 13, 13, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:45:13,773 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-05-03 00:45:13,773 INFO L428 AbstractCegarLoop]: === Iteration 94 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:45:13,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:45:13,773 INFO L82 PathProgramCache]: Analyzing trace with hash -604956645, now seen corresponding path program 88 times [2021-05-03 00:45:13,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:45:13,774 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1967570485] [2021-05-03 00:45:13,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:45:14,896 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 205 DAG size of output: 158 [2021-05-03 00:45:15,037 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 30 [2021-05-03 00:45:15,419 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_18951) (<= 5 v_main_~d~0_5021) (< v_main_~c~0_1780 5)) InVars {main_~c~0=v_main_~c~0_1780, main_~d~0=v_main_~d~0_5021, main_~e~0=v_main_~e~0_18951} OutVars{main_~c~0=v_main_~c~0_1780, main_~d~0=v_main_~d~0_5021, main_~e~0=v_main_~e~0_18951} AuxVars[] AssignedVars[] [2021-05-03 00:45:15,421 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:45:15,476 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:45:15,482 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:45:15,509 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:45:15,573 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_5023 5) (<= 5 v_main_~e~0_18954)) InVars {main_~d~0=v_main_~d~0_5023, main_~e~0=v_main_~e~0_18954} OutVars{main_~d~0=v_main_~d~0_5023, main_~e~0=v_main_~e~0_18954} AuxVars[] AssignedVars[] [2021-05-03 00:45:15,575 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:45:15,609 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:45:15,613 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:45:15,631 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:45:15,675 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_18956 5) InVars {main_~e~0=v_main_~e~0_18956} OutVars{main_~e~0=v_main_~e~0_18956} AuxVars[] AssignedVars[] [2021-05-03 00:45:15,676 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:45:15,689 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:45:15,699 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:45:15,713 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:45:15,745 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_18951) (<= 5 v_main_~d~0_5021) (< v_main_~c~0_1780 5)) InVars {main_~c~0=v_main_~c~0_1780, main_~d~0=v_main_~d~0_5021, main_~e~0=v_main_~e~0_18951} OutVars{main_~c~0=v_main_~c~0_1780, main_~d~0=v_main_~d~0_5021, main_~e~0=v_main_~e~0_18951} AuxVars[] AssignedVars[] [2021-05-03 00:45:15,747 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:45:15,789 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:45:15,794 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:45:15,822 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:45:15,873 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_5023 5) (<= 5 v_main_~e~0_18954)) InVars {main_~d~0=v_main_~d~0_5023, main_~e~0=v_main_~e~0_18954} OutVars{main_~d~0=v_main_~d~0_5023, main_~e~0=v_main_~e~0_18954} AuxVars[] AssignedVars[] [2021-05-03 00:45:15,875 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:45:15,876 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:45:15,880 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:45:15,918 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:45:15,958 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_18956 5) InVars {main_~e~0=v_main_~e~0_18956} OutVars{main_~e~0=v_main_~e~0_18956} AuxVars[] AssignedVars[] [2021-05-03 00:45:15,960 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:45:15,974 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:45:15,982 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:45:15,996 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:45:16,022 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:45:16,023 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:45:16,053 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-03 00:45:16,079 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 5 v_main_~e~0_18951) (<= 5 v_main_~d~0_5021) (< v_main_~c~0_1780 5)) InVars {main_~c~0=v_main_~c~0_1780, main_~d~0=v_main_~d~0_5021, main_~e~0=v_main_~e~0_18951} OutVars{main_~c~0=v_main_~c~0_1780, main_~d~0=v_main_~d~0_5021, main_~e~0=v_main_~e~0_18951} AuxVars[] AssignedVars[] [2021-05-03 00:45:16,081 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size [2021-05-03 00:45:16,125 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:45:16,130 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:45:16,161 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-05-03 00:45:16,220 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~d~0_5023 5) (<= 5 v_main_~e~0_18954)) InVars {main_~d~0=v_main_~d~0_5023, main_~e~0=v_main_~e~0_18954} OutVars{main_~d~0=v_main_~d~0_5023, main_~e~0=v_main_~e~0_18954} AuxVars[] AssignedVars[] [2021-05-03 00:45:16,222 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size [2021-05-03 00:45:16,251 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:45:16,256 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-03 00:45:16,276 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.0 percent of original size 53 [2021-05-03 00:45:16,318 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~e~0_18956 5) InVars {main_~e~0=v_main_~e~0_18956} OutVars{main_~e~0=v_main_~e~0_18956} AuxVars[] AssignedVars[] [2021-05-03 00:45:16,320 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size [2021-05-03 00:45:16,333 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:45:16,340 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-03 00:45:16,351 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 92.2 percent of original size 47 [2021-05-03 00:45:16,394 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-03 00:45:16,395 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:45:16,440 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-03 00:45:16,465 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:45:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:45:16,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:45:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:45:16,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.