/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/loops-crafted-1/vnew1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-03 00:25:21,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-03 00:25:21,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-03 00:25:21,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-03 00:25:21,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-03 00:25:21,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-03 00:25:21,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-03 00:25:21,561 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 00:25:21,574 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-03 00:25:21,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-03 00:25:21,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-03 00:25:21,577 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-03 00:25:21,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-03 00:25:21,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-03 00:25:21,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-03 00:25:21,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-03 00:25:21,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-03 00:25:21,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-03 00:25:21,578 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-03 00:25:21,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-03 00:25:21,578 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-03 00:25:21,579 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-03 00:25:21,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-03 00:25:21,579 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-03 00:25:21,579 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-03 00:25:21,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-03 00:25:21,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-03 00:25:21,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-03 00:25:21,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-03 00:25:21,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-03 00:25:21,580 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-03 00:25:21,580 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-03 00:25:21,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-03 00:25:21,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-03 00:25:21,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-03 00:25:21,926 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-03 00:25:21,927 INFO L275 PluginConnector]: CDTParser initialized [2021-05-03 00:25:21,927 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/vnew1.c [2021-05-03 00:25:21,979 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4aec5f683/7825d63b842944a0b89ecfe98e769c91/FLAG293cce5d7 [2021-05-03 00:25:22,311 INFO L306 CDTParser]: Found 1 translation units. [2021-05-03 00:25:22,312 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/vnew1.c [2021-05-03 00:25:22,316 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4aec5f683/7825d63b842944a0b89ecfe98e769c91/FLAG293cce5d7 [2021-05-03 00:25:22,742 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4aec5f683/7825d63b842944a0b89ecfe98e769c91 [2021-05-03 00:25:22,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-03 00:25:22,746 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-03 00:25:22,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-03 00:25:22,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-03 00:25:22,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-03 00:25:22,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 12:25:22" (1/1) ... [2021-05-03 00:25:22,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ea02956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:25:22, skipping insertion in model container [2021-05-03 00:25:22,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 12:25:22" (1/1) ... [2021-05-03 00:25:22,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-03 00:25:22,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-03 00:25:22,869 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/vnew1.c[403,416] [2021-05-03 00:25:22,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-03 00:25:22,884 INFO L203 MainTranslator]: Completed pre-run [2021-05-03 00:25:22,928 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/vnew1.c[403,416] [2021-05-03 00:25:22,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-03 00:25:22,961 INFO L208 MainTranslator]: Completed translation [2021-05-03 00:25:22,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:25:22 WrapperNode [2021-05-03 00:25:22,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-03 00:25:22,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-03 00:25:22,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-03 00:25:22,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-03 00:25:22,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:25:22" (1/1) ... [2021-05-03 00:25:22,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:25:22" (1/1) ... [2021-05-03 00:25:22,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:25:22" (1/1) ... [2021-05-03 00:25:22,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:25:22" (1/1) ... [2021-05-03 00:25:22,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:25:22" (1/1) ... [2021-05-03 00:25:22,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:25:22" (1/1) ... [2021-05-03 00:25:22,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:25:22" (1/1) ... [2021-05-03 00:25:22,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-03 00:25:22,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-03 00:25:22,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-03 00:25:22,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-03 00:25:23,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:25:22" (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 00:25:23,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-03 00:25:23,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-03 00:25:23,093 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-03 00:25:23,093 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-03 00:25:23,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-03 00:25:23,093 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-03 00:25:23,093 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-03 00:25:23,093 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-03 00:25:23,093 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-03 00:25:23,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-03 00:25:23,094 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-03 00:25:23,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-03 00:25:23,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-05-03 00:25:23,094 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-03 00:25:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-03 00:25:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-03 00:25:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-03 00:25:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-03 00:25:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-03 00:25:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-03 00:25:23,353 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-03 00:25:23,354 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-05-03 00:25:23,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 12:25:23 BoogieIcfgContainer [2021-05-03 00:25:23,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-03 00:25:23,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-03 00:25:23,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-03 00:25:23,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-03 00:25:23,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.05 12:25:22" (1/3) ... [2021-05-03 00:25:23,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe547a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 12:25:23, skipping insertion in model container [2021-05-03 00:25:23,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:25:22" (2/3) ... [2021-05-03 00:25:23,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe547a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 12:25:23, skipping insertion in model container [2021-05-03 00:25:23,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 12:25:23" (3/3) ... [2021-05-03 00:25:23,360 INFO L111 eAbstractionObserver]: Analyzing ICFG vnew1.c [2021-05-03 00:25:23,364 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-03 00:25:23,366 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-03 00:25:23,378 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-03 00:25:23,391 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-03 00:25:23,392 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-03 00:25:23,392 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-03 00:25:23,392 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-03 00:25:23,392 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-03 00:25:23,392 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-03 00:25:23,392 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-03 00:25:23,392 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-03 00:25:23,401 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-03 00:25:23,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-05-03 00:25:23,407 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:25:23,407 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:25:23,407 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:25:23,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:25:23,411 INFO L82 PathProgramCache]: Analyzing trace with hash 486508050, now seen corresponding path program 1 times [2021-05-03 00:25:23,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:25:23,417 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [449992411] [2021-05-03 00:25:23,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:25:23,470 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-03 00:25:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:25:23,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:25:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:25:23,763 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 00:25:23,764 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:25:23,764 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [449992411] [2021-05-03 00:25:23,766 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [449992411] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:25:23,766 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:25:23,766 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-03 00:25:23,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749471359] [2021-05-03 00:25:23,769 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-03 00:25:23,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:25:23,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-03 00:25:23,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-05-03 00:25:23,779 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:25:24,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:25:24,040 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2021-05-03 00:25:24,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 00:25:24,042 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-05-03 00:25:24,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:25:24,046 INFO L225 Difference]: With dead ends: 44 [2021-05-03 00:25:24,046 INFO L226 Difference]: Without dead ends: 19 [2021-05-03 00:25:24,048 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 234.3ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-05-03 00:25:24,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-05-03 00:25:24,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-05-03 00:25:24,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-03 00:25:24,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-05-03 00:25:24,098 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2021-05-03 00:25:24,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:25:24,099 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-05-03 00:25:24,099 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:25:24,099 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-05-03 00:25:24,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-05-03 00:25:24,099 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:25:24,099 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:25:24,100 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-03 00:25:24,100 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:25:24,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:25:24,101 INFO L82 PathProgramCache]: Analyzing trace with hash 77944193, now seen corresponding path program 1 times [2021-05-03 00:25:24,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:25:24,101 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1832874437] [2021-05-03 00:25:24,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:25:24,146 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< (mod v_main_~i~0_7 4294967296) (mod v_main_~n~0_10 4294967296)) InVars {main_~i~0=v_main_~i~0_7, main_~n~0=v_main_~n~0_10} OutVars{main_~i~0=v_main_~i~0_7, main_~n~0=v_main_~n~0_10} AuxVars[] AssignedVars[] [2021-05-03 00:25:24,170 WARN L240 tifierPushTermWalker]: treesize reduction 9, result has 89.5 percent of original size [2021-05-03 00:25:24,222 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,277 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,284 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,323 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-03 00:25:24,324 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-05-03 00:25:24,325 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,329 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,331 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,350 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-03 00:25:24,351 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-05-03 00:25:24,352 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,378 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-05-03 00:25:24,379 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-03 00:25:24,380 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,384 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,388 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,417 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-03 00:25:24,418 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-05-03 00:25:24,419 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,442 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-05-03 00:25:24,445 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-03 00:25:24,447 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,483 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-03 00:25:24,484 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-03 00:25:24,485 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,490 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,491 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,500 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-03 00:25:24,502 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-05-03 00:25:24,503 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,509 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,511 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,521 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-03 00:25:24,521 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-05-03 00:25:24,523 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,541 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-05-03 00:25:24,542 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-03 00:25:24,543 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,551 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,553 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,563 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-03 00:25:24,564 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-05-03 00:25:24,565 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,603 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-05-03 00:25:24,607 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-03 00:25:24,609 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,654 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-03 00:25:24,655 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-03 00:25:24,702 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,704 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,714 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-03 00:25:24,714 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-05-03 00:25:24,716 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,721 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,722 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,739 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-03 00:25:24,740 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-05-03 00:25:24,742 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,761 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-03 00:25:24,762 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-03 00:25:24,764 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,769 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,772 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,781 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-03 00:25:24,782 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-05-03 00:25:24,785 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,807 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-05-03 00:25:24,808 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-03 00:25:24,809 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:25:24,835 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-03 00:25:24,844 WARN L245 tifierPushTermWalker]: treesize reduction 9, result has 89.5 percent of original size 77 [2021-05-03 00:25:24,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:24,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:24,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:24,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:24,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:25,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:27,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:27,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:27,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:27,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:27,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:27,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:27,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:27,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:27,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:27,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:27,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:27,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:27,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:27,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:27,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:28,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:28,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:28,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:28,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:28,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:28,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:28,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:28,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:28,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:28,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:29,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:29,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:29,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:29,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:29,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:29,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:29,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:29,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:29,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:29,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:29,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:29,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:29,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:29,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:29,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:30,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:43,792 WARN L205 SmtUtils]: Spent 13.51 s on a formula simplification. DAG size of input: 6069 DAG size of output: 6038 [2021-05-03 00:25:46,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:25:58,504 WARN L205 SmtUtils]: Spent 12.07 s on a formula simplification. DAG size of input: 5714 DAG size of output: 5612