/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test25-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 23:05:28,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 23:05:28,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 23:05:28,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 23:05:28,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 23:05:28,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 23:05:28,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 23:05:28,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 23:05:28,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 23:05:28,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 23:05:28,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 23:05:28,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 23:05:28,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 23:05:28,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 23:05:28,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 23:05:28,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 23:05:28,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 23:05:28,666 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 23:05:28,686 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 23:05:28,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 23:05:28,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 23:05:28,688 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 23:05:28,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 23:05:28,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 23:05:28,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 23:05:28,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 23:05:28,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 23:05:28,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 23:05:28,689 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 23:05:28,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 23:05:28,690 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 23:05:28,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 23:05:28,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 23:05:28,691 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 23:05:28,691 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 23:05:28,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 23:05:28,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 23:05:28,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 23:05:28,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 23:05:28,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 23:05:28,692 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 23:05:29,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 23:05:29,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 23:05:29,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 23:05:29,135 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 23:05:29,136 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 23:05:29,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test25-2.c [2021-02-23 23:05:29,216 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c36353fc/5067dc025cc143638645d6355e652d1a/FLAG68760f4d8 [2021-02-23 23:05:29,882 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 23:05:29,883 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test25-2.c [2021-02-23 23:05:29,890 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c36353fc/5067dc025cc143638645d6355e652d1a/FLAG68760f4d8 [2021-02-23 23:05:30,243 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c36353fc/5067dc025cc143638645d6355e652d1a [2021-02-23 23:05:30,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 23:05:30,261 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 23:05:30,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 23:05:30,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 23:05:30,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 23:05:30,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:05:30" (1/1) ... [2021-02-23 23:05:30,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e09cf2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:05:30, skipping insertion in model container [2021-02-23 23:05:30,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:05:30" (1/1) ... [2021-02-23 23:05:30,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 23:05:30,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 23:05:30,454 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test25-2.c[949,962] [2021-02-23 23:05:30,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:05:30,467 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 23:05:30,490 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test25-2.c[949,962] [2021-02-23 23:05:30,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:05:30,516 INFO L208 MainTranslator]: Completed translation [2021-02-23 23:05:30,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:05:30 WrapperNode [2021-02-23 23:05:30,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 23:05:30,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 23:05:30,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 23:05:30,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 23:05:30,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:05:30" (1/1) ... [2021-02-23 23:05:30,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:05:30" (1/1) ... [2021-02-23 23:05:30,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:05:30" (1/1) ... [2021-02-23 23:05:30,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:05:30" (1/1) ... [2021-02-23 23:05:30,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:05:30" (1/1) ... [2021-02-23 23:05:30,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:05:30" (1/1) ... [2021-02-23 23:05:30,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:05:30" (1/1) ... [2021-02-23 23:05:30,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 23:05:30,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 23:05:30,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 23:05:30,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 23:05:30,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:05:30" (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 [2021-02-23 23:05:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 23:05:30,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 23:05:30,701 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 23:05:30,702 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2021-02-23 23:05:30,703 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 23:05:30,703 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 23:05:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 23:05:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 23:05:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 23:05:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 23:05:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure check [2021-02-23 23:05:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 23:05:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 23:05:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 23:05:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 23:05:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 23:05:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 23:05:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 23:05:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 23:05:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 23:05:31,368 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 23:05:31,370 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-02-23 23:05:31,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:05:31 BoogieIcfgContainer [2021-02-23 23:05:31,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 23:05:31,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 23:05:31,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 23:05:31,380 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 23:05:31,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 11:05:30" (1/3) ... [2021-02-23 23:05:31,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3549f6b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:05:31, skipping insertion in model container [2021-02-23 23:05:31,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:05:30" (2/3) ... [2021-02-23 23:05:31,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3549f6b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:05:31, skipping insertion in model container [2021-02-23 23:05:31,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:05:31" (3/3) ... [2021-02-23 23:05:31,385 INFO L111 eAbstractionObserver]: Analyzing ICFG test25-2.c [2021-02-23 23:05:31,392 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 23:05:31,398 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 23:05:31,420 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 23:05:31,455 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 23:05:31,456 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 23:05:31,456 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 23:05:31,456 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 23:05:31,456 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 23:05:31,457 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 23:05:31,457 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 23:05:31,457 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 23:05:31,476 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2021-02-23 23:05:31,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-02-23 23:05:31,487 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:05:31,488 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:05:31,489 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:05:31,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:05:31,495 INFO L82 PathProgramCache]: Analyzing trace with hash 847318891, now seen corresponding path program 1 times [2021-02-23 23:05:31,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:05:31,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490960061] [2021-02-23 23:05:31,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:05:31,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:31,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:31,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:31,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:31,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:31,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:05:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:31,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:31,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:31,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-23 23:05:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:31,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:31,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:31,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:05:31,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490960061] [2021-02-23 23:05:31,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:05:31,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 23:05:31,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649053851] [2021-02-23 23:05:31,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 23:05:31,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:05:31,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 23:05:31,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 23:05:31,902 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 3 states. [2021-02-23 23:05:32,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:05:32,094 INFO L93 Difference]: Finished difference Result 130 states and 140 transitions. [2021-02-23 23:05:32,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 23:05:32,096 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2021-02-23 23:05:32,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:05:32,106 INFO L225 Difference]: With dead ends: 130 [2021-02-23 23:05:32,107 INFO L226 Difference]: Without dead ends: 65 [2021-02-23 23:05:32,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 23:05:32,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-02-23 23:05:32,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-02-23 23:05:32,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2021-02-23 23:05:32,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2021-02-23 23:05:32,165 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 49 [2021-02-23 23:05:32,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:05:32,166 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2021-02-23 23:05:32,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 23:05:32,166 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2021-02-23 23:05:32,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-02-23 23:05:32,168 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:05:32,168 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:05:32,169 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 23:05:32,169 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:05:32,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:05:32,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1728113038, now seen corresponding path program 1 times [2021-02-23 23:05:32,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:05:32,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799047229] [2021-02-23 23:05:32,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:05:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:32,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:32,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:32,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:32,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:32,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:32,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:32,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:05:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:32,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:32,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:32,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-23 23:05:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:32,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:32,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:32,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:05:32,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799047229] [2021-02-23 23:05:32,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:05:32,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 23:05:32,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163993929] [2021-02-23 23:05:32,386 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 23:05:32,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:05:32,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 23:05:32,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 23:05:32,388 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 4 states. [2021-02-23 23:05:32,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:05:32,535 INFO L93 Difference]: Finished difference Result 109 states and 111 transitions. [2021-02-23 23:05:32,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 23:05:32,535 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2021-02-23 23:05:32,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:05:32,537 INFO L225 Difference]: With dead ends: 109 [2021-02-23 23:05:32,537 INFO L226 Difference]: Without dead ends: 74 [2021-02-23 23:05:32,541 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 23:05:32,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-02-23 23:05:32,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 66. [2021-02-23 23:05:32,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2021-02-23 23:05:32,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2021-02-23 23:05:32,572 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 51 [2021-02-23 23:05:32,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:05:32,573 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2021-02-23 23:05:32,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 23:05:32,575 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2021-02-23 23:05:32,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-02-23 23:05:32,579 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:05:32,579 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:05:32,580 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 23:05:32,580 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:05:32,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:05:32,580 INFO L82 PathProgramCache]: Analyzing trace with hash 223289900, now seen corresponding path program 1 times [2021-02-23 23:05:32,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:05:32,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [854868684] [2021-02-23 23:05:32,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:05:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:32,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:32,724 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:32,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:32,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:32,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:32,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:32,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:32,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:32,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:32,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:32,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:05:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:32,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:32,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:32,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-23 23:05:32,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:32,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:32,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:32,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:05:32,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [854868684] [2021-02-23 23:05:32,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:05:32,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-02-23 23:05:32,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518975191] [2021-02-23 23:05:32,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 23:05:32,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:05:32,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 23:05:32,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-02-23 23:05:32,794 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 6 states. [2021-02-23 23:05:33,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:05:33,004 INFO L93 Difference]: Finished difference Result 119 states and 121 transitions. [2021-02-23 23:05:33,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-23 23:05:33,005 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2021-02-23 23:05:33,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:05:33,008 INFO L225 Difference]: With dead ends: 119 [2021-02-23 23:05:33,009 INFO L226 Difference]: Without dead ends: 84 [2021-02-23 23:05:33,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-02-23 23:05:33,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-02-23 23:05:33,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 76. [2021-02-23 23:05:33,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2021-02-23 23:05:33,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 77 transitions. [2021-02-23 23:05:33,046 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 77 transitions. Word has length 61 [2021-02-23 23:05:33,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:05:33,047 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 77 transitions. [2021-02-23 23:05:33,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 23:05:33,047 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 77 transitions. [2021-02-23 23:05:33,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-02-23 23:05:33,049 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:05:33,050 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:05:33,050 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 23:05:33,050 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:05:33,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:05:33,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1601654118, now seen corresponding path program 2 times [2021-02-23 23:05:33,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:05:33,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399533037] [2021-02-23 23:05:33,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:05:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:33,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:33,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:33,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:33,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:33,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:33,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:33,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:33,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:33,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:33,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:33,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:33,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:33,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:33,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:33,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:05:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:33,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:33,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:33,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-02-23 23:05:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:33,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:33,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:33,238 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:05:33,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399533037] [2021-02-23 23:05:33,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:05:33,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-02-23 23:05:33,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288734430] [2021-02-23 23:05:33,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 23:05:33,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:05:33,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 23:05:33,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-02-23 23:05:33,242 INFO L87 Difference]: Start difference. First operand 76 states and 77 transitions. Second operand 8 states. [2021-02-23 23:05:33,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:05:33,457 INFO L93 Difference]: Finished difference Result 129 states and 131 transitions. [2021-02-23 23:05:33,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 23:05:33,458 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 71 [2021-02-23 23:05:33,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:05:33,459 INFO L225 Difference]: With dead ends: 129 [2021-02-23 23:05:33,460 INFO L226 Difference]: Without dead ends: 94 [2021-02-23 23:05:33,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-02-23 23:05:33,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-02-23 23:05:33,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 86. [2021-02-23 23:05:33,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2021-02-23 23:05:33,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 87 transitions. [2021-02-23 23:05:33,473 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 87 transitions. Word has length 71 [2021-02-23 23:05:33,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:05:33,473 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 87 transitions. [2021-02-23 23:05:33,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 23:05:33,473 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 87 transitions. [2021-02-23 23:05:33,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-02-23 23:05:33,475 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:05:33,475 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:05:33,475 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 23:05:33,476 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:05:33,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:05:33,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1165375520, now seen corresponding path program 3 times [2021-02-23 23:05:33,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:05:33,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [723934343] [2021-02-23 23:05:33,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:05:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:33,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:33,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:33,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:33,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:33,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:33,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:33,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:33,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:33,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:33,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:33,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:33,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:33,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:33,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:33,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:33,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:33,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:33,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:33,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:05:33,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:33,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:33,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:33,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-23 23:05:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:33,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:33,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:33,698 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:05:33,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [723934343] [2021-02-23 23:05:33,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:05:33,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-23 23:05:33,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288428937] [2021-02-23 23:05:33,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 23:05:33,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:05:33,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 23:05:33,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-02-23 23:05:33,702 INFO L87 Difference]: Start difference. First operand 86 states and 87 transitions. Second operand 10 states. [2021-02-23 23:05:33,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:05:33,942 INFO L93 Difference]: Finished difference Result 139 states and 141 transitions. [2021-02-23 23:05:33,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-23 23:05:33,943 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2021-02-23 23:05:33,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:05:33,948 INFO L225 Difference]: With dead ends: 139 [2021-02-23 23:05:33,948 INFO L226 Difference]: Without dead ends: 104 [2021-02-23 23:05:33,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2021-02-23 23:05:33,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-02-23 23:05:33,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 96. [2021-02-23 23:05:33,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2021-02-23 23:05:33,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 97 transitions. [2021-02-23 23:05:33,980 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 97 transitions. Word has length 81 [2021-02-23 23:05:33,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:05:33,982 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 97 transitions. [2021-02-23 23:05:33,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 23:05:33,983 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 97 transitions. [2021-02-23 23:05:33,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-02-23 23:05:33,984 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:05:33,984 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:05:33,985 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 23:05:33,985 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:05:33,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:05:33,988 INFO L82 PathProgramCache]: Analyzing trace with hash 2139259482, now seen corresponding path program 4 times [2021-02-23 23:05:33,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:05:33,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1724282922] [2021-02-23 23:05:33,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:05:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:34,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:34,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:34,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:34,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:34,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:34,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:34,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:34,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:34,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:34,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:34,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:34,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:05:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:34,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:34,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-02-23 23:05:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:34,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:34,284 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:05:34,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1724282922] [2021-02-23 23:05:34,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:05:34,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-02-23 23:05:34,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915695539] [2021-02-23 23:05:34,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-23 23:05:34,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:05:34,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-23 23:05:34,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-02-23 23:05:34,288 INFO L87 Difference]: Start difference. First operand 96 states and 97 transitions. Second operand 12 states. [2021-02-23 23:05:34,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:05:34,589 INFO L93 Difference]: Finished difference Result 149 states and 151 transitions. [2021-02-23 23:05:34,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-23 23:05:34,589 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 91 [2021-02-23 23:05:34,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:05:34,591 INFO L225 Difference]: With dead ends: 149 [2021-02-23 23:05:34,591 INFO L226 Difference]: Without dead ends: 114 [2021-02-23 23:05:34,597 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2021-02-23 23:05:34,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-02-23 23:05:34,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 106. [2021-02-23 23:05:34,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2021-02-23 23:05:34,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 107 transitions. [2021-02-23 23:05:34,619 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 107 transitions. Word has length 91 [2021-02-23 23:05:34,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:05:34,619 INFO L480 AbstractCegarLoop]: Abstraction has 106 states and 107 transitions. [2021-02-23 23:05:34,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-23 23:05:34,620 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 107 transitions. [2021-02-23 23:05:34,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-02-23 23:05:34,626 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:05:34,627 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:05:34,627 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 23:05:34,629 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:05:34,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:05:34,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1913310228, now seen corresponding path program 5 times [2021-02-23 23:05:34,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:05:34,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242334889] [2021-02-23 23:05:34,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:05:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:34,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:34,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:34,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:34,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:34,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:34,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:34,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:34,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:34,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:34,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:34,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:34,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:34,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:34,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:05:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:34,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:34,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-02-23 23:05:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:34,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:34,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:34,888 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:05:34,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1242334889] [2021-02-23 23:05:34,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:05:34,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-02-23 23:05:34,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977562274] [2021-02-23 23:05:34,891 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-23 23:05:34,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:05:34,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-23 23:05:34,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-02-23 23:05:34,892 INFO L87 Difference]: Start difference. First operand 106 states and 107 transitions. Second operand 14 states. [2021-02-23 23:05:35,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:05:35,216 INFO L93 Difference]: Finished difference Result 159 states and 161 transitions. [2021-02-23 23:05:35,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-23 23:05:35,217 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 101 [2021-02-23 23:05:35,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:05:35,218 INFO L225 Difference]: With dead ends: 159 [2021-02-23 23:05:35,218 INFO L226 Difference]: Without dead ends: 124 [2021-02-23 23:05:35,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=372, Unknown=0, NotChecked=0, Total=552 [2021-02-23 23:05:35,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-02-23 23:05:35,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 116. [2021-02-23 23:05:35,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2021-02-23 23:05:35,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 117 transitions. [2021-02-23 23:05:35,229 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 117 transitions. Word has length 101 [2021-02-23 23:05:35,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:05:35,229 INFO L480 AbstractCegarLoop]: Abstraction has 116 states and 117 transitions. [2021-02-23 23:05:35,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-23 23:05:35,229 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 117 transitions. [2021-02-23 23:05:35,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-02-23 23:05:35,231 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:05:35,231 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:05:35,231 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 23:05:35,231 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:05:35,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:05:35,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1068873038, now seen corresponding path program 6 times [2021-02-23 23:05:35,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:05:35,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [241914377] [2021-02-23 23:05:35,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:05:35,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:35,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:35,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:35,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:35,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:35,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:35,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:35,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:35,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:35,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:35,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:35,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:35,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:35,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:35,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:35,325 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:35,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:35,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:35,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:35,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:35,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:35,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:35,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:35,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:35,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:35,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:35,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:35,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:35,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:35,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:35,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:35,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:05:35,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:35,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:35,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:35,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-23 23:05:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:35,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:35,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:35,479 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:05:35,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [241914377] [2021-02-23 23:05:35,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:05:35,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2021-02-23 23:05:35,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806436578] [2021-02-23 23:05:35,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-23 23:05:35,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:05:35,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-23 23:05:35,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-02-23 23:05:35,481 INFO L87 Difference]: Start difference. First operand 116 states and 117 transitions. Second operand 16 states. [2021-02-23 23:05:35,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:05:35,988 INFO L93 Difference]: Finished difference Result 169 states and 171 transitions. [2021-02-23 23:05:35,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-23 23:05:35,989 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 111 [2021-02-23 23:05:35,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:05:35,990 INFO L225 Difference]: With dead ends: 169 [2021-02-23 23:05:35,991 INFO L226 Difference]: Without dead ends: 134 [2021-02-23 23:05:35,992 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=245, Invalid=511, Unknown=0, NotChecked=0, Total=756 [2021-02-23 23:05:35,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-02-23 23:05:36,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 126. [2021-02-23 23:05:36,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2021-02-23 23:05:36,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 127 transitions. [2021-02-23 23:05:36,001 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 127 transitions. Word has length 111 [2021-02-23 23:05:36,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:05:36,002 INFO L480 AbstractCegarLoop]: Abstraction has 126 states and 127 transitions. [2021-02-23 23:05:36,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-23 23:05:36,002 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 127 transitions. [2021-02-23 23:05:36,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-02-23 23:05:36,003 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:05:36,004 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:05:36,004 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 23:05:36,004 INFO L428 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:05:36,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:05:36,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1667358216, now seen corresponding path program 7 times [2021-02-23 23:05:36,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:05:36,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1789466757] [2021-02-23 23:05:36,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:05:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:36,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:36,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,110 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,226 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,227 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:36,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:05:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:36,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:36,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-02-23 23:05:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:36,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:36,298 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:05:36,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1789466757] [2021-02-23 23:05:36,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:05:36,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2021-02-23 23:05:36,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846049921] [2021-02-23 23:05:36,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-02-23 23:05:36,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:05:36,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-02-23 23:05:36,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2021-02-23 23:05:36,301 INFO L87 Difference]: Start difference. First operand 126 states and 127 transitions. Second operand 18 states. [2021-02-23 23:05:36,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:05:36,695 INFO L93 Difference]: Finished difference Result 179 states and 181 transitions. [2021-02-23 23:05:36,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-23 23:05:36,695 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 121 [2021-02-23 23:05:36,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:05:36,697 INFO L225 Difference]: With dead ends: 179 [2021-02-23 23:05:36,697 INFO L226 Difference]: Without dead ends: 144 [2021-02-23 23:05:36,698 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=672, Unknown=0, NotChecked=0, Total=992 [2021-02-23 23:05:36,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-02-23 23:05:36,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 136. [2021-02-23 23:05:36,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2021-02-23 23:05:36,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 137 transitions. [2021-02-23 23:05:36,707 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 137 transitions. Word has length 121 [2021-02-23 23:05:36,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:05:36,708 INFO L480 AbstractCegarLoop]: Abstraction has 136 states and 137 transitions. [2021-02-23 23:05:36,708 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2021-02-23 23:05:36,708 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 137 transitions. [2021-02-23 23:05:36,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-02-23 23:05:36,709 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:05:36,709 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:05:36,710 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 23:05:36,710 INFO L428 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:05:36,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:05:36,710 INFO L82 PathProgramCache]: Analyzing trace with hash -903485886, now seen corresponding path program 8 times [2021-02-23 23:05:36,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:05:36,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2142592355] [2021-02-23 23:05:36,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:05:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:36,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:36,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,833 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:36,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:36,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:37,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:05:37,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:37,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:37,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-02-23 23:05:37,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:37,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:37,081 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:05:37,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2142592355] [2021-02-23 23:05:37,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:05:37,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2021-02-23 23:05:37,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43926820] [2021-02-23 23:05:37,083 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-02-23 23:05:37,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:05:37,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-02-23 23:05:37,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2021-02-23 23:05:37,084 INFO L87 Difference]: Start difference. First operand 136 states and 137 transitions. Second operand 20 states. [2021-02-23 23:05:37,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:05:37,665 INFO L93 Difference]: Finished difference Result 189 states and 191 transitions. [2021-02-23 23:05:37,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-23 23:05:37,665 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 131 [2021-02-23 23:05:37,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:05:37,667 INFO L225 Difference]: With dead ends: 189 [2021-02-23 23:05:37,667 INFO L226 Difference]: Without dead ends: 154 [2021-02-23 23:05:37,668 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=405, Invalid=855, Unknown=0, NotChecked=0, Total=1260 [2021-02-23 23:05:37,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-02-23 23:05:37,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 146. [2021-02-23 23:05:37,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2021-02-23 23:05:37,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 147 transitions. [2021-02-23 23:05:37,678 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 147 transitions. Word has length 131 [2021-02-23 23:05:37,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:05:37,678 INFO L480 AbstractCegarLoop]: Abstraction has 146 states and 147 transitions. [2021-02-23 23:05:37,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-02-23 23:05:37,678 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 147 transitions. [2021-02-23 23:05:37,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-02-23 23:05:37,679 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:05:37,680 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:05:37,680 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 23:05:37,680 INFO L428 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:05:37,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:05:37,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1833987580, now seen corresponding path program 9 times [2021-02-23 23:05:37,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:05:37,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734447940] [2021-02-23 23:05:37,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:05:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:37,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:37,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:37,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:37,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:37,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:37,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:37,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:37,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:37,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:37,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:37,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:37,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:37,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:37,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:37,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:37,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:37,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:37,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:37,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:37,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:37,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:37,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:05:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:37,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:37,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 23:05:37,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:37,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:37,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:38,019 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 0 proven. 369 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:05:38,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [734447940] [2021-02-23 23:05:38,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:05:38,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2021-02-23 23:05:38,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930172698] [2021-02-23 23:05:38,024 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-02-23 23:05:38,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:05:38,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-02-23 23:05:38,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2021-02-23 23:05:38,025 INFO L87 Difference]: Start difference. First operand 146 states and 147 transitions. Second operand 22 states. [2021-02-23 23:05:38,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:05:38,538 INFO L93 Difference]: Finished difference Result 191 states and 193 transitions. [2021-02-23 23:05:38,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-02-23 23:05:38,538 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 141 [2021-02-23 23:05:38,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:05:38,540 INFO L225 Difference]: With dead ends: 191 [2021-02-23 23:05:38,540 INFO L226 Difference]: Without dead ends: 156 [2021-02-23 23:05:38,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=500, Invalid=1060, Unknown=0, NotChecked=0, Total=1560 [2021-02-23 23:05:38,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-02-23 23:05:38,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2021-02-23 23:05:38,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2021-02-23 23:05:38,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 157 transitions. [2021-02-23 23:05:38,554 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 157 transitions. Word has length 141 [2021-02-23 23:05:38,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:05:38,554 INFO L480 AbstractCegarLoop]: Abstraction has 156 states and 157 transitions. [2021-02-23 23:05:38,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2021-02-23 23:05:38,555 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 157 transitions. [2021-02-23 23:05:38,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-02-23 23:05:38,556 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:05:38,556 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:05:38,556 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-23 23:05:38,557 INFO L428 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:05:38,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:05:38,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1818760502, now seen corresponding path program 10 times [2021-02-23 23:05:38,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:05:38,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703728419] [2021-02-23 23:05:38,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:05:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:39,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:39,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:39,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:39,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:39,580 WARN L141 QuantifierPusher]: treesize reduction 80, result has 12.1 percent of original size [2021-02-23 23:05:39,581 WARN L147 QuantifierPusher]: treesize reduction 80, result has 12.1 percent of original size 11 [2021-02-23 23:05:39,592 WARN L141 QuantifierPusher]: treesize reduction 79, result has 16.0 percent of original size [2021-02-23 23:05:39,593 WARN L147 QuantifierPusher]: treesize reduction 79, result has 16.0 percent of original size 15 [2021-02-23 23:05:39,606 WARN L141 QuantifierPusher]: treesize reduction 79, result has 16.0 percent of original size [2021-02-23 23:05:39,607 WARN L147 QuantifierPusher]: treesize reduction 79, result has 16.0 percent of original size 15 [2021-02-23 23:05:39,626 WARN L141 QuantifierPusher]: treesize reduction 72, result has 35.1 percent of original size [2021-02-23 23:05:39,630 WARN L147 QuantifierPusher]: treesize reduction 72, result has 35.1 percent of original size 39 [2021-02-23 23:05:39,675 WARN L141 QuantifierPusher]: treesize reduction 72, result has 35.1 percent of original size [2021-02-23 23:05:39,677 WARN L147 QuantifierPusher]: treesize reduction 72, result has 35.1 percent of original size 39 [2021-02-23 23:05:39,733 WARN L141 QuantifierPusher]: treesize reduction 132, result has 35.0 percent of original size [2021-02-23 23:05:39,738 WARN L147 QuantifierPusher]: treesize reduction 132, result has 35.0 percent of original size 71 [2021-02-23 23:05:39,794 WARN L141 QuantifierPusher]: treesize reduction 76, result has 40.2 percent of original size [2021-02-23 23:05:39,797 WARN L147 QuantifierPusher]: treesize reduction 76, result has 40.2 percent of original size 51 [2021-02-23 23:05:39,863 WARN L141 QuantifierPusher]: treesize reduction 100, result has 44.8 percent of original size [2021-02-23 23:05:39,870 WARN L147 QuantifierPusher]: treesize reduction 100, result has 44.8 percent of original size 81 [2021-02-23 23:05:39,950 WARN L141 QuantifierPusher]: treesize reduction 72, result has 25.0 percent of original size [2021-02-23 23:05:39,951 WARN L147 QuantifierPusher]: treesize reduction 72, result has 25.0 percent of original size 24 [2021-02-23 23:05:39,981 WARN L141 QuantifierPusher]: treesize reduction 72, result has 25.0 percent of original size [2021-02-23 23:05:39,982 WARN L147 QuantifierPusher]: treesize reduction 72, result has 25.0 percent of original size 24 [2021-02-23 23:05:40,011 WARN L141 QuantifierPusher]: treesize reduction 72, result has 25.0 percent of original size [2021-02-23 23:05:40,012 WARN L147 QuantifierPusher]: treesize reduction 72, result has 25.0 percent of original size 24 [2021-02-23 23:05:40,045 WARN L141 QuantifierPusher]: treesize reduction 72, result has 25.0 percent of original size [2021-02-23 23:05:40,046 WARN L147 QuantifierPusher]: treesize reduction 72, result has 25.0 percent of original size 24 [2021-02-23 23:05:40,081 WARN L141 QuantifierPusher]: treesize reduction 72, result has 25.0 percent of original size [2021-02-23 23:05:40,082 WARN L147 QuantifierPusher]: treesize reduction 72, result has 25.0 percent of original size 24 [2021-02-23 23:05:40,137 WARN L141 QuantifierPusher]: treesize reduction 72, result has 25.0 percent of original size [2021-02-23 23:05:40,138 WARN L147 QuantifierPusher]: treesize reduction 72, result has 25.0 percent of original size 24 [2021-02-23 23:05:40,171 WARN L141 QuantifierPusher]: treesize reduction 72, result has 25.0 percent of original size [2021-02-23 23:05:40,172 WARN L147 QuantifierPusher]: treesize reduction 72, result has 25.0 percent of original size 24 [2021-02-23 23:05:40,209 WARN L141 QuantifierPusher]: treesize reduction 72, result has 25.0 percent of original size [2021-02-23 23:05:40,210 WARN L147 QuantifierPusher]: treesize reduction 72, result has 25.0 percent of original size 24 [2021-02-23 23:05:40,248 WARN L141 QuantifierPusher]: treesize reduction 72, result has 25.0 percent of original size [2021-02-23 23:05:40,250 WARN L147 QuantifierPusher]: treesize reduction 72, result has 25.0 percent of original size 24 [2021-02-23 23:05:40,294 WARN L141 QuantifierPusher]: treesize reduction 72, result has 25.0 percent of original size [2021-02-23 23:05:40,297 WARN L147 QuantifierPusher]: treesize reduction 72, result has 25.0 percent of original size 24 [2021-02-23 23:05:40,338 WARN L141 QuantifierPusher]: treesize reduction 72, result has 25.0 percent of original size [2021-02-23 23:05:40,339 WARN L147 QuantifierPusher]: treesize reduction 72, result has 25.0 percent of original size 24 [2021-02-23 23:05:40,381 WARN L141 QuantifierPusher]: treesize reduction 77, result has 26.0 percent of original size [2021-02-23 23:05:40,382 WARN L147 QuantifierPusher]: treesize reduction 77, result has 26.0 percent of original size 27 [2021-02-23 23:05:40,422 WARN L141 QuantifierPusher]: treesize reduction 83, result has 11.7 percent of original size [2021-02-23 23:05:40,423 WARN L147 QuantifierPusher]: treesize reduction 83, result has 11.7 percent of original size 11 [2021-02-23 23:05:40,426 WARN L141 QuantifierPusher]: treesize reduction 80, result has 23.1 percent of original size [2021-02-23 23:05:40,427 WARN L147 QuantifierPusher]: treesize reduction 80, result has 23.1 percent of original size 24 [2021-02-23 23:05:40,473 WARN L141 QuantifierPusher]: treesize reduction 110, result has 49.3 percent of original size [2021-02-23 23:05:40,475 WARN L147 QuantifierPusher]: treesize reduction 110, result has 49.3 percent of original size 107 [2021-02-23 23:05:40,587 WARN L141 QuantifierPusher]: treesize reduction 213, result has 44.8 percent of original size [2021-02-23 23:05:40,590 WARN L147 QuantifierPusher]: treesize reduction 213, result has 44.8 percent of original size 173 [2021-02-23 23:05:40,751 WARN L141 QuantifierPusher]: treesize reduction 172, result has 63.5 percent of original size [2021-02-23 23:05:40,755 WARN L147 QuantifierPusher]: treesize reduction 172, result has 63.5 percent of original size 299 [2021-02-23 23:05:40,984 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 43 [2021-02-23 23:05:40,997 WARN L141 QuantifierPusher]: treesize reduction 136, result has 69.8 percent of original size [2021-02-23 23:05:41,004 WARN L147 QuantifierPusher]: treesize reduction 136, result has 69.8 percent of original size 315 [2021-02-23 23:05:41,321 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 37 [2021-02-23 23:05:41,327 WARN L141 QuantifierPusher]: treesize reduction 118, result has 64.1 percent of original size [2021-02-23 23:05:41,331 WARN L147 QuantifierPusher]: treesize reduction 118, result has 64.1 percent of original size 211 [2021-02-23 23:05:41,511 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 36 [2021-02-23 23:05:41,534 WARN L141 QuantifierPusher]: treesize reduction 280, result has 43.2 percent of original size [2021-02-23 23:05:41,537 WARN L147 QuantifierPusher]: treesize reduction 280, result has 43.2 percent of original size 213 [2021-02-23 23:05:41,712 WARN L141 QuantifierPusher]: treesize reduction 50, result has 44.4 percent of original size [2021-02-23 23:05:41,713 WARN L147 QuantifierPusher]: treesize reduction 50, result has 44.4 percent of original size 40 [2021-02-23 23:05:41,760 WARN L141 QuantifierPusher]: treesize reduction 59, result has 38.5 percent of original size [2021-02-23 23:05:41,761 WARN L147 QuantifierPusher]: treesize reduction 59, result has 38.5 percent of original size 37 [2021-02-23 23:05:41,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:41,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:05:41,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:41,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:41,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:05:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:41,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:41,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:41,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 23:05:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:41,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:41,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:42,052 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 105 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:05:42,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1703728419] [2021-02-23 23:05:42,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:05:42,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2021-02-23 23:05:42,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132072993] [2021-02-23 23:05:42,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-02-23 23:05:42,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:05:42,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-02-23 23:05:42,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=994, Unknown=0, NotChecked=0, Total=1122 [2021-02-23 23:05:42,055 INFO L87 Difference]: Start difference. First operand 156 states and 157 transitions. Second operand 34 states. [2021-02-23 23:05:45,027 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 32 [2021-02-23 23:05:45,209 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2021-02-23 23:05:45,369 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 43 [2021-02-23 23:05:45,732 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 44 [2021-02-23 23:05:45,993 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 49 [2021-02-23 23:05:46,177 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 44 [2021-02-23 23:05:46,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:05:46,503 INFO L93 Difference]: Finished difference Result 177 states and 178 transitions. [2021-02-23 23:05:46,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-02-23 23:05:46,504 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 151 [2021-02-23 23:05:46,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:05:46,505 INFO L225 Difference]: With dead ends: 177 [2021-02-23 23:05:46,505 INFO L226 Difference]: Without dead ends: 161 [2021-02-23 23:05:46,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1288 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=691, Invalid=4711, Unknown=0, NotChecked=0, Total=5402 [2021-02-23 23:05:46,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-02-23 23:05:46,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 158. [2021-02-23 23:05:46,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2021-02-23 23:05:46,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 159 transitions. [2021-02-23 23:05:46,522 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 159 transitions. Word has length 151 [2021-02-23 23:05:46,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:05:46,522 INFO L480 AbstractCegarLoop]: Abstraction has 158 states and 159 transitions. [2021-02-23 23:05:46,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has 34 states. [2021-02-23 23:05:46,522 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 159 transitions. [2021-02-23 23:05:46,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-02-23 23:05:46,524 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:05:46,524 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:05:46,525 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-23 23:05:46,525 INFO L428 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:05:46,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:05:46,525 INFO L82 PathProgramCache]: Analyzing trace with hash 531364846, now seen corresponding path program 1 times [2021-02-23 23:05:46,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:05:46,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1634185727] [2021-02-23 23:05:46,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:05:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:47,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:47,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:47,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:47,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:47,132 WARN L141 QuantifierPusher]: treesize reduction 88, result has 3.3 percent of original size [2021-02-23 23:05:47,133 WARN L147 QuantifierPusher]: treesize reduction 88, result has 3.3 percent of original size 3 [2021-02-23 23:05:47,134 WARN L141 QuantifierPusher]: treesize reduction 78, result has 17.0 percent of original size [2021-02-23 23:05:47,135 WARN L147 QuantifierPusher]: treesize reduction 78, result has 17.0 percent of original size 16 [2021-02-23 23:05:47,145 WARN L141 QuantifierPusher]: treesize reduction 78, result has 17.0 percent of original size [2021-02-23 23:05:47,146 WARN L147 QuantifierPusher]: treesize reduction 78, result has 17.0 percent of original size 16 [2021-02-23 23:05:47,159 WARN L141 QuantifierPusher]: treesize reduction 127, result has 18.1 percent of original size [2021-02-23 23:05:47,159 WARN L147 QuantifierPusher]: treesize reduction 127, result has 18.1 percent of original size 28 [2021-02-23 23:05:47,181 WARN L141 QuantifierPusher]: treesize reduction 127, result has 18.1 percent of original size [2021-02-23 23:05:47,182 WARN L147 QuantifierPusher]: treesize reduction 127, result has 18.1 percent of original size 28 [2021-02-23 23:05:47,206 WARN L141 QuantifierPusher]: treesize reduction 248, result has 26.8 percent of original size [2021-02-23 23:05:47,210 WARN L147 QuantifierPusher]: treesize reduction 248, result has 26.8 percent of original size 91 [2021-02-23 23:05:47,259 WARN L141 QuantifierPusher]: treesize reduction 95, result has 33.6 percent of original size [2021-02-23 23:05:47,260 WARN L147 QuantifierPusher]: treesize reduction 95, result has 33.6 percent of original size 48 [2021-02-23 23:05:47,303 WARN L141 QuantifierPusher]: treesize reduction 127, result has 34.5 percent of original size [2021-02-23 23:05:47,304 WARN L147 QuantifierPusher]: treesize reduction 127, result has 34.5 percent of original size 67 [2021-02-23 23:05:47,355 WARN L141 QuantifierPusher]: treesize reduction 74, result has 27.5 percent of original size [2021-02-23 23:05:47,356 WARN L147 QuantifierPusher]: treesize reduction 74, result has 27.5 percent of original size 28 [2021-02-23 23:05:47,390 WARN L141 QuantifierPusher]: treesize reduction 74, result has 27.5 percent of original size [2021-02-23 23:05:47,392 WARN L147 QuantifierPusher]: treesize reduction 74, result has 27.5 percent of original size 28 [2021-02-23 23:05:47,432 WARN L141 QuantifierPusher]: treesize reduction 74, result has 27.5 percent of original size [2021-02-23 23:05:47,434 WARN L147 QuantifierPusher]: treesize reduction 74, result has 27.5 percent of original size 28 [2021-02-23 23:05:47,473 WARN L141 QuantifierPusher]: treesize reduction 81, result has 35.2 percent of original size [2021-02-23 23:05:47,475 WARN L147 QuantifierPusher]: treesize reduction 81, result has 35.2 percent of original size 44 [2021-02-23 23:05:47,535 WARN L141 QuantifierPusher]: treesize reduction 74, result has 27.5 percent of original size [2021-02-23 23:05:47,535 WARN L147 QuantifierPusher]: treesize reduction 74, result has 27.5 percent of original size 28 [2021-02-23 23:05:47,581 WARN L141 QuantifierPusher]: treesize reduction 74, result has 27.5 percent of original size [2021-02-23 23:05:47,582 WARN L147 QuantifierPusher]: treesize reduction 74, result has 27.5 percent of original size 28 [2021-02-23 23:05:47,624 WARN L141 QuantifierPusher]: treesize reduction 83, result has 16.2 percent of original size [2021-02-23 23:05:47,625 WARN L147 QuantifierPusher]: treesize reduction 83, result has 16.2 percent of original size 16 [2021-02-23 23:05:47,661 WARN L141 QuantifierPusher]: treesize reduction 87, result has 15.5 percent of original size [2021-02-23 23:05:47,662 WARN L147 QuantifierPusher]: treesize reduction 87, result has 15.5 percent of original size 16 [2021-02-23 23:05:47,702 WARN L141 QuantifierPusher]: treesize reduction 78, result has 17.0 percent of original size [2021-02-23 23:05:47,703 WARN L147 QuantifierPusher]: treesize reduction 78, result has 17.0 percent of original size 16 [2021-02-23 23:05:47,749 WARN L141 QuantifierPusher]: treesize reduction 78, result has 17.0 percent of original size [2021-02-23 23:05:47,753 WARN L147 QuantifierPusher]: treesize reduction 78, result has 17.0 percent of original size 16 [2021-02-23 23:05:47,790 WARN L141 QuantifierPusher]: treesize reduction 78, result has 17.0 percent of original size [2021-02-23 23:05:47,791 WARN L147 QuantifierPusher]: treesize reduction 78, result has 17.0 percent of original size 16 [2021-02-23 23:05:47,828 WARN L141 QuantifierPusher]: treesize reduction 78, result has 17.0 percent of original size [2021-02-23 23:05:47,830 WARN L147 QuantifierPusher]: treesize reduction 78, result has 17.0 percent of original size 16 [2021-02-23 23:05:47,869 WARN L141 QuantifierPusher]: treesize reduction 88, result has 3.3 percent of original size [2021-02-23 23:05:47,870 WARN L147 QuantifierPusher]: treesize reduction 88, result has 3.3 percent of original size 3 [2021-02-23 23:05:47,871 WARN L141 QuantifierPusher]: treesize reduction 88, result has 15.4 percent of original size [2021-02-23 23:05:47,872 WARN L147 QuantifierPusher]: treesize reduction 88, result has 15.4 percent of original size 16 [2021-02-23 23:05:47,914 WARN L141 QuantifierPusher]: treesize reduction 80, result has 52.1 percent of original size [2021-02-23 23:05:47,916 WARN L147 QuantifierPusher]: treesize reduction 80, result has 52.1 percent of original size 87 [2021-02-23 23:05:48,038 WARN L141 QuantifierPusher]: treesize reduction 247, result has 43.9 percent of original size [2021-02-23 23:05:48,041 WARN L147 QuantifierPusher]: treesize reduction 247, result has 43.9 percent of original size 193 [2021-02-23 23:05:48,271 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 34 [2021-02-23 23:05:48,281 WARN L141 QuantifierPusher]: treesize reduction 184, result has 65.9 percent of original size [2021-02-23 23:05:48,285 WARN L147 QuantifierPusher]: treesize reduction 184, result has 65.9 percent of original size 355 [2021-02-23 23:05:48,593 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 41 [2021-02-23 23:05:48,604 WARN L141 QuantifierPusher]: treesize reduction 183, result has 70.7 percent of original size [2021-02-23 23:05:48,612 WARN L147 QuantifierPusher]: treesize reduction 183, result has 70.7 percent of original size 442 [2021-02-23 23:05:49,067 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 55 [2021-02-23 23:05:49,075 WARN L141 QuantifierPusher]: treesize reduction 164, result has 66.9 percent of original size [2021-02-23 23:05:49,081 WARN L147 QuantifierPusher]: treesize reduction 164, result has 66.9 percent of original size 332 [2021-02-23 23:05:49,388 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 50 [2021-02-23 23:05:49,396 WARN L141 QuantifierPusher]: treesize reduction 338, result has 45.5 percent of original size [2021-02-23 23:05:49,400 WARN L147 QuantifierPusher]: treesize reduction 338, result has 45.5 percent of original size 282 [2021-02-23 23:05:49,698 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 47 [2021-02-23 23:05:49,708 WARN L141 QuantifierPusher]: treesize reduction 77, result has 42.1 percent of original size [2021-02-23 23:05:49,709 WARN L147 QuantifierPusher]: treesize reduction 77, result has 42.1 percent of original size 56 [2021-02-23 23:05:49,769 WARN L141 QuantifierPusher]: treesize reduction 86, result has 38.1 percent of original size [2021-02-23 23:05:49,770 WARN L147 QuantifierPusher]: treesize reduction 86, result has 38.1 percent of original size 53 [2021-02-23 23:05:49,831 WARN L141 QuantifierPusher]: treesize reduction 35, result has 62.4 percent of original size [2021-02-23 23:05:49,834 WARN L147 QuantifierPusher]: treesize reduction 35, result has 62.4 percent of original size 58 [2021-02-23 23:05:49,901 WARN L141 QuantifierPusher]: treesize reduction 33, result has 71.8 percent of original size [2021-02-23 23:05:49,902 WARN L147 QuantifierPusher]: treesize reduction 33, result has 71.8 percent of original size 84 [2021-02-23 23:05:49,987 WARN L141 QuantifierPusher]: treesize reduction 33, result has 70.8 percent of original size [2021-02-23 23:05:49,988 WARN L147 QuantifierPusher]: treesize reduction 33, result has 70.8 percent of original size 80 [2021-02-23 23:05:50,059 WARN L141 QuantifierPusher]: treesize reduction 5, result has 86.1 percent of original size [2021-02-23 23:05:50,060 WARN L147 QuantifierPusher]: treesize reduction 5, result has 86.1 percent of original size 31 [2021-02-23 23:05:50,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:50,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 23:05:50,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:50,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:50,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:50,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:50,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:05:50,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:50,269 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:50,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:50,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-02-23 23:05:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:50,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:50,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:05:50,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:50,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 23:05:50,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:50,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-23 23:05:50,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:50,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 23:05:50,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:50,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 23:05:50,613 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 30 proven. 432 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:05:50,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1634185727] [2021-02-23 23:05:50,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:05:50,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2021-02-23 23:05:50,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051142843] [2021-02-23 23:05:50,614 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-02-23 23:05:50,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:05:50,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-02-23 23:05:50,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1676, Unknown=0, NotChecked=0, Total=1806 [2021-02-23 23:05:50,616 INFO L87 Difference]: Start difference. First operand 158 states and 159 transitions. Second operand 43 states. [2021-02-23 23:05:53,888 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 42 [2021-02-23 23:05:54,099 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 47 [2021-02-23 23:05:55,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:05:55,715 INFO L93 Difference]: Finished difference Result 174 states and 176 transitions. [2021-02-23 23:05:55,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-02-23 23:05:55,715 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 157 [2021-02-23 23:05:55,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:05:55,718 INFO L225 Difference]: With dead ends: 174 [2021-02-23 23:05:55,719 INFO L226 Difference]: Without dead ends: 167 [2021-02-23 23:05:55,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1894 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=511, Invalid=6971, Unknown=0, NotChecked=0, Total=7482 [2021-02-23 23:05:55,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-02-23 23:05:55,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 164. [2021-02-23 23:05:55,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2021-02-23 23:05:55,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 165 transitions. [2021-02-23 23:05:55,741 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 165 transitions. Word has length 157 [2021-02-23 23:05:55,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:05:55,742 INFO L480 AbstractCegarLoop]: Abstraction has 164 states and 165 transitions. [2021-02-23 23:05:55,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has 43 states. [2021-02-23 23:05:55,742 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 165 transitions. [2021-02-23 23:05:55,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-02-23 23:05:55,744 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:05:55,744 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:05:55,744 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-23 23:05:55,744 INFO L428 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:05:55,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:05:55,745 INFO L82 PathProgramCache]: Analyzing trace with hash -211421018, now seen corresponding path program 2 times [2021-02-23 23:05:55,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:05:55,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [547035030] [2021-02-23 23:05:55,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:05:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:56,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:56,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:56,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:56,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:05:56,490 WARN L141 QuantifierPusher]: treesize reduction 92, result has 3.2 percent of original size [2021-02-23 23:05:56,490 WARN L147 QuantifierPusher]: treesize reduction 92, result has 3.2 percent of original size 3 [2021-02-23 23:05:56,492 WARN L141 QuantifierPusher]: treesize reduction 77, result has 23.0 percent of original size [2021-02-23 23:05:56,492 WARN L147 QuantifierPusher]: treesize reduction 77, result has 23.0 percent of original size 23 [2021-02-23 23:05:56,504 WARN L141 QuantifierPusher]: treesize reduction 77, result has 23.0 percent of original size [2021-02-23 23:05:56,505 WARN L147 QuantifierPusher]: treesize reduction 77, result has 23.0 percent of original size 23 [2021-02-23 23:05:56,521 WARN L141 QuantifierPusher]: treesize reduction 160, result has 17.5 percent of original size [2021-02-23 23:05:56,522 WARN L147 QuantifierPusher]: treesize reduction 160, result has 17.5 percent of original size 34 [2021-02-23 23:05:56,558 WARN L141 QuantifierPusher]: treesize reduction 160, result has 17.5 percent of original size [2021-02-23 23:05:56,559 WARN L147 QuantifierPusher]: treesize reduction 160, result has 17.5 percent of original size 34 [2021-02-23 23:05:56,600 WARN L141 QuantifierPusher]: treesize reduction 306, result has 29.7 percent of original size [2021-02-23 23:05:56,602 WARN L147 QuantifierPusher]: treesize reduction 306, result has 29.7 percent of original size 129 [2021-02-23 23:05:56,676 WARN L141 QuantifierPusher]: treesize reduction 149, result has 37.9 percent of original size [2021-02-23 23:05:56,678 WARN L147 QuantifierPusher]: treesize reduction 149, result has 37.9 percent of original size 91 [2021-02-23 23:05:56,745 WARN L141 QuantifierPusher]: treesize reduction 167, result has 39.3 percent of original size [2021-02-23 23:05:56,746 WARN L147 QuantifierPusher]: treesize reduction 167, result has 39.3 percent of original size 108 [2021-02-23 23:05:56,815 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:05:56,815 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:05:56,841 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:05:56,842 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:05:56,868 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:05:56,869 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:05:56,899 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:05:56,900 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:05:56,928 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:05:56,929 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:05:56,962 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:05:56,963 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:05:56,999 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:05:56,999 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:05:57,037 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:05:57,037 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:05:57,077 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:05:57,077 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:05:57,118 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:05:57,119 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:05:57,161 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:05:57,163 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:05:57,201 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:05:57,201 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:05:57,237 WARN L141 QuantifierPusher]: treesize reduction 51, result has 5.6 percent of original size [2021-02-23 23:05:57,238 WARN L147 QuantifierPusher]: treesize reduction 51, result has 5.6 percent of original size 3 [2021-02-23 23:05:57,239 WARN L141 QuantifierPusher]: treesize reduction 51, result has 23.9 percent of original size [2021-02-23 23:05:57,240 WARN L147 QuantifierPusher]: treesize reduction 51, result has 23.9 percent of original size 16 [2021-02-23 23:05:57,302 WARN L141 QuantifierPusher]: treesize reduction 213, result has 30.4 percent of original size [2021-02-23 23:05:57,303 WARN L147 QuantifierPusher]: treesize reduction 213, result has 30.4 percent of original size 93 [2021-02-23 23:05:57,423 WARN L141 QuantifierPusher]: treesize reduction 593, result has 27.3 percent of original size [2021-02-23 23:05:57,427 WARN L147 QuantifierPusher]: treesize reduction 593, result has 27.3 percent of original size 223 [2021-02-23 23:05:57,608 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 27 [2021-02-23 23:05:57,620 WARN L141 QuantifierPusher]: treesize reduction 870, result has 38.1 percent of original size [2021-02-23 23:05:57,626 WARN L147 QuantifierPusher]: treesize reduction 870, result has 38.1 percent of original size 535 [2021-02-23 23:05:57,891 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 30 [2021-02-23 23:05:57,911 WARN L141 QuantifierPusher]: treesize reduction 991, result has 34.4 percent of original size [2021-02-23 23:05:57,917 WARN L147 QuantifierPusher]: treesize reduction 991, result has 34.4 percent of original size 520 [2021-02-23 23:05:58,236 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 24 [2021-02-23 23:05:58,246 WARN L141 QuantifierPusher]: treesize reduction 502, result has 40.3 percent of original size [2021-02-23 23:05:58,250 WARN L147 QuantifierPusher]: treesize reduction 502, result has 40.3 percent of original size 339 [2021-02-23 23:05:58,455 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 34 [2021-02-23 23:05:58,480 WARN L141 QuantifierPusher]: treesize reduction 1851, result has 13.2 percent of original size [2021-02-23 23:05:58,483 WARN L147 QuantifierPusher]: treesize reduction 1851, result has 13.2 percent of original size 282 [2021-02-23 23:05:58,664 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 31 [2021-02-23 23:05:58,668 WARN L141 QuantifierPusher]: treesize reduction 76, result has 34.5 percent of original size [2021-02-23 23:05:58,669 WARN L147 QuantifierPusher]: treesize reduction 76, result has 34.5 percent of original size 40 [2021-02-23 23:05:58,715 WARN L141 QuantifierPusher]: treesize reduction 85, result has 30.3 percent of original size [2021-02-23 23:05:58,716 WARN L147 QuantifierPusher]: treesize reduction 85, result has 30.3 percent of original size 37 [2021-02-23 23:05:58,764 WARN L141 QuantifierPusher]: treesize reduction 39, result has 51.2 percent of original size [2021-02-23 23:05:58,765 WARN L147 QuantifierPusher]: treesize reduction 39, result has 51.2 percent of original size 41 [2021-02-23 23:05:58,820 WARN L141 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-02-23 23:05:58,821 WARN L147 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size 37 [2021-02-23 23:05:58,823 WARN L141 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size [2021-02-23 23:05:58,824 WARN L147 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size 42 [2021-02-23 23:05:58,872 WARN L141 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-02-23 23:05:58,873 WARN L147 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size 37 [2021-02-23 23:05:58,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:58,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:05:58,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:58,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:59,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:05:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:59,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:59,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:59,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-23 23:05:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:59,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:59,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:59,192 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 150 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:05:59,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [547035030] [2021-02-23 23:05:59,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:05:59,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2021-02-23 23:05:59,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100355389] [2021-02-23 23:05:59,194 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-02-23 23:05:59,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:05:59,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-02-23 23:05:59,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=1117, Unknown=0, NotChecked=0, Total=1260 [2021-02-23 23:05:59,195 INFO L87 Difference]: Start difference. First operand 164 states and 165 transitions. Second operand 36 states. [2021-02-23 23:06:02,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:06:02,220 INFO L93 Difference]: Finished difference Result 189 states and 190 transitions. [2021-02-23 23:06:02,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-02-23 23:06:02,221 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 163 [2021-02-23 23:06:02,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:06:02,226 INFO L225 Difference]: With dead ends: 189 [2021-02-23 23:06:02,227 INFO L226 Difference]: Without dead ends: 173 [2021-02-23 23:06:02,230 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1189 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=539, Invalid=4291, Unknown=0, NotChecked=0, Total=4830 [2021-02-23 23:06:02,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-02-23 23:06:02,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 170. [2021-02-23 23:06:02,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2021-02-23 23:06:02,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 171 transitions. [2021-02-23 23:06:02,248 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 171 transitions. Word has length 163 [2021-02-23 23:06:02,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:06:02,249 INFO L480 AbstractCegarLoop]: Abstraction has 170 states and 171 transitions. [2021-02-23 23:06:02,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has 36 states. [2021-02-23 23:06:02,249 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 171 transitions. [2021-02-23 23:06:02,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-02-23 23:06:02,250 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:06:02,250 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:06:02,250 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-23 23:06:02,250 INFO L428 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:06:02,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:06:02,251 INFO L82 PathProgramCache]: Analyzing trace with hash 2984798, now seen corresponding path program 3 times [2021-02-23 23:06:02,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:06:02,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1575707138] [2021-02-23 23:06:02,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:06:02,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:06:02,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:02,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:02,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:02,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:02,949 WARN L141 QuantifierPusher]: treesize reduction 92, result has 3.2 percent of original size [2021-02-23 23:06:02,949 WARN L147 QuantifierPusher]: treesize reduction 92, result has 3.2 percent of original size 3 [2021-02-23 23:06:02,950 WARN L141 QuantifierPusher]: treesize reduction 77, result has 23.0 percent of original size [2021-02-23 23:06:02,951 WARN L147 QuantifierPusher]: treesize reduction 77, result has 23.0 percent of original size 23 [2021-02-23 23:06:02,963 WARN L141 QuantifierPusher]: treesize reduction 77, result has 23.0 percent of original size [2021-02-23 23:06:02,963 WARN L147 QuantifierPusher]: treesize reduction 77, result has 23.0 percent of original size 23 [2021-02-23 23:06:02,978 WARN L141 QuantifierPusher]: treesize reduction 160, result has 17.5 percent of original size [2021-02-23 23:06:02,979 WARN L147 QuantifierPusher]: treesize reduction 160, result has 17.5 percent of original size 34 [2021-02-23 23:06:03,015 WARN L141 QuantifierPusher]: treesize reduction 160, result has 17.5 percent of original size [2021-02-23 23:06:03,016 WARN L147 QuantifierPusher]: treesize reduction 160, result has 17.5 percent of original size 34 [2021-02-23 23:06:03,060 WARN L141 QuantifierPusher]: treesize reduction 306, result has 29.7 percent of original size [2021-02-23 23:06:03,091 WARN L147 QuantifierPusher]: treesize reduction 306, result has 29.7 percent of original size 129 [2021-02-23 23:06:03,162 WARN L141 QuantifierPusher]: treesize reduction 149, result has 37.9 percent of original size [2021-02-23 23:06:03,164 WARN L147 QuantifierPusher]: treesize reduction 149, result has 37.9 percent of original size 91 [2021-02-23 23:06:03,235 WARN L141 QuantifierPusher]: treesize reduction 167, result has 39.3 percent of original size [2021-02-23 23:06:03,236 WARN L147 QuantifierPusher]: treesize reduction 167, result has 39.3 percent of original size 108 [2021-02-23 23:06:03,312 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:06:03,313 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:06:03,343 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:06:03,344 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:06:03,374 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:06:03,375 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:06:03,408 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:06:03,408 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:06:03,445 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:06:03,446 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:06:03,484 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:06:03,484 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:06:03,519 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:06:03,520 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:06:03,554 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:06:03,555 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:06:03,591 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:06:03,592 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:06:03,631 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:06:03,631 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:06:03,669 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:06:03,670 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:06:03,713 WARN L141 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size [2021-02-23 23:06:03,714 WARN L147 QuantifierPusher]: treesize reduction 44, result has 34.3 percent of original size 23 [2021-02-23 23:06:03,754 WARN L141 QuantifierPusher]: treesize reduction 51, result has 5.6 percent of original size [2021-02-23 23:06:03,755 WARN L147 QuantifierPusher]: treesize reduction 51, result has 5.6 percent of original size 3 [2021-02-23 23:06:03,756 WARN L141 QuantifierPusher]: treesize reduction 51, result has 23.9 percent of original size [2021-02-23 23:06:03,756 WARN L147 QuantifierPusher]: treesize reduction 51, result has 23.9 percent of original size 16 [2021-02-23 23:06:03,796 WARN L141 QuantifierPusher]: treesize reduction 245, result has 27.1 percent of original size [2021-02-23 23:06:03,797 WARN L147 QuantifierPusher]: treesize reduction 245, result has 27.1 percent of original size 91 [2021-02-23 23:06:03,887 WARN L141 QuantifierPusher]: treesize reduction 600, result has 28.5 percent of original size [2021-02-23 23:06:03,889 WARN L147 QuantifierPusher]: treesize reduction 600, result has 28.5 percent of original size 239 [2021-02-23 23:06:04,080 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 28 [2021-02-23 23:06:04,097 WARN L141 QuantifierPusher]: treesize reduction 890, result has 37.7 percent of original size [2021-02-23 23:06:04,102 WARN L147 QuantifierPusher]: treesize reduction 890, result has 37.7 percent of original size 538 [2021-02-23 23:06:04,413 WARN L202 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 31 [2021-02-23 23:06:04,432 WARN L141 QuantifierPusher]: treesize reduction 1017, result has 33.7 percent of original size [2021-02-23 23:06:04,437 WARN L147 QuantifierPusher]: treesize reduction 1017, result has 33.7 percent of original size 516 [2021-02-23 23:06:04,801 WARN L202 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 25 [2021-02-23 23:06:04,813 WARN L141 QuantifierPusher]: treesize reduction 511, result has 40.2 percent of original size [2021-02-23 23:06:04,818 WARN L147 QuantifierPusher]: treesize reduction 511, result has 40.2 percent of original size 343 [2021-02-23 23:06:05,087 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 34 [2021-02-23 23:06:05,112 WARN L141 QuantifierPusher]: treesize reduction 2416, result has 12.2 percent of original size [2021-02-23 23:06:05,116 WARN L147 QuantifierPusher]: treesize reduction 2416, result has 12.2 percent of original size 337 [2021-02-23 23:06:05,319 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 31 [2021-02-23 23:06:05,322 WARN L141 QuantifierPusher]: treesize reduction 76, result has 34.5 percent of original size [2021-02-23 23:06:05,323 WARN L147 QuantifierPusher]: treesize reduction 76, result has 34.5 percent of original size 40 [2021-02-23 23:06:05,373 WARN L141 QuantifierPusher]: treesize reduction 85, result has 30.3 percent of original size [2021-02-23 23:06:05,374 WARN L147 QuantifierPusher]: treesize reduction 85, result has 30.3 percent of original size 37 [2021-02-23 23:06:05,419 WARN L141 QuantifierPusher]: treesize reduction 39, result has 51.2 percent of original size [2021-02-23 23:06:05,420 WARN L147 QuantifierPusher]: treesize reduction 39, result has 51.2 percent of original size 41 [2021-02-23 23:06:05,476 WARN L141 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-02-23 23:06:05,480 WARN L147 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size 37 [2021-02-23 23:06:05,481 WARN L141 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size [2021-02-23 23:06:05,482 WARN L147 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size 42 [2021-02-23 23:06:05,532 WARN L141 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-02-23 23:06:05,533 WARN L147 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size 37 [2021-02-23 23:06:05,585 WARN L141 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size [2021-02-23 23:06:05,589 WARN L147 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size 42 [2021-02-23 23:06:05,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:05,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:06:05,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:05,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:05,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:06:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:06:05,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:05,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:05,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-02-23 23:06:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:06:05,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:05,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:05,905 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 150 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:06:05,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1575707138] [2021-02-23 23:06:05,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:06:05,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2021-02-23 23:06:05,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19215927] [2021-02-23 23:06:05,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-02-23 23:06:05,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:06:05,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-02-23 23:06:05,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=1183, Unknown=0, NotChecked=0, Total=1332 [2021-02-23 23:06:05,908 INFO L87 Difference]: Start difference. First operand 170 states and 171 transitions. Second operand 37 states. [2021-02-23 23:06:09,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:06:09,083 INFO L93 Difference]: Finished difference Result 195 states and 196 transitions. [2021-02-23 23:06:09,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-02-23 23:06:09,084 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 169 [2021-02-23 23:06:09,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:06:09,086 INFO L225 Difference]: With dead ends: 195 [2021-02-23 23:06:09,086 INFO L226 Difference]: Without dead ends: 179 [2021-02-23 23:06:09,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1325 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=572, Invalid=4684, Unknown=0, NotChecked=0, Total=5256 [2021-02-23 23:06:09,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-02-23 23:06:09,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 176. [2021-02-23 23:06:09,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2021-02-23 23:06:09,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 177 transitions. [2021-02-23 23:06:09,106 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 177 transitions. Word has length 169 [2021-02-23 23:06:09,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:06:09,107 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 177 transitions. [2021-02-23 23:06:09,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has 37 states. [2021-02-23 23:06:09,107 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 177 transitions. [2021-02-23 23:06:09,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-02-23 23:06:09,108 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:06:09,108 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:06:09,108 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-23 23:06:09,108 INFO L428 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:06:09,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:06:09,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1861891094, now seen corresponding path program 4 times [2021-02-23 23:06:09,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:06:09,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1483081064] [2021-02-23 23:06:09,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:06:09,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:06:09,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:09,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:09,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:09,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:09,677 WARN L141 QuantifierPusher]: treesize reduction 124, result has 2.4 percent of original size [2021-02-23 23:06:09,677 WARN L147 QuantifierPusher]: treesize reduction 124, result has 2.4 percent of original size 3 [2021-02-23 23:06:09,679 WARN L141 QuantifierPusher]: treesize reduction 123, result has 5.4 percent of original size [2021-02-23 23:06:09,679 WARN L147 QuantifierPusher]: treesize reduction 123, result has 5.4 percent of original size 7 [2021-02-23 23:06:09,686 WARN L141 QuantifierPusher]: treesize reduction 123, result has 5.4 percent of original size [2021-02-23 23:06:09,687 WARN L147 QuantifierPusher]: treesize reduction 123, result has 5.4 percent of original size 7 [2021-02-23 23:06:09,696 WARN L141 QuantifierPusher]: treesize reduction 146, result has 18.9 percent of original size [2021-02-23 23:06:09,697 WARN L147 QuantifierPusher]: treesize reduction 146, result has 18.9 percent of original size 34 [2021-02-23 23:06:09,760 WARN L141 QuantifierPusher]: treesize reduction 146, result has 18.9 percent of original size [2021-02-23 23:06:09,761 WARN L147 QuantifierPusher]: treesize reduction 146, result has 18.9 percent of original size 34 [2021-02-23 23:06:09,801 WARN L141 QuantifierPusher]: treesize reduction 215, result has 32.4 percent of original size [2021-02-23 23:06:09,802 WARN L147 QuantifierPusher]: treesize reduction 215, result has 32.4 percent of original size 103 [2021-02-23 23:06:09,861 WARN L141 QuantifierPusher]: treesize reduction 169, result has 26.8 percent of original size [2021-02-23 23:06:09,862 WARN L147 QuantifierPusher]: treesize reduction 169, result has 26.8 percent of original size 62 [2021-02-23 23:06:09,917 WARN L141 QuantifierPusher]: treesize reduction 287, result has 24.7 percent of original size [2021-02-23 23:06:09,918 WARN L147 QuantifierPusher]: treesize reduction 287, result has 24.7 percent of original size 94 [2021-02-23 23:06:09,981 WARN L141 QuantifierPusher]: treesize reduction 109, result has 31.9 percent of original size [2021-02-23 23:06:09,983 WARN L147 QuantifierPusher]: treesize reduction 109, result has 31.9 percent of original size 51 [2021-02-23 23:06:10,042 WARN L141 QuantifierPusher]: treesize reduction 109, result has 31.9 percent of original size [2021-02-23 23:06:10,043 WARN L147 QuantifierPusher]: treesize reduction 109, result has 31.9 percent of original size 51 [2021-02-23 23:06:10,109 WARN L141 QuantifierPusher]: treesize reduction 109, result has 31.9 percent of original size [2021-02-23 23:06:10,110 WARN L147 QuantifierPusher]: treesize reduction 109, result has 31.9 percent of original size 51 [2021-02-23 23:06:10,180 WARN L141 QuantifierPusher]: treesize reduction 109, result has 31.9 percent of original size [2021-02-23 23:06:10,181 WARN L147 QuantifierPusher]: treesize reduction 109, result has 31.9 percent of original size 51 [2021-02-23 23:06:10,249 WARN L141 QuantifierPusher]: treesize reduction 109, result has 31.9 percent of original size [2021-02-23 23:06:10,250 WARN L147 QuantifierPusher]: treesize reduction 109, result has 31.9 percent of original size 51 [2021-02-23 23:06:10,323 WARN L141 QuantifierPusher]: treesize reduction 136, result has 33.0 percent of original size [2021-02-23 23:06:10,324 WARN L147 QuantifierPusher]: treesize reduction 136, result has 33.0 percent of original size 67 [2021-02-23 23:06:10,412 WARN L141 QuantifierPusher]: treesize reduction 115, result has 38.8 percent of original size [2021-02-23 23:06:10,413 WARN L147 QuantifierPusher]: treesize reduction 115, result has 38.8 percent of original size 73 [2021-02-23 23:06:10,508 WARN L141 QuantifierPusher]: treesize reduction 198, result has 32.0 percent of original size [2021-02-23 23:06:10,509 WARN L147 QuantifierPusher]: treesize reduction 198, result has 32.0 percent of original size 93 [2021-02-23 23:06:10,626 WARN L141 QuantifierPusher]: treesize reduction 126, result has 17.1 percent of original size [2021-02-23 23:06:10,626 WARN L147 QuantifierPusher]: treesize reduction 126, result has 17.1 percent of original size 26 [2021-02-23 23:06:10,684 WARN L141 QuantifierPusher]: treesize reduction 126, result has 17.1 percent of original size [2021-02-23 23:06:10,685 WARN L147 QuantifierPusher]: treesize reduction 126, result has 17.1 percent of original size 26 [2021-02-23 23:06:10,744 WARN L141 QuantifierPusher]: treesize reduction 126, result has 17.1 percent of original size [2021-02-23 23:06:10,745 WARN L147 QuantifierPusher]: treesize reduction 126, result has 17.1 percent of original size 26 [2021-02-23 23:06:10,808 WARN L141 QuantifierPusher]: treesize reduction 126, result has 17.1 percent of original size [2021-02-23 23:06:10,811 WARN L147 QuantifierPusher]: treesize reduction 126, result has 17.1 percent of original size 26 [2021-02-23 23:06:10,874 WARN L141 QuantifierPusher]: treesize reduction 146, result has 2.0 percent of original size [2021-02-23 23:06:10,875 WARN L147 QuantifierPusher]: treesize reduction 146, result has 2.0 percent of original size 3 [2021-02-23 23:06:10,877 WARN L141 QuantifierPusher]: treesize reduction 146, result has 9.9 percent of original size [2021-02-23 23:06:10,877 WARN L147 QuantifierPusher]: treesize reduction 146, result has 9.9 percent of original size 16 [2021-02-23 23:06:10,935 WARN L141 QuantifierPusher]: treesize reduction 267, result has 39.2 percent of original size [2021-02-23 23:06:10,936 WARN L147 QuantifierPusher]: treesize reduction 267, result has 39.2 percent of original size 172 [2021-02-23 23:06:11,115 WARN L141 QuantifierPusher]: treesize reduction 328, result has 48.1 percent of original size [2021-02-23 23:06:11,117 WARN L147 QuantifierPusher]: treesize reduction 328, result has 48.1 percent of original size 304 [2021-02-23 23:06:11,391 WARN L202 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 31 [2021-02-23 23:06:11,397 WARN L141 QuantifierPusher]: treesize reduction 308, result has 46.9 percent of original size [2021-02-23 23:06:11,399 WARN L147 QuantifierPusher]: treesize reduction 308, result has 46.9 percent of original size 272 [2021-02-23 23:06:11,716 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 40 [2021-02-23 23:06:11,724 WARN L141 QuantifierPusher]: treesize reduction 231, result has 64.2 percent of original size [2021-02-23 23:06:11,749 WARN L147 QuantifierPusher]: treesize reduction 231, result has 64.2 percent of original size 415 [2021-02-23 23:06:12,148 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 61 [2021-02-23 23:06:12,156 WARN L141 QuantifierPusher]: treesize reduction 196, result has 61.2 percent of original size [2021-02-23 23:06:12,159 WARN L147 QuantifierPusher]: treesize reduction 196, result has 61.2 percent of original size 309 [2021-02-23 23:06:12,550 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 54 [2021-02-23 23:06:12,559 WARN L141 QuantifierPusher]: treesize reduction 599, result has 37.4 percent of original size [2021-02-23 23:06:12,562 WARN L147 QuantifierPusher]: treesize reduction 599, result has 37.4 percent of original size 358 [2021-02-23 23:06:12,890 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 50 [2021-02-23 23:06:12,893 WARN L141 QuantifierPusher]: treesize reduction 77, result has 42.1 percent of original size [2021-02-23 23:06:12,893 WARN L147 QuantifierPusher]: treesize reduction 77, result has 42.1 percent of original size 56 [2021-02-23 23:06:12,954 WARN L141 QuantifierPusher]: treesize reduction 86, result has 38.1 percent of original size [2021-02-23 23:06:12,955 WARN L147 QuantifierPusher]: treesize reduction 86, result has 38.1 percent of original size 53 [2021-02-23 23:06:13,013 WARN L141 QuantifierPusher]: treesize reduction 33, result has 67.6 percent of original size [2021-02-23 23:06:13,015 WARN L147 QuantifierPusher]: treesize reduction 33, result has 67.6 percent of original size 69 [2021-02-23 23:06:13,084 WARN L141 QuantifierPusher]: treesize reduction 39, result has 59.8 percent of original size [2021-02-23 23:06:13,085 WARN L147 QuantifierPusher]: treesize reduction 39, result has 59.8 percent of original size 58 [2021-02-23 23:06:13,131 WARN L141 QuantifierPusher]: treesize reduction 34, result has 64.9 percent of original size [2021-02-23 23:06:13,132 WARN L147 QuantifierPusher]: treesize reduction 34, result has 64.9 percent of original size 63 [2021-02-23 23:06:13,199 WARN L141 QuantifierPusher]: treesize reduction 39, result has 59.8 percent of original size [2021-02-23 23:06:13,200 WARN L147 QuantifierPusher]: treesize reduction 39, result has 59.8 percent of original size 58 [2021-02-23 23:06:13,266 WARN L141 QuantifierPusher]: treesize reduction 34, result has 64.9 percent of original size [2021-02-23 23:06:13,267 WARN L147 QuantifierPusher]: treesize reduction 34, result has 64.9 percent of original size 63 [2021-02-23 23:06:13,339 WARN L141 QuantifierPusher]: treesize reduction 24, result has 78.8 percent of original size [2021-02-23 23:06:13,340 WARN L147 QuantifierPusher]: treesize reduction 24, result has 78.8 percent of original size 89 [2021-02-23 23:06:13,457 WARN L141 QuantifierPusher]: treesize reduction 33, result has 71.8 percent of original size [2021-02-23 23:06:13,458 WARN L147 QuantifierPusher]: treesize reduction 33, result has 71.8 percent of original size 84 [2021-02-23 23:06:13,542 WARN L141 QuantifierPusher]: treesize reduction 33, result has 70.8 percent of original size [2021-02-23 23:06:13,543 WARN L147 QuantifierPusher]: treesize reduction 33, result has 70.8 percent of original size 80 [2021-02-23 23:06:13,633 WARN L141 QuantifierPusher]: treesize reduction 5, result has 86.1 percent of original size [2021-02-23 23:06:13,633 WARN L147 QuantifierPusher]: treesize reduction 5, result has 86.1 percent of original size 31 [2021-02-23 23:06:13,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:13,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 23:06:13,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:13,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:13,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:13,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:13,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:06:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:06:13,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:13,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:13,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-02-23 23:06:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:06:13,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:13,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:06:13,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:13,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 23:06:13,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:13,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-23 23:06:14,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:14,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 23:06:14,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:14,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 23:06:14,390 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 10 proven. 494 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:06:14,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1483081064] [2021-02-23 23:06:14,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:06:14,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2021-02-23 23:06:14,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354111073] [2021-02-23 23:06:14,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states [2021-02-23 23:06:14,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:06:14,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-02-23 23:06:14,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=2015, Unknown=0, NotChecked=0, Total=2162 [2021-02-23 23:06:14,397 INFO L87 Difference]: Start difference. First operand 176 states and 177 transitions. Second operand 47 states. [2021-02-23 23:06:18,573 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2021-02-23 23:06:18,868 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 55 [2021-02-23 23:06:19,078 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 46 [2021-02-23 23:06:21,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:06:21,946 INFO L93 Difference]: Finished difference Result 192 states and 194 transitions. [2021-02-23 23:06:21,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-02-23 23:06:21,947 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 175 [2021-02-23 23:06:21,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:06:21,949 INFO L225 Difference]: With dead ends: 192 [2021-02-23 23:06:21,950 INFO L226 Difference]: Without dead ends: 185 [2021-02-23 23:06:21,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2764 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=700, Invalid=9806, Unknown=0, NotChecked=0, Total=10506 [2021-02-23 23:06:21,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-02-23 23:06:21,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 182. [2021-02-23 23:06:21,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2021-02-23 23:06:21,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 183 transitions. [2021-02-23 23:06:21,976 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 183 transitions. Word has length 175 [2021-02-23 23:06:21,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:06:21,977 INFO L480 AbstractCegarLoop]: Abstraction has 182 states and 183 transitions. [2021-02-23 23:06:21,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2021-02-23 23:06:21,977 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 183 transitions. [2021-02-23 23:06:21,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-02-23 23:06:21,978 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:06:21,978 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:06:21,978 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-23 23:06:21,978 INFO L428 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:06:21,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:06:21,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1323076914, now seen corresponding path program 5 times [2021-02-23 23:06:21,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:06:21,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1462970323] [2021-02-23 23:06:21,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:06:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:06:22,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:22,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:22,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:22,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:22,550 WARN L141 QuantifierPusher]: treesize reduction 80, result has 12.1 percent of original size [2021-02-23 23:06:22,551 WARN L147 QuantifierPusher]: treesize reduction 80, result has 12.1 percent of original size 11 [2021-02-23 23:06:22,558 WARN L141 QuantifierPusher]: treesize reduction 69, result has 28.1 percent of original size [2021-02-23 23:06:22,559 WARN L147 QuantifierPusher]: treesize reduction 69, result has 28.1 percent of original size 27 [2021-02-23 23:06:22,583 WARN L141 QuantifierPusher]: treesize reduction 69, result has 28.1 percent of original size [2021-02-23 23:06:22,584 WARN L147 QuantifierPusher]: treesize reduction 69, result has 28.1 percent of original size 27 [2021-02-23 23:06:22,610 WARN L141 QuantifierPusher]: treesize reduction 75, result has 29.2 percent of original size [2021-02-23 23:06:22,611 WARN L147 QuantifierPusher]: treesize reduction 75, result has 29.2 percent of original size 31 [2021-02-23 23:06:22,645 WARN L141 QuantifierPusher]: treesize reduction 75, result has 29.2 percent of original size [2021-02-23 23:06:22,646 WARN L147 QuantifierPusher]: treesize reduction 75, result has 29.2 percent of original size 31 [2021-02-23 23:06:22,684 WARN L141 QuantifierPusher]: treesize reduction 135, result has 44.4 percent of original size [2021-02-23 23:06:22,685 WARN L147 QuantifierPusher]: treesize reduction 135, result has 44.4 percent of original size 108 [2021-02-23 23:06:22,759 WARN L141 QuantifierPusher]: treesize reduction 48, result has 52.9 percent of original size [2021-02-23 23:06:22,760 WARN L147 QuantifierPusher]: treesize reduction 48, result has 52.9 percent of original size 54 [2021-02-23 23:06:22,815 WARN L141 QuantifierPusher]: treesize reduction 67, result has 49.2 percent of original size [2021-02-23 23:06:22,816 WARN L147 QuantifierPusher]: treesize reduction 67, result has 49.2 percent of original size 65 [2021-02-23 23:06:22,890 WARN L141 QuantifierPusher]: treesize reduction 43, result has 38.6 percent of original size [2021-02-23 23:06:22,891 WARN L147 QuantifierPusher]: treesize reduction 43, result has 38.6 percent of original size 27 [2021-02-23 23:06:22,938 WARN L141 QuantifierPusher]: treesize reduction 65, result has 38.1 percent of original size [2021-02-23 23:06:22,939 WARN L147 QuantifierPusher]: treesize reduction 65, result has 38.1 percent of original size 40 [2021-02-23 23:06:22,993 WARN L141 QuantifierPusher]: treesize reduction 43, result has 38.6 percent of original size [2021-02-23 23:06:22,994 WARN L147 QuantifierPusher]: treesize reduction 43, result has 38.6 percent of original size 27 [2021-02-23 23:06:23,043 WARN L141 QuantifierPusher]: treesize reduction 65, result has 38.1 percent of original size [2021-02-23 23:06:23,045 WARN L147 QuantifierPusher]: treesize reduction 65, result has 38.1 percent of original size 40 [2021-02-23 23:06:23,103 WARN L141 QuantifierPusher]: treesize reduction 43, result has 38.6 percent of original size [2021-02-23 23:06:23,104 WARN L147 QuantifierPusher]: treesize reduction 43, result has 38.6 percent of original size 27 [2021-02-23 23:06:23,156 WARN L141 QuantifierPusher]: treesize reduction 62, result has 39.2 percent of original size [2021-02-23 23:06:23,157 WARN L147 QuantifierPusher]: treesize reduction 62, result has 39.2 percent of original size 40 [2021-02-23 23:06:23,219 WARN L141 QuantifierPusher]: treesize reduction 43, result has 38.6 percent of original size [2021-02-23 23:06:23,220 WARN L147 QuantifierPusher]: treesize reduction 43, result has 38.6 percent of original size 27 [2021-02-23 23:06:23,276 WARN L141 QuantifierPusher]: treesize reduction 43, result has 38.6 percent of original size [2021-02-23 23:06:23,277 WARN L147 QuantifierPusher]: treesize reduction 43, result has 38.6 percent of original size 27 [2021-02-23 23:06:23,332 WARN L141 QuantifierPusher]: treesize reduction 43, result has 38.6 percent of original size [2021-02-23 23:06:23,334 WARN L147 QuantifierPusher]: treesize reduction 43, result has 38.6 percent of original size 27 [2021-02-23 23:06:23,392 WARN L141 QuantifierPusher]: treesize reduction 65, result has 38.1 percent of original size [2021-02-23 23:06:23,394 WARN L147 QuantifierPusher]: treesize reduction 65, result has 38.1 percent of original size 40 [2021-02-23 23:06:23,465 WARN L141 QuantifierPusher]: treesize reduction 43, result has 38.6 percent of original size [2021-02-23 23:06:23,466 WARN L147 QuantifierPusher]: treesize reduction 43, result has 38.6 percent of original size 27 [2021-02-23 23:06:23,526 WARN L141 QuantifierPusher]: treesize reduction 43, result has 38.6 percent of original size [2021-02-23 23:06:23,527 WARN L147 QuantifierPusher]: treesize reduction 43, result has 38.6 percent of original size 27 [2021-02-23 23:06:23,588 WARN L141 QuantifierPusher]: treesize reduction 43, result has 20.4 percent of original size [2021-02-23 23:06:23,589 WARN L147 QuantifierPusher]: treesize reduction 43, result has 20.4 percent of original size 11 [2021-02-23 23:06:23,590 WARN L141 QuantifierPusher]: treesize reduction 44, result has 35.3 percent of original size [2021-02-23 23:06:23,590 WARN L147 QuantifierPusher]: treesize reduction 44, result has 35.3 percent of original size 24 [2021-02-23 23:06:23,645 WARN L141 QuantifierPusher]: treesize reduction 209, result has 30.3 percent of original size [2021-02-23 23:06:23,646 WARN L147 QuantifierPusher]: treesize reduction 209, result has 30.3 percent of original size 91 [2021-02-23 23:06:23,744 WARN L141 QuantifierPusher]: treesize reduction 281, result has 40.3 percent of original size [2021-02-23 23:06:23,746 WARN L147 QuantifierPusher]: treesize reduction 281, result has 40.3 percent of original size 190 [2021-02-23 23:06:23,937 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 36 [2021-02-23 23:06:23,943 WARN L141 QuantifierPusher]: treesize reduction 185, result has 67.2 percent of original size [2021-02-23 23:06:23,945 WARN L147 QuantifierPusher]: treesize reduction 185, result has 67.2 percent of original size 379 [2021-02-23 23:06:24,234 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 43 [2021-02-23 23:06:24,244 WARN L141 QuantifierPusher]: treesize reduction 213, result has 64.6 percent of original size [2021-02-23 23:06:24,251 WARN L147 QuantifierPusher]: treesize reduction 213, result has 64.6 percent of original size 389 [2021-02-23 23:06:24,665 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 41 [2021-02-23 23:06:24,675 WARN L141 QuantifierPusher]: treesize reduction 147, result has 70.2 percent of original size [2021-02-23 23:06:24,679 WARN L147 QuantifierPusher]: treesize reduction 147, result has 70.2 percent of original size 347 [2021-02-23 23:06:24,986 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 40 [2021-02-23 23:06:24,994 WARN L141 QuantifierPusher]: treesize reduction 348, result has 46.2 percent of original size [2021-02-23 23:06:24,996 WARN L147 QuantifierPusher]: treesize reduction 348, result has 46.2 percent of original size 299 [2021-02-23 23:06:25,223 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 33 [2021-02-23 23:06:25,227 WARN L141 QuantifierPusher]: treesize reduction 189, result has 21.3 percent of original size [2021-02-23 23:06:25,227 WARN L147 QuantifierPusher]: treesize reduction 189, result has 21.3 percent of original size 51 [2021-02-23 23:06:25,285 WARN L141 QuantifierPusher]: treesize reduction 211, result has 14.9 percent of original size [2021-02-23 23:06:25,286 WARN L147 QuantifierPusher]: treesize reduction 211, result has 14.9 percent of original size 37 [2021-02-23 23:06:25,337 WARN L141 QuantifierPusher]: treesize reduction 109, result has 27.3 percent of original size [2021-02-23 23:06:25,338 WARN L147 QuantifierPusher]: treesize reduction 109, result has 27.3 percent of original size 41 [2021-02-23 23:06:25,397 WARN L141 QuantifierPusher]: treesize reduction 113, result has 24.7 percent of original size [2021-02-23 23:06:25,398 WARN L147 QuantifierPusher]: treesize reduction 113, result has 24.7 percent of original size 37 [2021-02-23 23:06:25,400 WARN L141 QuantifierPusher]: treesize reduction 108, result has 28.0 percent of original size [2021-02-23 23:06:25,401 WARN L147 QuantifierPusher]: treesize reduction 108, result has 28.0 percent of original size 42 [2021-02-23 23:06:25,458 WARN L141 QuantifierPusher]: treesize reduction 113, result has 24.7 percent of original size [2021-02-23 23:06:25,459 WARN L147 QuantifierPusher]: treesize reduction 113, result has 24.7 percent of original size 37 [2021-02-23 23:06:25,514 WARN L141 QuantifierPusher]: treesize reduction 108, result has 28.0 percent of original size [2021-02-23 23:06:25,515 WARN L147 QuantifierPusher]: treesize reduction 108, result has 28.0 percent of original size 42 [2021-02-23 23:06:25,575 WARN L141 QuantifierPusher]: treesize reduction 108, result has 28.0 percent of original size [2021-02-23 23:06:25,578 WARN L147 QuantifierPusher]: treesize reduction 108, result has 28.0 percent of original size 42 [2021-02-23 23:06:25,635 WARN L141 QuantifierPusher]: treesize reduction 108, result has 28.0 percent of original size [2021-02-23 23:06:25,635 WARN L147 QuantifierPusher]: treesize reduction 108, result has 28.0 percent of original size 42 [2021-02-23 23:06:25,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:25,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:06:25,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:25,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:25,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:06:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:06:25,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:25,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:25,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-02-23 23:06:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:06:25,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:25,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:26,007 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 150 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:06:26,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1462970323] [2021-02-23 23:06:26,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:06:26,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2021-02-23 23:06:26,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871609266] [2021-02-23 23:06:26,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-02-23 23:06:26,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:06:26,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-02-23 23:06:26,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1393, Unknown=0, NotChecked=0, Total=1560 [2021-02-23 23:06:26,010 INFO L87 Difference]: Start difference. First operand 182 states and 183 transitions. Second operand 40 states. [2021-02-23 23:06:29,752 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 39 [2021-02-23 23:06:30,054 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 42 [2021-02-23 23:06:30,269 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 47 [2021-02-23 23:06:30,455 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 39 [2021-02-23 23:06:31,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:06:31,158 INFO L93 Difference]: Finished difference Result 207 states and 208 transitions. [2021-02-23 23:06:31,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-02-23 23:06:31,159 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 181 [2021-02-23 23:06:31,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:06:31,161 INFO L225 Difference]: With dead ends: 207 [2021-02-23 23:06:31,161 INFO L226 Difference]: Without dead ends: 191 [2021-02-23 23:06:31,165 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2170 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=876, Invalid=7134, Unknown=0, NotChecked=0, Total=8010 [2021-02-23 23:06:31,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-02-23 23:06:31,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 188. [2021-02-23 23:06:31,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2021-02-23 23:06:31,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 189 transitions. [2021-02-23 23:06:31,186 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 189 transitions. Word has length 181 [2021-02-23 23:06:31,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:06:31,187 INFO L480 AbstractCegarLoop]: Abstraction has 188 states and 189 transitions. [2021-02-23 23:06:31,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2021-02-23 23:06:31,187 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 189 transitions. [2021-02-23 23:06:31,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-02-23 23:06:31,188 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:06:31,189 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:06:31,189 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-02-23 23:06:31,189 INFO L428 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:06:31,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:06:31,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1201617018, now seen corresponding path program 6 times [2021-02-23 23:06:31,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:06:31,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804321007] [2021-02-23 23:06:31,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:06:31,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:06:31,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:31,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:31,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:31,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:31,860 WARN L141 QuantifierPusher]: treesize reduction 92, result has 3.2 percent of original size [2021-02-23 23:06:31,860 WARN L147 QuantifierPusher]: treesize reduction 92, result has 3.2 percent of original size 3 [2021-02-23 23:06:31,861 WARN L141 QuantifierPusher]: treesize reduction 91, result has 7.1 percent of original size [2021-02-23 23:06:31,862 WARN L147 QuantifierPusher]: treesize reduction 91, result has 7.1 percent of original size 7 [2021-02-23 23:06:31,872 WARN L141 QuantifierPusher]: treesize reduction 91, result has 7.1 percent of original size [2021-02-23 23:06:31,873 WARN L147 QuantifierPusher]: treesize reduction 91, result has 7.1 percent of original size 7 [2021-02-23 23:06:31,887 WARN L141 QuantifierPusher]: treesize reduction 165, result has 16.2 percent of original size [2021-02-23 23:06:31,888 WARN L147 QuantifierPusher]: treesize reduction 165, result has 16.2 percent of original size 32 [2021-02-23 23:06:31,926 WARN L141 QuantifierPusher]: treesize reduction 165, result has 16.2 percent of original size [2021-02-23 23:06:31,926 WARN L147 QuantifierPusher]: treesize reduction 165, result has 16.2 percent of original size 32 [2021-02-23 23:06:31,960 WARN L141 QuantifierPusher]: treesize reduction 309, result has 29.8 percent of original size [2021-02-23 23:06:31,962 WARN L147 QuantifierPusher]: treesize reduction 309, result has 29.8 percent of original size 131 [2021-02-23 23:06:32,036 WARN L141 QuantifierPusher]: treesize reduction 154, result has 36.6 percent of original size [2021-02-23 23:06:32,037 WARN L147 QuantifierPusher]: treesize reduction 154, result has 36.6 percent of original size 89 [2021-02-23 23:06:32,090 WARN L141 QuantifierPusher]: treesize reduction 172, result has 38.1 percent of original size [2021-02-23 23:06:32,091 WARN L147 QuantifierPusher]: treesize reduction 172, result has 38.1 percent of original size 106 [2021-02-23 23:06:32,151 WARN L141 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size [2021-02-23 23:06:32,151 WARN L147 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size 7 [2021-02-23 23:06:32,169 WARN L141 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size [2021-02-23 23:06:32,170 WARN L147 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size 7 [2021-02-23 23:06:32,188 WARN L141 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size [2021-02-23 23:06:32,188 WARN L147 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size 7 [2021-02-23 23:06:32,208 WARN L141 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size [2021-02-23 23:06:32,209 WARN L147 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size 7 [2021-02-23 23:06:32,229 WARN L141 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size [2021-02-23 23:06:32,229 WARN L147 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size 7 [2021-02-23 23:06:32,251 WARN L141 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size [2021-02-23 23:06:32,251 WARN L147 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size 7 [2021-02-23 23:06:32,272 WARN L141 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size [2021-02-23 23:06:32,273 WARN L147 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size 7 [2021-02-23 23:06:32,295 WARN L141 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size [2021-02-23 23:06:32,295 WARN L147 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size 7 [2021-02-23 23:06:32,319 WARN L141 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size [2021-02-23 23:06:32,319 WARN L147 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size 7 [2021-02-23 23:06:32,344 WARN L141 QuantifierPusher]: treesize reduction 71, result has 32.4 percent of original size [2021-02-23 23:06:32,344 WARN L147 QuantifierPusher]: treesize reduction 71, result has 32.4 percent of original size 34 [2021-02-23 23:06:32,384 WARN L141 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size [2021-02-23 23:06:32,384 WARN L147 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size 7 [2021-02-23 23:06:32,415 WARN L141 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size [2021-02-23 23:06:32,415 WARN L147 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size 7 [2021-02-23 23:06:32,446 WARN L141 QuantifierPusher]: treesize reduction 51, result has 5.6 percent of original size [2021-02-23 23:06:32,447 WARN L147 QuantifierPusher]: treesize reduction 51, result has 5.6 percent of original size 3 [2021-02-23 23:06:32,448 WARN L141 QuantifierPusher]: treesize reduction 51, result has 23.9 percent of original size [2021-02-23 23:06:32,449 WARN L147 QuantifierPusher]: treesize reduction 51, result has 23.9 percent of original size 16 [2021-02-23 23:06:32,485 WARN L141 QuantifierPusher]: treesize reduction 245, result has 27.1 percent of original size [2021-02-23 23:06:32,486 WARN L147 QuantifierPusher]: treesize reduction 245, result has 27.1 percent of original size 91 [2021-02-23 23:06:32,567 WARN L141 QuantifierPusher]: treesize reduction 671, result has 20.8 percent of original size [2021-02-23 23:06:32,569 WARN L147 QuantifierPusher]: treesize reduction 671, result has 20.8 percent of original size 176 [2021-02-23 23:06:32,749 WARN L141 QuantifierPusher]: treesize reduction 890, result has 37.7 percent of original size [2021-02-23 23:06:32,753 WARN L147 QuantifierPusher]: treesize reduction 890, result has 37.7 percent of original size 538 [2021-02-23 23:06:33,052 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 31 [2021-02-23 23:06:33,063 WARN L141 QuantifierPusher]: treesize reduction 991, result has 35.4 percent of original size [2021-02-23 23:06:33,067 WARN L147 QuantifierPusher]: treesize reduction 991, result has 35.4 percent of original size 544 [2021-02-23 23:06:33,385 WARN L202 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 24 [2021-02-23 23:06:33,393 WARN L141 QuantifierPusher]: treesize reduction 511, result has 40.2 percent of original size [2021-02-23 23:06:33,397 WARN L147 QuantifierPusher]: treesize reduction 511, result has 40.2 percent of original size 343 [2021-02-23 23:06:33,656 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 34 [2021-02-23 23:06:33,678 WARN L141 QuantifierPusher]: treesize reduction 2416, result has 12.2 percent of original size [2021-02-23 23:06:33,682 WARN L147 QuantifierPusher]: treesize reduction 2416, result has 12.2 percent of original size 337 [2021-02-23 23:06:33,872 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 31 [2021-02-23 23:06:33,875 WARN L141 QuantifierPusher]: treesize reduction 76, result has 34.5 percent of original size [2021-02-23 23:06:33,875 WARN L147 QuantifierPusher]: treesize reduction 76, result has 34.5 percent of original size 40 [2021-02-23 23:06:33,917 WARN L141 QuantifierPusher]: treesize reduction 85, result has 30.3 percent of original size [2021-02-23 23:06:33,918 WARN L147 QuantifierPusher]: treesize reduction 85, result has 30.3 percent of original size 37 [2021-02-23 23:06:33,963 WARN L141 QuantifierPusher]: treesize reduction 39, result has 51.2 percent of original size [2021-02-23 23:06:33,964 WARN L147 QuantifierPusher]: treesize reduction 39, result has 51.2 percent of original size 41 [2021-02-23 23:06:34,020 WARN L141 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-02-23 23:06:34,021 WARN L147 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size 37 [2021-02-23 23:06:34,022 WARN L141 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size [2021-02-23 23:06:34,023 WARN L147 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size 42 [2021-02-23 23:06:34,074 WARN L141 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-02-23 23:06:34,075 WARN L147 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size 37 [2021-02-23 23:06:34,127 WARN L141 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size [2021-02-23 23:06:34,129 WARN L147 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size 42 [2021-02-23 23:06:34,185 WARN L141 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size [2021-02-23 23:06:34,187 WARN L147 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size 42 [2021-02-23 23:06:34,242 WARN L141 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size [2021-02-23 23:06:34,243 WARN L147 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size 42 [2021-02-23 23:06:34,303 WARN L141 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size [2021-02-23 23:06:34,304 WARN L147 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size 42 [2021-02-23 23:06:34,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:34,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:06:34,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:34,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:34,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:06:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:06:34,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:34,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:34,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-02-23 23:06:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:06:34,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:34,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:34,563 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 150 proven. 412 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:06:34,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804321007] [2021-02-23 23:06:34,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:06:34,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2021-02-23 23:06:34,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938490762] [2021-02-23 23:06:34,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-02-23 23:06:34,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:06:34,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-02-23 23:06:34,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1387, Unknown=0, NotChecked=0, Total=1560 [2021-02-23 23:06:34,566 INFO L87 Difference]: Start difference. First operand 188 states and 189 transitions. Second operand 40 states. [2021-02-23 23:06:37,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:06:37,664 INFO L93 Difference]: Finished difference Result 213 states and 214 transitions. [2021-02-23 23:06:37,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-02-23 23:06:37,665 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 187 [2021-02-23 23:06:37,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:06:37,667 INFO L225 Difference]: With dead ends: 213 [2021-02-23 23:06:37,667 INFO L226 Difference]: Without dead ends: 197 [2021-02-23 23:06:37,670 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1688 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=797, Invalid=5845, Unknown=0, NotChecked=0, Total=6642 [2021-02-23 23:06:37,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-02-23 23:06:37,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2021-02-23 23:06:37,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2021-02-23 23:06:37,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 195 transitions. [2021-02-23 23:06:37,689 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 195 transitions. Word has length 187 [2021-02-23 23:06:37,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:06:37,689 INFO L480 AbstractCegarLoop]: Abstraction has 194 states and 195 transitions. [2021-02-23 23:06:37,689 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2021-02-23 23:06:37,689 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 195 transitions. [2021-02-23 23:06:37,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-02-23 23:06:37,690 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:06:37,690 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:06:37,690 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-02-23 23:06:37,691 INFO L428 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:06:37,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:06:37,691 INFO L82 PathProgramCache]: Analyzing trace with hash 784970302, now seen corresponding path program 7 times [2021-02-23 23:06:37,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:06:37,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [514877620] [2021-02-23 23:06:37,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:06:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:06:38,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:38,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:38,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:38,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:38,283 WARN L141 QuantifierPusher]: treesize reduction 84, result has 11.6 percent of original size [2021-02-23 23:06:38,284 WARN L147 QuantifierPusher]: treesize reduction 84, result has 11.6 percent of original size 11 [2021-02-23 23:06:38,293 WARN L141 QuantifierPusher]: treesize reduction 76, result has 24.0 percent of original size [2021-02-23 23:06:38,293 WARN L147 QuantifierPusher]: treesize reduction 76, result has 24.0 percent of original size 24 [2021-02-23 23:06:38,309 WARN L141 QuantifierPusher]: treesize reduction 76, result has 24.0 percent of original size [2021-02-23 23:06:38,310 WARN L147 QuantifierPusher]: treesize reduction 76, result has 24.0 percent of original size 24 [2021-02-23 23:06:38,330 WARN L141 QuantifierPusher]: treesize reduction 159, result has 18.0 percent of original size [2021-02-23 23:06:38,330 WARN L147 QuantifierPusher]: treesize reduction 159, result has 18.0 percent of original size 35 [2021-02-23 23:06:38,379 WARN L141 QuantifierPusher]: treesize reduction 159, result has 18.0 percent of original size [2021-02-23 23:06:38,380 WARN L147 QuantifierPusher]: treesize reduction 159, result has 18.0 percent of original size 35 [2021-02-23 23:06:38,431 WARN L141 QuantifierPusher]: treesize reduction 305, result has 30.2 percent of original size [2021-02-23 23:06:38,433 WARN L147 QuantifierPusher]: treesize reduction 305, result has 30.2 percent of original size 132 [2021-02-23 23:06:38,556 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 21 [2021-02-23 23:06:38,559 WARN L141 QuantifierPusher]: treesize reduction 148, result has 38.3 percent of original size [2021-02-23 23:06:38,560 WARN L147 QuantifierPusher]: treesize reduction 148, result has 38.3 percent of original size 92 [2021-02-23 23:06:38,634 WARN L141 QuantifierPusher]: treesize reduction 166, result has 39.6 percent of original size [2021-02-23 23:06:38,636 WARN L147 QuantifierPusher]: treesize reduction 166, result has 39.6 percent of original size 109 [2021-02-23 23:06:38,716 WARN L141 QuantifierPusher]: treesize reduction 43, result has 35.8 percent of original size [2021-02-23 23:06:38,717 WARN L147 QuantifierPusher]: treesize reduction 43, result has 35.8 percent of original size 24 [2021-02-23 23:06:38,747 WARN L141 QuantifierPusher]: treesize reduction 43, result has 35.8 percent of original size [2021-02-23 23:06:38,748 WARN L147 QuantifierPusher]: treesize reduction 43, result has 35.8 percent of original size 24 [2021-02-23 23:06:38,781 WARN L141 QuantifierPusher]: treesize reduction 43, result has 35.8 percent of original size [2021-02-23 23:06:38,782 WARN L147 QuantifierPusher]: treesize reduction 43, result has 35.8 percent of original size 24 [2021-02-23 23:06:38,816 WARN L141 QuantifierPusher]: treesize reduction 43, result has 35.8 percent of original size [2021-02-23 23:06:38,816 WARN L147 QuantifierPusher]: treesize reduction 43, result has 35.8 percent of original size 24 [2021-02-23 23:06:38,849 WARN L141 QuantifierPusher]: treesize reduction 43, result has 35.8 percent of original size [2021-02-23 23:06:38,850 WARN L147 QuantifierPusher]: treesize reduction 43, result has 35.8 percent of original size 24 [2021-02-23 23:06:38,888 WARN L141 QuantifierPusher]: treesize reduction 43, result has 35.8 percent of original size [2021-02-23 23:06:38,889 WARN L147 QuantifierPusher]: treesize reduction 43, result has 35.8 percent of original size 24 [2021-02-23 23:06:38,927 WARN L141 QuantifierPusher]: treesize reduction 43, result has 35.8 percent of original size [2021-02-23 23:06:38,927 WARN L147 QuantifierPusher]: treesize reduction 43, result has 35.8 percent of original size 24 [2021-02-23 23:06:38,966 WARN L141 QuantifierPusher]: treesize reduction 43, result has 35.8 percent of original size [2021-02-23 23:06:38,967 WARN L147 QuantifierPusher]: treesize reduction 43, result has 35.8 percent of original size 24 [2021-02-23 23:06:39,014 WARN L141 QuantifierPusher]: treesize reduction 43, result has 35.8 percent of original size [2021-02-23 23:06:39,015 WARN L147 QuantifierPusher]: treesize reduction 43, result has 35.8 percent of original size 24 [2021-02-23 23:06:39,066 WARN L141 QuantifierPusher]: treesize reduction 65, result has 36.3 percent of original size [2021-02-23 23:06:39,068 WARN L147 QuantifierPusher]: treesize reduction 65, result has 36.3 percent of original size 37 [2021-02-23 23:06:39,149 WARN L141 QuantifierPusher]: treesize reduction 43, result has 35.8 percent of original size [2021-02-23 23:06:39,150 WARN L147 QuantifierPusher]: treesize reduction 43, result has 35.8 percent of original size 24 [2021-02-23 23:06:39,208 WARN L141 QuantifierPusher]: treesize reduction 43, result has 35.8 percent of original size [2021-02-23 23:06:39,209 WARN L147 QuantifierPusher]: treesize reduction 43, result has 35.8 percent of original size 24 [2021-02-23 23:06:39,263 WARN L141 QuantifierPusher]: treesize reduction 43, result has 20.4 percent of original size [2021-02-23 23:06:39,264 WARN L147 QuantifierPusher]: treesize reduction 43, result has 20.4 percent of original size 11 [2021-02-23 23:06:39,265 WARN L141 QuantifierPusher]: treesize reduction 44, result has 35.3 percent of original size [2021-02-23 23:06:39,265 WARN L147 QuantifierPusher]: treesize reduction 44, result has 35.3 percent of original size 24 [2021-02-23 23:06:39,321 WARN L141 QuantifierPusher]: treesize reduction 213, result has 29.9 percent of original size [2021-02-23 23:06:39,322 WARN L147 QuantifierPusher]: treesize reduction 213, result has 29.9 percent of original size 91 [2021-02-23 23:06:39,438 WARN L141 QuantifierPusher]: treesize reduction 619, result has 23.2 percent of original size [2021-02-23 23:06:39,440 WARN L147 QuantifierPusher]: treesize reduction 619, result has 23.2 percent of original size 187 [2021-02-23 23:06:39,620 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 37 [2021-02-23 23:06:39,631 WARN L141 QuantifierPusher]: treesize reduction 870, result has 38.1 percent of original size [2021-02-23 23:06:39,636 WARN L147 QuantifierPusher]: treesize reduction 870, result has 38.1 percent of original size 535 [2021-02-23 23:06:40,089 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 43 [2021-02-23 23:06:40,103 WARN L141 QuantifierPusher]: treesize reduction 1017, result has 32.6 percent of original size [2021-02-23 23:06:40,108 WARN L147 QuantifierPusher]: treesize reduction 1017, result has 32.6 percent of original size 492 [2021-02-23 23:06:40,522 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 37 [2021-02-23 23:06:40,530 WARN L141 QuantifierPusher]: treesize reduction 502, result has 40.3 percent of original size [2021-02-23 23:06:40,533 WARN L147 QuantifierPusher]: treesize reduction 502, result has 40.3 percent of original size 339 [2021-02-23 23:06:40,795 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 37 [2021-02-23 23:06:40,809 WARN L141 QuantifierPusher]: treesize reduction 1852, result has 13.2 percent of original size [2021-02-23 23:06:40,811 WARN L147 QuantifierPusher]: treesize reduction 1852, result has 13.2 percent of original size 281 [2021-02-23 23:06:41,028 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 33 [2021-02-23 23:06:41,031 WARN L141 QuantifierPusher]: treesize reduction 76, result has 34.5 percent of original size [2021-02-23 23:06:41,031 WARN L147 QuantifierPusher]: treesize reduction 76, result has 34.5 percent of original size 40 [2021-02-23 23:06:41,083 WARN L141 QuantifierPusher]: treesize reduction 85, result has 30.3 percent of original size [2021-02-23 23:06:41,084 WARN L147 QuantifierPusher]: treesize reduction 85, result has 30.3 percent of original size 37 [2021-02-23 23:06:41,136 WARN L141 QuantifierPusher]: treesize reduction 39, result has 51.2 percent of original size [2021-02-23 23:06:41,137 WARN L147 QuantifierPusher]: treesize reduction 39, result has 51.2 percent of original size 41 [2021-02-23 23:06:41,198 WARN L141 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-02-23 23:06:41,199 WARN L147 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size 37 [2021-02-23 23:06:41,201 WARN L141 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size [2021-02-23 23:06:41,201 WARN L147 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size 42 [2021-02-23 23:06:41,257 WARN L141 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-02-23 23:06:41,258 WARN L147 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size 37 [2021-02-23 23:06:41,315 WARN L141 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size [2021-02-23 23:06:41,319 WARN L147 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size 42 [2021-02-23 23:06:41,377 WARN L141 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size [2021-02-23 23:06:41,378 WARN L147 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size 42 [2021-02-23 23:06:41,442 WARN L141 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size [2021-02-23 23:06:41,443 WARN L147 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size 42 [2021-02-23 23:06:41,508 WARN L141 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size [2021-02-23 23:06:41,509 WARN L147 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size 42 [2021-02-23 23:06:41,579 WARN L141 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-02-23 23:06:41,580 WARN L147 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size 37 [2021-02-23 23:06:41,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:41,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:06:41,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:41,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:41,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:06:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:06:41,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:41,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:41,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-02-23 23:06:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:06:41,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:41,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:41,918 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 150 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:06:41,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [514877620] [2021-02-23 23:06:41,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:06:41,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2021-02-23 23:06:41,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387312718] [2021-02-23 23:06:41,919 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-02-23 23:06:41,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:06:41,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-02-23 23:06:41,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1536, Unknown=0, NotChecked=0, Total=1722 [2021-02-23 23:06:41,920 INFO L87 Difference]: Start difference. First operand 194 states and 195 transitions. Second operand 42 states. [2021-02-23 23:06:46,417 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 40 [2021-02-23 23:06:46,679 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2021-02-23 23:06:46,867 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 40 [2021-02-23 23:06:47,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:06:47,797 INFO L93 Difference]: Finished difference Result 219 states and 220 transitions. [2021-02-23 23:06:47,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-02-23 23:06:47,798 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 193 [2021-02-23 23:06:47,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:06:47,800 INFO L225 Difference]: With dead ends: 219 [2021-02-23 23:06:47,800 INFO L226 Difference]: Without dead ends: 203 [2021-02-23 23:06:47,802 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2519 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=988, Invalid=8132, Unknown=0, NotChecked=0, Total=9120 [2021-02-23 23:06:47,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-02-23 23:06:47,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 200. [2021-02-23 23:06:47,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2021-02-23 23:06:47,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 201 transitions. [2021-02-23 23:06:47,822 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 201 transitions. Word has length 193 [2021-02-23 23:06:47,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:06:47,822 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 201 transitions. [2021-02-23 23:06:47,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has 42 states. [2021-02-23 23:06:47,822 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 201 transitions. [2021-02-23 23:06:47,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-02-23 23:06:47,823 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:06:47,823 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:06:47,823 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-02-23 23:06:47,824 INFO L428 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:06:47,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:06:47,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1361726730, now seen corresponding path program 8 times [2021-02-23 23:06:47,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:06:47,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347641428] [2021-02-23 23:06:47,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:06:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:06:48,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:48,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:48,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:48,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:48,398 WARN L141 QuantifierPusher]: treesize reduction 59, result has 4.8 percent of original size [2021-02-23 23:06:48,398 WARN L147 QuantifierPusher]: treesize reduction 59, result has 4.8 percent of original size 3 [2021-02-23 23:06:48,399 WARN L141 QuantifierPusher]: treesize reduction 58, result has 10.8 percent of original size [2021-02-23 23:06:48,399 WARN L147 QuantifierPusher]: treesize reduction 58, result has 10.8 percent of original size 7 [2021-02-23 23:06:48,407 WARN L141 QuantifierPusher]: treesize reduction 58, result has 10.8 percent of original size [2021-02-23 23:06:48,407 WARN L147 QuantifierPusher]: treesize reduction 58, result has 10.8 percent of original size 7 [2021-02-23 23:06:48,415 WARN L141 QuantifierPusher]: treesize reduction 58, result has 19.4 percent of original size [2021-02-23 23:06:48,416 WARN L147 QuantifierPusher]: treesize reduction 58, result has 19.4 percent of original size 14 [2021-02-23 23:06:48,431 WARN L141 QuantifierPusher]: treesize reduction 58, result has 19.4 percent of original size [2021-02-23 23:06:48,431 WARN L147 QuantifierPusher]: treesize reduction 58, result has 19.4 percent of original size 14 [2021-02-23 23:06:48,448 WARN L141 QuantifierPusher]: treesize reduction 102, result has 44.0 percent of original size [2021-02-23 23:06:48,449 WARN L147 QuantifierPusher]: treesize reduction 102, result has 44.0 percent of original size 80 [2021-02-23 23:06:48,499 WARN L141 QuantifierPusher]: treesize reduction 74, result has 37.8 percent of original size [2021-02-23 23:06:48,500 WARN L147 QuantifierPusher]: treesize reduction 74, result has 37.8 percent of original size 45 [2021-02-23 23:06:48,540 WARN L141 QuantifierPusher]: treesize reduction 96, result has 36.4 percent of original size [2021-02-23 23:06:48,541 WARN L147 QuantifierPusher]: treesize reduction 96, result has 36.4 percent of original size 55 [2021-02-23 23:06:48,585 WARN L141 QuantifierPusher]: treesize reduction 74, result has 40.8 percent of original size [2021-02-23 23:06:48,586 WARN L147 QuantifierPusher]: treesize reduction 74, result has 40.8 percent of original size 51 [2021-02-23 23:06:48,633 WARN L141 QuantifierPusher]: treesize reduction 160, result has 33.9 percent of original size [2021-02-23 23:06:48,634 WARN L147 QuantifierPusher]: treesize reduction 160, result has 33.9 percent of original size 82 [2021-02-23 23:06:48,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:48,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:48,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:48,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:48,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:48,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:48,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:48,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:48,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:48,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:48,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:48,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:48,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:48,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:48,702 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:48,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:48,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:48,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:48,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:48,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:48,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:48,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:48,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:48,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:48,711 WARN L141 QuantifierPusher]: treesize reduction 209, result has 22.3 percent of original size [2021-02-23 23:06:48,712 WARN L147 QuantifierPusher]: treesize reduction 209, result has 22.3 percent of original size 60 [2021-02-23 23:06:48,752 WARN L141 QuantifierPusher]: treesize reduction 466, result has 23.7 percent of original size [2021-02-23 23:06:48,754 WARN L147 QuantifierPusher]: treesize reduction 466, result has 23.7 percent of original size 145 [2021-02-23 23:06:48,865 WARN L141 QuantifierPusher]: treesize reduction 115, result has 84.5 percent of original size [2021-02-23 23:06:48,871 WARN L147 QuantifierPusher]: treesize reduction 115, result has 84.5 percent of original size 629 [2021-02-23 23:06:49,223 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 44 [2021-02-23 23:06:49,232 WARN L141 QuantifierPusher]: treesize reduction 272, result has 67.7 percent of original size [2021-02-23 23:06:49,240 WARN L147 QuantifierPusher]: treesize reduction 272, result has 67.7 percent of original size 570 [2021-02-23 23:06:49,597 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 42 [2021-02-23 23:06:49,603 WARN L141 QuantifierPusher]: treesize reduction 308, result has 46.8 percent of original size [2021-02-23 23:06:49,606 WARN L147 QuantifierPusher]: treesize reduction 308, result has 46.8 percent of original size 271 [2021-02-23 23:06:49,875 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 45 [2021-02-23 23:06:49,884 WARN L141 QuantifierPusher]: treesize reduction 1064, result has 28.4 percent of original size [2021-02-23 23:06:49,886 WARN L147 QuantifierPusher]: treesize reduction 1064, result has 28.4 percent of original size 423 [2021-02-23 23:06:50,044 WARN L141 QuantifierPusher]: treesize reduction 170, result has 15.8 percent of original size [2021-02-23 23:06:50,045 WARN L147 QuantifierPusher]: treesize reduction 170, result has 15.8 percent of original size 32 [2021-02-23 23:06:50,088 WARN L141 QuantifierPusher]: treesize reduction 158, result has 19.0 percent of original size [2021-02-23 23:06:50,089 WARN L147 QuantifierPusher]: treesize reduction 158, result has 19.0 percent of original size 37 [2021-02-23 23:06:50,135 WARN L141 QuantifierPusher]: treesize reduction 31, result has 58.1 percent of original size [2021-02-23 23:06:50,136 WARN L147 QuantifierPusher]: treesize reduction 31, result has 58.1 percent of original size 43 [2021-02-23 23:06:50,191 WARN L141 QuantifierPusher]: treesize reduction 39, result has 50.0 percent of original size [2021-02-23 23:06:50,192 WARN L147 QuantifierPusher]: treesize reduction 39, result has 50.0 percent of original size 39 [2021-02-23 23:06:50,245 WARN L141 QuantifierPusher]: treesize reduction 39, result has 50.0 percent of original size [2021-02-23 23:06:50,246 WARN L147 QuantifierPusher]: treesize reduction 39, result has 50.0 percent of original size 39 [2021-02-23 23:06:50,298 WARN L141 QuantifierPusher]: treesize reduction 36, result has 53.8 percent of original size [2021-02-23 23:06:50,299 WARN L147 QuantifierPusher]: treesize reduction 36, result has 53.8 percent of original size 42 [2021-02-23 23:06:50,352 WARN L141 QuantifierPusher]: treesize reduction 36, result has 53.8 percent of original size [2021-02-23 23:06:50,353 WARN L147 QuantifierPusher]: treesize reduction 36, result has 53.8 percent of original size 42 [2021-02-23 23:06:50,426 WARN L141 QuantifierPusher]: treesize reduction 36, result has 53.8 percent of original size [2021-02-23 23:06:50,427 WARN L147 QuantifierPusher]: treesize reduction 36, result has 53.8 percent of original size 42 [2021-02-23 23:06:50,488 WARN L141 QuantifierPusher]: treesize reduction 36, result has 53.8 percent of original size [2021-02-23 23:06:50,489 WARN L147 QuantifierPusher]: treesize reduction 36, result has 53.8 percent of original size 42 [2021-02-23 23:06:50,551 WARN L141 QuantifierPusher]: treesize reduction 39, result has 50.0 percent of original size [2021-02-23 23:06:50,552 WARN L147 QuantifierPusher]: treesize reduction 39, result has 50.0 percent of original size 39 [2021-02-23 23:06:50,616 WARN L141 QuantifierPusher]: treesize reduction 36, result has 53.8 percent of original size [2021-02-23 23:06:50,620 WARN L147 QuantifierPusher]: treesize reduction 36, result has 53.8 percent of original size 42 [2021-02-23 23:06:50,681 WARN L141 QuantifierPusher]: treesize reduction 39, result has 50.0 percent of original size [2021-02-23 23:06:50,682 WARN L147 QuantifierPusher]: treesize reduction 39, result has 50.0 percent of original size 39 [2021-02-23 23:06:50,749 WARN L141 QuantifierPusher]: treesize reduction 6, result has 45.5 percent of original size [2021-02-23 23:06:50,749 WARN L147 QuantifierPusher]: treesize reduction 6, result has 45.5 percent of original size 5 [2021-02-23 23:06:50,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:50,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:50,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:06:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:06:50,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:50,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:50,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-02-23 23:06:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:06:50,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:50,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:50,993 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 529 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-02-23 23:06:50,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1347641428] [2021-02-23 23:06:50,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:06:50,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2021-02-23 23:06:50,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560988026] [2021-02-23 23:06:50,995 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-02-23 23:06:50,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:06:50,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-02-23 23:06:50,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=865, Unknown=0, NotChecked=0, Total=992 [2021-02-23 23:06:50,996 INFO L87 Difference]: Start difference. First operand 200 states and 201 transitions. Second operand 32 states. [2021-02-23 23:06:53,000 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2021-02-23 23:06:53,347 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-02-23 23:06:53,556 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 37 [2021-02-23 23:06:54,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:06:54,896 INFO L93 Difference]: Finished difference Result 231 states and 233 transitions. [2021-02-23 23:06:54,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-02-23 23:06:54,897 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 199 [2021-02-23 23:06:54,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:06:54,899 INFO L225 Difference]: With dead ends: 231 [2021-02-23 23:06:54,899 INFO L226 Difference]: Without dead ends: 215 [2021-02-23 23:06:54,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 964 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=603, Invalid=4367, Unknown=0, NotChecked=0, Total=4970 [2021-02-23 23:06:54,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-02-23 23:06:54,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 212. [2021-02-23 23:06:54,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2021-02-23 23:06:54,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 213 transitions. [2021-02-23 23:06:54,926 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 213 transitions. Word has length 199 [2021-02-23 23:06:54,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:06:54,927 INFO L480 AbstractCegarLoop]: Abstraction has 212 states and 213 transitions. [2021-02-23 23:06:54,927 INFO L481 AbstractCegarLoop]: Interpolant automaton has 32 states. [2021-02-23 23:06:54,927 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 213 transitions. [2021-02-23 23:06:54,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-02-23 23:06:54,928 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:06:54,928 INFO L422 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:06:54,929 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-02-23 23:06:54,929 INFO L428 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:06:54,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:06:54,929 INFO L82 PathProgramCache]: Analyzing trace with hash 932509286, now seen corresponding path program 9 times [2021-02-23 23:06:54,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:06:54,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [989628843] [2021-02-23 23:06:54,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:06:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:06:55,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:55,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:55,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:55,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:55,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:55,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:06:55,428 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:55,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:06:55,437 WARN L141 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-02-23 23:06:55,438 WARN L147 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size 17 [2021-02-23 23:06:55,462 WARN L141 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-02-23 23:06:55,463 WARN L147 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size 17 [2021-02-23 23:06:55,491 WARN L141 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-02-23 23:06:55,492 WARN L147 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size 39 [2021-02-23 23:06:55,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:55,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:55,537 WARN L141 QuantifierPusher]: treesize reduction 22, result has 42.1 percent of original size [2021-02-23 23:06:55,537 WARN L147 QuantifierPusher]: treesize reduction 22, result has 42.1 percent of original size 16 [2021-02-23 23:06:55,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:55,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:55,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:55,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:55,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:55,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:55,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:55,544 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:55,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:55,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:55,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:55,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:55,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:55,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:55,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:55,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:55,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:55,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:55,549 WARN L141 QuantifierPusher]: treesize reduction 22, result has 42.1 percent of original size [2021-02-23 23:06:55,550 WARN L147 QuantifierPusher]: treesize reduction 22, result has 42.1 percent of original size 16 [2021-02-23 23:06:55,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:55,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:55,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:55,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:55,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:55,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:55,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:55,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:55,557 WARN L141 QuantifierPusher]: treesize reduction 84, result has 26.3 percent of original size [2021-02-23 23:06:55,558 WARN L147 QuantifierPusher]: treesize reduction 84, result has 26.3 percent of original size 30 [2021-02-23 23:06:55,587 WARN L141 QuantifierPusher]: treesize reduction 126, result has 35.4 percent of original size [2021-02-23 23:06:55,588 WARN L147 QuantifierPusher]: treesize reduction 126, result has 35.4 percent of original size 69 [2021-02-23 23:06:55,660 WARN L141 QuantifierPusher]: treesize reduction 73, result has 69.2 percent of original size [2021-02-23 23:06:55,662 WARN L147 QuantifierPusher]: treesize reduction 73, result has 69.2 percent of original size 164 [2021-02-23 23:06:55,885 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 41 [2021-02-23 23:06:55,889 WARN L141 QuantifierPusher]: treesize reduction 55, result has 74.3 percent of original size [2021-02-23 23:06:55,891 WARN L147 QuantifierPusher]: treesize reduction 55, result has 74.3 percent of original size 159 [2021-02-23 23:06:55,929 WARN L141 QuantifierPusher]: treesize reduction 49, result has 66.2 percent of original size [2021-02-23 23:06:55,930 WARN L147 QuantifierPusher]: treesize reduction 49, result has 66.2 percent of original size 96 [2021-02-23 23:06:56,041 WARN L141 QuantifierPusher]: treesize reduction 51, result has 65.8 percent of original size [2021-02-23 23:06:56,042 WARN L147 QuantifierPusher]: treesize reduction 51, result has 65.8 percent of original size 98 [2021-02-23 23:06:56,145 WARN L141 QuantifierPusher]: treesize reduction 68, result has 61.6 percent of original size [2021-02-23 23:06:56,146 WARN L147 QuantifierPusher]: treesize reduction 68, result has 61.6 percent of original size 109 [2021-02-23 23:06:56,203 WARN L141 QuantifierPusher]: treesize reduction 53, result has 69.0 percent of original size [2021-02-23 23:06:56,204 WARN L147 QuantifierPusher]: treesize reduction 53, result has 69.0 percent of original size 118 [2021-02-23 23:06:56,255 WARN L141 QuantifierPusher]: treesize reduction 53, result has 69.0 percent of original size [2021-02-23 23:06:56,256 WARN L147 QuantifierPusher]: treesize reduction 53, result has 69.0 percent of original size 118 [2021-02-23 23:06:56,307 WARN L141 QuantifierPusher]: treesize reduction 53, result has 69.0 percent of original size [2021-02-23 23:06:56,309 WARN L147 QuantifierPusher]: treesize reduction 53, result has 69.0 percent of original size 118 [2021-02-23 23:06:56,364 WARN L141 QuantifierPusher]: treesize reduction 53, result has 69.0 percent of original size [2021-02-23 23:06:56,365 WARN L147 QuantifierPusher]: treesize reduction 53, result has 69.0 percent of original size 118 [2021-02-23 23:06:56,423 WARN L141 QuantifierPusher]: treesize reduction 53, result has 69.0 percent of original size [2021-02-23 23:06:56,424 WARN L147 QuantifierPusher]: treesize reduction 53, result has 69.0 percent of original size 118 [2021-02-23 23:06:56,487 WARN L141 QuantifierPusher]: treesize reduction 53, result has 69.0 percent of original size [2021-02-23 23:06:56,488 WARN L147 QuantifierPusher]: treesize reduction 53, result has 69.0 percent of original size 118 [2021-02-23 23:06:56,554 WARN L141 QuantifierPusher]: treesize reduction 53, result has 69.0 percent of original size [2021-02-23 23:06:56,556 WARN L147 QuantifierPusher]: treesize reduction 53, result has 69.0 percent of original size 118 [2021-02-23 23:06:56,628 WARN L141 QuantifierPusher]: treesize reduction 53, result has 69.0 percent of original size [2021-02-23 23:06:56,629 WARN L147 QuantifierPusher]: treesize reduction 53, result has 69.0 percent of original size 118 [2021-02-23 23:06:56,706 WARN L141 QuantifierPusher]: treesize reduction 53, result has 69.0 percent of original size [2021-02-23 23:06:56,707 WARN L147 QuantifierPusher]: treesize reduction 53, result has 69.0 percent of original size 118 [2021-02-23 23:06:56,787 WARN L141 QuantifierPusher]: treesize reduction 53, result has 68.6 percent of original size [2021-02-23 23:06:56,791 WARN L147 QuantifierPusher]: treesize reduction 53, result has 68.6 percent of original size 116 [2021-02-23 23:06:56,877 WARN L141 QuantifierPusher]: treesize reduction 53, result has 70.6 percent of original size [2021-02-23 23:06:56,880 WARN L147 QuantifierPusher]: treesize reduction 53, result has 70.6 percent of original size 127 [2021-02-23 23:06:56,979 WARN L141 QuantifierPusher]: treesize reduction 62, result has 65.7 percent of original size [2021-02-23 23:06:56,980 WARN L147 QuantifierPusher]: treesize reduction 62, result has 65.7 percent of original size 119 [2021-02-23 23:06:57,075 WARN L141 QuantifierPusher]: treesize reduction 62, result has 65.0 percent of original size [2021-02-23 23:06:57,078 WARN L147 QuantifierPusher]: treesize reduction 62, result has 65.0 percent of original size 115 [2021-02-23 23:06:57,171 WARN L141 QuantifierPusher]: treesize reduction 24, result has 76.2 percent of original size [2021-02-23 23:06:57,172 WARN L147 QuantifierPusher]: treesize reduction 24, result has 76.2 percent of original size 77 [2021-02-23 23:06:57,246 WARN L141 QuantifierPusher]: treesize reduction 19, result has 78.7 percent of original size [2021-02-23 23:06:57,247 WARN L147 QuantifierPusher]: treesize reduction 19, result has 78.7 percent of original size 70 [2021-02-23 23:06:57,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:57,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:06:57,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:57,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:57,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:06:57,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:06:57,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:57,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:06:57,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-02-23 23:06:57,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:06:57,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:57,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:06:57,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:57,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 23:06:57,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:57,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-23 23:06:57,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:57,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 23:06:57,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:57,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 23:06:57,942 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 519 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-02-23 23:06:57,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [989628843] [2021-02-23 23:06:57,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:06:57,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2021-02-23 23:06:57,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928707087] [2021-02-23 23:06:57,943 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-02-23 23:06:57,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:06:57,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-02-23 23:06:57,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=1176, Unknown=0, NotChecked=0, Total=1260 [2021-02-23 23:06:57,944 INFO L87 Difference]: Start difference. First operand 212 states and 213 transitions. Second operand 36 states. [2021-02-23 23:06:59,783 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2021-02-23 23:07:03,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:07:03,422 INFO L93 Difference]: Finished difference Result 228 states and 230 transitions. [2021-02-23 23:07:03,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-02-23 23:07:03,423 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 211 [2021-02-23 23:07:03,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:07:03,425 INFO L225 Difference]: With dead ends: 228 [2021-02-23 23:07:03,425 INFO L226 Difference]: Without dead ends: 221 [2021-02-23 23:07:03,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1367 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=377, Invalid=5943, Unknown=0, NotChecked=0, Total=6320 [2021-02-23 23:07:03,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-02-23 23:07:03,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 218. [2021-02-23 23:07:03,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2021-02-23 23:07:03,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 219 transitions. [2021-02-23 23:07:03,456 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 219 transitions. Word has length 211 [2021-02-23 23:07:03,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:07:03,457 INFO L480 AbstractCegarLoop]: Abstraction has 218 states and 219 transitions. [2021-02-23 23:07:03,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 36 states. [2021-02-23 23:07:03,457 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 219 transitions. [2021-02-23 23:07:03,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-02-23 23:07:03,458 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:07:03,459 INFO L422 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:07:03,459 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-02-23 23:07:03,459 INFO L428 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:07:03,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:07:03,459 INFO L82 PathProgramCache]: Analyzing trace with hash 521615646, now seen corresponding path program 10 times [2021-02-23 23:07:03,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:07:03,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [200260490] [2021-02-23 23:07:03,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:07:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:07:04,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:07:04,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:07:04,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:07:04,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:07:04,140 WARN L141 QuantifierPusher]: treesize reduction 92, result has 3.2 percent of original size [2021-02-23 23:07:04,141 WARN L147 QuantifierPusher]: treesize reduction 92, result has 3.2 percent of original size 3 [2021-02-23 23:07:04,142 WARN L141 QuantifierPusher]: treesize reduction 91, result has 7.1 percent of original size [2021-02-23 23:07:04,142 WARN L147 QuantifierPusher]: treesize reduction 91, result has 7.1 percent of original size 7 [2021-02-23 23:07:04,150 WARN L141 QuantifierPusher]: treesize reduction 91, result has 7.1 percent of original size [2021-02-23 23:07:04,150 WARN L147 QuantifierPusher]: treesize reduction 91, result has 7.1 percent of original size 7 [2021-02-23 23:07:04,161 WARN L141 QuantifierPusher]: treesize reduction 165, result has 16.2 percent of original size [2021-02-23 23:07:04,162 WARN L147 QuantifierPusher]: treesize reduction 165, result has 16.2 percent of original size 32 [2021-02-23 23:07:04,194 WARN L141 QuantifierPusher]: treesize reduction 165, result has 16.2 percent of original size [2021-02-23 23:07:04,195 WARN L147 QuantifierPusher]: treesize reduction 165, result has 16.2 percent of original size 32 [2021-02-23 23:07:04,229 WARN L141 QuantifierPusher]: treesize reduction 309, result has 29.8 percent of original size [2021-02-23 23:07:04,231 WARN L147 QuantifierPusher]: treesize reduction 309, result has 29.8 percent of original size 131 [2021-02-23 23:07:04,330 WARN L141 QuantifierPusher]: treesize reduction 154, result has 36.6 percent of original size [2021-02-23 23:07:04,331 WARN L147 QuantifierPusher]: treesize reduction 154, result has 36.6 percent of original size 89 [2021-02-23 23:07:04,411 WARN L141 QuantifierPusher]: treesize reduction 172, result has 38.1 percent of original size [2021-02-23 23:07:04,413 WARN L147 QuantifierPusher]: treesize reduction 172, result has 38.1 percent of original size 106 [2021-02-23 23:07:04,492 WARN L141 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size [2021-02-23 23:07:04,493 WARN L147 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size 7 [2021-02-23 23:07:04,513 WARN L141 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size [2021-02-23 23:07:04,514 WARN L147 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size 7 [2021-02-23 23:07:04,535 WARN L141 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size [2021-02-23 23:07:04,535 WARN L147 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size 7 [2021-02-23 23:07:04,556 WARN L141 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size [2021-02-23 23:07:04,557 WARN L147 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size 7 [2021-02-23 23:07:04,578 WARN L141 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size [2021-02-23 23:07:04,579 WARN L147 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size 7 [2021-02-23 23:07:04,603 WARN L141 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size [2021-02-23 23:07:04,603 WARN L147 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size 7 [2021-02-23 23:07:04,627 WARN L141 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size [2021-02-23 23:07:04,627 WARN L147 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size 7 [2021-02-23 23:07:04,652 WARN L141 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size [2021-02-23 23:07:04,653 WARN L147 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size 7 [2021-02-23 23:07:04,679 WARN L141 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size [2021-02-23 23:07:04,680 WARN L147 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size 7 [2021-02-23 23:07:04,707 WARN L141 QuantifierPusher]: treesize reduction 71, result has 32.4 percent of original size [2021-02-23 23:07:04,708 WARN L147 QuantifierPusher]: treesize reduction 71, result has 32.4 percent of original size 34 [2021-02-23 23:07:04,750 WARN L141 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size [2021-02-23 23:07:04,750 WARN L147 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size 7 [2021-02-23 23:07:04,781 WARN L141 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size [2021-02-23 23:07:04,782 WARN L147 QuantifierPusher]: treesize reduction 63, result has 10.0 percent of original size 7 [2021-02-23 23:07:04,811 WARN L141 QuantifierPusher]: treesize reduction 51, result has 5.6 percent of original size [2021-02-23 23:07:04,811 WARN L147 QuantifierPusher]: treesize reduction 51, result has 5.6 percent of original size 3 [2021-02-23 23:07:04,813 WARN L141 QuantifierPusher]: treesize reduction 51, result has 23.9 percent of original size [2021-02-23 23:07:04,813 WARN L147 QuantifierPusher]: treesize reduction 51, result has 23.9 percent of original size 16 [2021-02-23 23:07:04,870 WARN L141 QuantifierPusher]: treesize reduction 245, result has 27.1 percent of original size [2021-02-23 23:07:04,871 WARN L147 QuantifierPusher]: treesize reduction 245, result has 27.1 percent of original size 91 [2021-02-23 23:07:04,997 WARN L141 QuantifierPusher]: treesize reduction 662, result has 21.0 percent of original size [2021-02-23 23:07:05,000 WARN L147 QuantifierPusher]: treesize reduction 662, result has 21.0 percent of original size 176 [2021-02-23 23:07:05,240 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 27 [2021-02-23 23:07:05,259 WARN L141 QuantifierPusher]: treesize reduction 890, result has 37.7 percent of original size [2021-02-23 23:07:05,266 WARN L147 QuantifierPusher]: treesize reduction 890, result has 37.7 percent of original size 538 [2021-02-23 23:07:05,682 WARN L202 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 31 [2021-02-23 23:07:05,696 WARN L141 QuantifierPusher]: treesize reduction 1017, result has 33.7 percent of original size [2021-02-23 23:07:05,702 WARN L147 QuantifierPusher]: treesize reduction 1017, result has 33.7 percent of original size 516 [2021-02-23 23:07:06,067 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 25 [2021-02-23 23:07:06,078 WARN L141 QuantifierPusher]: treesize reduction 511, result has 40.2 percent of original size [2021-02-23 23:07:06,082 WARN L147 QuantifierPusher]: treesize reduction 511, result has 40.2 percent of original size 343 [2021-02-23 23:07:06,345 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 34 [2021-02-23 23:07:06,364 WARN L141 QuantifierPusher]: treesize reduction 2574, result has 6.5 percent of original size [2021-02-23 23:07:06,365 WARN L147 QuantifierPusher]: treesize reduction 2574, result has 6.5 percent of original size 179 [2021-02-23 23:07:06,536 WARN L141 QuantifierPusher]: treesize reduction 70, result has 39.7 percent of original size [2021-02-23 23:07:06,537 WARN L147 QuantifierPusher]: treesize reduction 70, result has 39.7 percent of original size 46 [2021-02-23 23:07:06,592 WARN L141 QuantifierPusher]: treesize reduction 85, result has 30.3 percent of original size [2021-02-23 23:07:06,593 WARN L147 QuantifierPusher]: treesize reduction 85, result has 30.3 percent of original size 37 [2021-02-23 23:07:06,643 WARN L141 QuantifierPusher]: treesize reduction 34, result has 57.5 percent of original size [2021-02-23 23:07:06,644 WARN L147 QuantifierPusher]: treesize reduction 34, result has 57.5 percent of original size 46 [2021-02-23 23:07:06,709 WARN L141 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-02-23 23:07:06,710 WARN L147 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size 37 [2021-02-23 23:07:06,711 WARN L141 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size [2021-02-23 23:07:06,712 WARN L147 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size 42 [2021-02-23 23:07:06,768 WARN L141 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-02-23 23:07:06,769 WARN L147 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size 37 [2021-02-23 23:07:06,824 WARN L141 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-02-23 23:07:06,825 WARN L147 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size 37 [2021-02-23 23:07:06,881 WARN L141 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-02-23 23:07:06,882 WARN L147 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size 37 [2021-02-23 23:07:06,940 WARN L141 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-02-23 23:07:06,941 WARN L147 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size 37 [2021-02-23 23:07:07,003 WARN L141 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size [2021-02-23 23:07:07,004 WARN L147 QuantifierPusher]: treesize reduction 38, result has 52.5 percent of original size 42 [2021-02-23 23:07:07,072 WARN L141 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-02-23 23:07:07,073 WARN L147 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size 37 [2021-02-23 23:07:07,139 WARN L141 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-02-23 23:07:07,140 WARN L147 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size 37 [2021-02-23 23:07:07,208 WARN L141 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-02-23 23:07:07,209 WARN L147 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size 37 [2021-02-23 23:07:07,280 WARN L141 QuantifierPusher]: treesize reduction 41, result has 46.1 percent of original size [2021-02-23 23:07:07,281 WARN L147 QuantifierPusher]: treesize reduction 41, result has 46.1 percent of original size 35 [2021-02-23 23:07:07,353 WARN L141 QuantifierPusher]: treesize reduction 37, result has 45.6 percent of original size [2021-02-23 23:07:07,354 WARN L147 QuantifierPusher]: treesize reduction 37, result has 45.6 percent of original size 31 [2021-02-23 23:07:07,413 WARN L141 QuantifierPusher]: treesize reduction 22, result has 56.0 percent of original size [2021-02-23 23:07:07,414 WARN L147 QuantifierPusher]: treesize reduction 22, result has 56.0 percent of original size 28 [2021-02-23 23:07:07,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:07:07,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:07:07,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:07:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:07:07,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:07:07,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:07:07,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-02-23 23:07:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:07:07,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:07:07,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:07:07,646 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 483 proven. 329 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:07:07,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [200260490] [2021-02-23 23:07:07,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:07:07,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2021-02-23 23:07:07,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117291394] [2021-02-23 23:07:07,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-02-23 23:07:07,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:07:07,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-02-23 23:07:07,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=1684, Unknown=0, NotChecked=0, Total=1892 [2021-02-23 23:07:07,648 INFO L87 Difference]: Start difference. First operand 218 states and 219 transitions. Second operand 44 states. [2021-02-23 23:07:11,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:07:11,147 INFO L93 Difference]: Finished difference Result 218 states and 219 transitions. [2021-02-23 23:07:11,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-02-23 23:07:11,147 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 217 [2021-02-23 23:07:11,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:07:11,148 INFO L225 Difference]: With dead ends: 218 [2021-02-23 23:07:11,148 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 23:07:11,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2410 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1078, Invalid=7664, Unknown=0, NotChecked=0, Total=8742 [2021-02-23 23:07:11,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 23:07:11,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 23:07:11,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 23:07:11,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 23:07:11,151 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 217 [2021-02-23 23:07:11,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:07:11,151 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 23:07:11,151 INFO L481 AbstractCegarLoop]: Interpolant automaton has 44 states. [2021-02-23 23:07:11,151 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 23:07:11,151 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 23:07:11,151 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-02-23 23:07:11,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 23:07:12,323 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 57 [2021-02-23 23:07:12,670 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 61 [2021-02-23 23:07:12,903 WARN L202 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 43 [2021-02-23 23:07:13,192 WARN L202 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 35 [2021-02-23 23:07:13,633 WARN L202 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 75 [2021-02-23 23:07:14,083 WARN L202 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 75 [2021-02-23 23:07:14,770 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 43 [2021-02-23 23:07:14,965 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 43 [2021-02-23 23:07:15,160 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 43 [2021-02-23 23:07:15,574 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 43 [2021-02-23 23:07:15,775 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 43 [2021-02-23 23:07:15,987 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 43 [2021-02-23 23:07:16,466 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 41 [2021-02-23 23:07:17,315 WARN L202 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 47 [2021-02-23 23:07:17,900 WARN L202 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 38 [2021-02-23 23:07:17,907 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-23 23:07:17,908 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-23 23:07:17,908 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-23 23:07:17,908 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-23 23:07:17,908 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-23 23:07:17,908 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 23:07:17,908 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-23 23:07:17,908 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-23 23:07:17,908 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-23 23:07:17,909 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-23 23:07:17,909 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-23 23:07:17,909 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-23 23:07:17,909 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-23 23:07:17,909 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-23 23:07:17,909 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 23:07:17,910 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 23:07:17,910 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-23 23:07:17,910 INFO L185 CegarLoopUtils]: At program point L39-6(lines 39 41) the Hoare annotation is: (and (= main_~i~0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|)) (+ (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|) 4))) (= |main_~#array~0.offset| 0) (<= main_~i~0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset))) [2021-02-23 23:07:17,911 INFO L185 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: (let ((.cse0 (= |main_~#array~0.offset| 0))) (or (and (<= 5 main_~j~0) .cse0 (<= main_~j~0 5)) (and (<= 3 main_~j~0) .cse0 (<= main_~j~0 3)) (and (<= main_~j~0 2) .cse0 (<= 2 main_~j~0)) (and (= main_~j~0 0) .cse0) (and (<= main_~j~0 8) .cse0 (<= 8 main_~j~0)) (and (<= main_~j~0 7) (<= 7 main_~j~0) .cse0) (and .cse0 (<= 9 main_~j~0) (<= main_~j~0 9)) (and (<= main_~j~0 6) (<= 6 main_~j~0) .cse0) (and (<= 4 main_~j~0) (<= main_~j~0 4) .cse0) (and (<= 1 main_~j~0) (<= main_~j~0 1) .cse0))) [2021-02-23 23:07:17,911 INFO L185 CegarLoopUtils]: At program point L31-1(line 31) the Hoare annotation is: (let ((.cse0 (= |main_~#array~0.offset| 0))) (or (and (<= 5 main_~j~0) .cse0 (<= main_~j~0 5)) (and (<= 3 main_~j~0) .cse0 (<= main_~j~0 3)) (and (<= main_~j~0 2) .cse0 (<= 2 main_~j~0)) (and (= main_~j~0 0) .cse0) (and (<= main_~j~0 8) .cse0 (<= 8 main_~j~0)) (and (<= main_~j~0 7) (<= 7 main_~j~0) .cse0) (and .cse0 (<= 9 main_~j~0) (<= main_~j~0 9)) (and (<= main_~j~0 6) (<= 6 main_~j~0) .cse0) (and (<= 4 main_~j~0) (<= main_~j~0 4) .cse0) (and (<= 1 main_~j~0) (<= main_~j~0 1) .cse0))) [2021-02-23 23:07:17,911 INFO L185 CegarLoopUtils]: At program point L31-2(line 31) the Hoare annotation is: (let ((.cse0 (= |main_~#array~0.offset| 0))) (or (and (<= 5 main_~j~0) .cse0 (<= main_~j~0 5)) (and (<= 3 main_~j~0) .cse0 (<= main_~j~0 3)) (and (<= main_~j~0 2) .cse0 (<= 2 main_~j~0)) (and (= main_~j~0 0) .cse0) (and (<= main_~j~0 8) .cse0 (<= 8 main_~j~0)) (and (<= main_~j~0 7) (<= 7 main_~j~0) .cse0) (and .cse0 (<= 9 main_~j~0) (<= main_~j~0 9)) (and (<= main_~j~0 6) (<= 6 main_~j~0) .cse0) (and (<= 4 main_~j~0) (<= main_~j~0 4) .cse0) (and (<= 1 main_~j~0) (<= main_~j~0 1) .cse0))) [2021-02-23 23:07:17,912 INFO L185 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: (= |main_~#array~0.offset| 0) [2021-02-23 23:07:17,912 INFO L185 CegarLoopUtils]: At program point L27-1(line 27) the Hoare annotation is: (= |main_~#array~0.offset| 0) [2021-02-23 23:07:17,912 INFO L185 CegarLoopUtils]: At program point L27-2(line 27) the Hoare annotation is: (= |main_~#array~0.offset| 0) [2021-02-23 23:07:17,912 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 22 52) the Hoare annotation is: true [2021-02-23 23:07:17,912 INFO L185 CegarLoopUtils]: At program point L40(line 40) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset)) (.cse10 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|)) (+ (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|) 4)))) (let ((.cse2 (= |main_~#array~0.offset| 0)) (.cse3 (= .cse1 .cse10)) (.cse4 (<= 9 main_~j~0))) (or (let ((.cse0 (+ main_~i~0 4))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) .cse2 .cse3 .cse4)) (let ((.cse5 (+ main_~i~0 5))) (and (<= .cse1 .cse5) .cse2 (<= .cse5 .cse1) .cse3 .cse4)) (let ((.cse6 (+ main_~i~0 6))) (and .cse2 .cse3 (<= .cse6 .cse1) (<= .cse1 .cse6) .cse4)) (let ((.cse7 (+ main_~i~0 8))) (and (<= .cse7 .cse1) .cse2 .cse3 .cse4 (<= .cse1 .cse7))) (let ((.cse8 (+ main_~i~0 2))) (and (<= .cse8 .cse1) .cse2 .cse3 .cse4 (<= .cse1 .cse8))) (let ((.cse9 (+ main_~i~0 10))) (and (= .cse9 .cse10) (<= .cse9 .cse1) .cse2 (<= .cse1 .cse9) .cse4)) (let ((.cse11 (+ main_~i~0 7))) (and (<= .cse11 .cse1) .cse2 (<= .cse1 .cse11) .cse3 .cse4)) (let ((.cse12 (+ main_~i~0 3))) (and (<= .cse1 .cse12) (<= .cse12 .cse1) .cse2 .cse3 .cse4)) (let ((.cse13 (+ main_~i~0 9))) (and (<= .cse13 .cse1) (<= .cse1 .cse13) .cse2 .cse3 .cse4)) (let ((.cse14 (+ main_~i~0 1))) (and (<= .cse14 .cse1) (<= .cse1 .cse14) .cse2 .cse3 .cse4))))) [2021-02-23 23:07:17,913 INFO L185 CegarLoopUtils]: At program point L40-1(line 40) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset)) (.cse10 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|)) (+ (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|) 4)))) (let ((.cse2 (= |main_~#array~0.offset| 0)) (.cse3 (= .cse1 .cse10)) (.cse4 (<= 9 main_~j~0))) (or (let ((.cse0 (+ main_~i~0 4))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) .cse2 .cse3 .cse4)) (let ((.cse5 (+ main_~i~0 5))) (and (<= .cse1 .cse5) .cse2 (<= .cse5 .cse1) .cse3 .cse4)) (let ((.cse6 (+ main_~i~0 6))) (and .cse2 .cse3 (<= .cse6 .cse1) (<= .cse1 .cse6) .cse4)) (let ((.cse7 (+ main_~i~0 8))) (and (<= .cse7 .cse1) .cse2 .cse3 .cse4 (<= .cse1 .cse7))) (let ((.cse8 (+ main_~i~0 2))) (and (<= .cse8 .cse1) .cse2 .cse3 .cse4 (<= .cse1 .cse8))) (let ((.cse9 (+ main_~i~0 10))) (and (= .cse9 .cse10) (<= .cse9 .cse1) .cse2 (<= .cse1 .cse9) .cse4)) (let ((.cse11 (+ main_~i~0 7))) (and (<= .cse11 .cse1) .cse2 (<= .cse1 .cse11) .cse3 .cse4)) (let ((.cse12 (+ main_~i~0 3))) (and (<= .cse1 .cse12) (<= .cse12 .cse1) .cse2 .cse3 .cse4)) (let ((.cse13 (+ main_~i~0 9))) (and (<= .cse13 .cse1) (<= .cse1 .cse13) .cse2 .cse3 .cse4)) (let ((.cse14 (+ main_~i~0 1))) (and (<= .cse14 .cse1) (<= .cse1 .cse14) .cse2 .cse3 .cse4))))) [2021-02-23 23:07:17,913 INFO L185 CegarLoopUtils]: At program point L40-2(line 40) the Hoare annotation is: (let ((.cse3 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset))) (let ((.cse0 (= |main_~#array~0.offset| 0)) (.cse1 (= .cse3 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|)) (+ (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|) 4)))) (.cse2 (<= 9 main_~j~0))) (or (and .cse0 .cse1 .cse2 (<= main_~i~0 .cse3) (<= .cse3 (+ main_~i~0 8))) (let ((.cse4 (+ main_~i~0 9))) (and (<= .cse4 .cse3) (<= .cse3 .cse4) .cse0 .cse1 .cse2))))) [2021-02-23 23:07:17,913 INFO L185 CegarLoopUtils]: At program point L36(line 36) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|))) (and (= |main_#t~mem13.offset| .cse0) (< 0 (+ (* 8 main_~i~0) |main_~#array~0.offset| 1)) (= (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|) |main_#t~mem13.base|) (= |main_~#array~0.offset| 0) (= .cse0 (+ (* main_~i~0 8) |main_~#array~0.offset|)) (= |main_#t~mem13.base| |main_~#array~0.base|) (<= 9 main_~j~0))) [2021-02-23 23:07:17,913 INFO L185 CegarLoopUtils]: At program point L36-1(line 36) the Hoare annotation is: (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|)) (.cse0 (+ (* main_~i~0 8) |main_~#array~0.offset|)) (.cse2 (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|))) (and (= |main_#t~mem13.offset| .cse0) (= .cse1 main_~pa~0.base) (< 0 (+ (* 8 main_~i~0) |main_~#array~0.offset| 1)) (= .cse1 |main_#t~mem13.base|) (= |main_~#array~0.offset| 0) (= .cse2 .cse0) (= (+ .cse2 4) main_~pa~0.offset) (<= 9 main_~j~0) (= |main_~#array~0.base| main_~pa~0.base))) [2021-02-23 23:07:17,913 INFO L192 CegarLoopUtils]: At program point L24(line 24) the Hoare annotation is: true [2021-02-23 23:07:17,913 INFO L192 CegarLoopUtils]: At program point L24-1(line 24) the Hoare annotation is: true [2021-02-23 23:07:17,913 INFO L192 CegarLoopUtils]: At program point L24-2(line 24) the Hoare annotation is: true [2021-02-23 23:07:17,913 INFO L185 CegarLoopUtils]: At program point L24-3(line 24) the Hoare annotation is: false [2021-02-23 23:07:17,914 INFO L185 CegarLoopUtils]: At program point L24-4(line 24) the Hoare annotation is: false [2021-02-23 23:07:17,914 INFO L185 CegarLoopUtils]: At program point L37(line 37) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|))) (and (= (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|) main_~pa~0.base) (< 0 (+ (* 8 main_~i~0) |main_~#array~0.offset| 1)) (= |main_~#array~0.offset| 0) (= .cse0 (+ (* main_~i~0 8) |main_~#array~0.offset|)) (= (+ .cse0 4) main_~pa~0.offset) (<= 9 main_~j~0) (= |main_~#array~0.base| main_~pa~0.base))) [2021-02-23 23:07:17,914 INFO L185 CegarLoopUtils]: At program point L37-1(line 37) the Hoare annotation is: (let ((.cse0 (+ (* main_~i~0 8) |main_~#array~0.offset|))) (and (= (+ |main_#t~mem14.offset| 4) main_~pa~0.offset) (= .cse0 |main_#t~mem14.offset|) (= |main_#t~mem14.base| main_~pa~0.base) (= (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|) main_~pa~0.base) (or (< 7 |main_#t~mem14.offset|) (= .cse0 0)) (= |main_~#array~0.offset| 0) (= (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|) .cse0) (<= 9 main_~j~0) (= |main_~#array~0.base| main_~pa~0.base))) [2021-02-23 23:07:17,914 INFO L185 CegarLoopUtils]: At program point L37-2(lines 37 45) the Hoare annotation is: (let ((.cse1 (* main_~i~0 8))) (let ((.cse0 (+ .cse1 |main_~#array~0.offset|))) (and (= (+ |main_#t~mem14.offset| 4) main_~pa~0.offset) (= .cse0 |main_#t~mem14.offset|) (= |main_#t~mem14.base| main_~pa~0.base) (= (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|) main_~pa~0.base) (= |main_#t~mem15| (select (select |#memory_int| |main_~#array~0.base|) (+ .cse1 |main_~#array~0.offset| 4))) (= |main_~#array~0.offset| 0) (or (= .cse0 0) (< 11 main_~pa~0.offset)) (= (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|) .cse0) (<= 9 main_~j~0) (= |main_~#array~0.base| main_~pa~0.base)))) [2021-02-23 23:07:17,914 INFO L185 CegarLoopUtils]: At program point L37-3(line 37) the Hoare annotation is: (let ((.cse1 (* main_~i~0 8))) (let ((.cse0 (+ .cse1 |main_~#array~0.offset|))) (and (= (+ |main_#t~mem14.offset| 4) main_~pa~0.offset) (= .cse0 |main_#t~mem14.offset|) (= |main_#t~mem14.base| main_~pa~0.base) (= (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|) main_~pa~0.base) (= |main_#t~mem15| (select (select |#memory_int| |main_~#array~0.base|) (+ .cse1 |main_~#array~0.offset| 4))) (= |main_~#array~0.offset| 0) (or (= .cse0 0) (< 11 main_~pa~0.offset)) (= (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|) .cse0) (<= 9 main_~j~0) (= |main_~#array~0.base| main_~pa~0.base)))) [2021-02-23 23:07:17,914 INFO L185 CegarLoopUtils]: At program point L37-4(line 37) the Hoare annotation is: (let ((.cse0 (+ (* main_~i~0 8) |main_~#array~0.offset|)) (.cse1 (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|))) (and (= (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|) main_~pa~0.base) (= |main_#t~mem15| (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset)) (= |main_~#array~0.offset| 0) (or (= .cse0 0) (< 11 main_~pa~0.offset)) (= .cse1 .cse0) (= (+ .cse1 4) main_~pa~0.offset) (<= 9 main_~j~0) (= |main_~#array~0.base| main_~pa~0.base))) [2021-02-23 23:07:17,914 INFO L192 CegarLoopUtils]: At program point L37-6(line 37) the Hoare annotation is: true [2021-02-23 23:07:17,914 INFO L192 CegarLoopUtils]: At program point L37-7(line 37) the Hoare annotation is: true [2021-02-23 23:07:17,914 INFO L185 CegarLoopUtils]: At program point L29(line 29) the Hoare annotation is: (= |main_~#array~0.offset| 0) [2021-02-23 23:07:17,915 INFO L185 CegarLoopUtils]: At program point L29-3(lines 29 32) the Hoare annotation is: (let ((.cse0 (= |main_~#array~0.offset| 0))) (or (and (<= 5 main_~j~0) .cse0 (<= main_~j~0 5)) (and (<= 3 main_~j~0) .cse0 (<= main_~j~0 3)) (and (<= main_~j~0 2) .cse0 (<= 2 main_~j~0)) (and (= main_~j~0 0) .cse0) (and (<= main_~j~0 8) .cse0 (<= 8 main_~j~0)) (and (<= main_~j~0 7) (<= 7 main_~j~0) .cse0) (and .cse0 (<= 9 main_~j~0) (<= main_~j~0 9)) (and (<= main_~j~0 6) (<= 6 main_~j~0) .cse0) (and (<= 4 main_~j~0) (<= main_~j~0 4) .cse0) (and (<= 1 main_~j~0) (<= main_~j~0 1) .cse0))) [2021-02-23 23:07:17,915 INFO L185 CegarLoopUtils]: At program point L25(line 25) the Hoare annotation is: (= |main_~#array~0.offset| 0) [2021-02-23 23:07:17,915 INFO L185 CegarLoopUtils]: At program point L29-4(line 29) the Hoare annotation is: (let ((.cse1 (<= 8 |main_#t~post10|)) (.cse0 (= |main_~#array~0.offset| 0))) (or (and (<= main_~j~0 2) (<= 2 |main_#t~post10|) .cse0 (<= 2 main_~j~0) (<= |main_#t~post10| 2)) (and .cse1 .cse0 (<= 9 main_~j~0) (<= main_~j~0 9)) (and (<= main_~j~0 6) (<= 6 |main_#t~post10|) (<= 6 main_~j~0) .cse0 (<= |main_#t~post10| 6)) (and (<= |main_#t~post10| 4) (<= 4 main_~j~0) (<= main_~j~0 4) (<= 4 |main_#t~post10|) .cse0) (and (<= 1 main_~j~0) (<= main_~j~0 1) .cse0 (<= |main_#t~post10| 1) (<= 1 |main_#t~post10|)) (and .cse1 (<= main_~j~0 8) .cse0 (<= 8 main_~j~0) (<= |main_#t~post10| 8)) (and (<= 3 main_~j~0) (<= |main_#t~post10| 3) .cse0 (<= main_~j~0 3) (<= 3 |main_#t~post10|)) (and (<= 5 main_~j~0) .cse0 (<= main_~j~0 5) (<= 5 |main_#t~post10|) (<= |main_#t~post10| 5)) (and (<= main_~j~0 7) (<= 7 main_~j~0) (<= 7 |main_#t~post10|) .cse0 (<= |main_#t~post10| 7)) (and (= main_~j~0 0) .cse0 (= 0 |main_#t~post10|)))) [2021-02-23 23:07:17,915 INFO L185 CegarLoopUtils]: At program point L29-5(line 29) the Hoare annotation is: (let ((.cse0 (= |main_~#array~0.offset| 0))) (or (and (<= main_~j~0 8) (<= 7 |main_#t~post10|) .cse0 (<= 8 main_~j~0) (<= |main_#t~post10| 7)) (and (<= main_~j~0 6) (<= 6 main_~j~0) .cse0 (<= 5 |main_#t~post10|) (<= |main_#t~post10| 5)) (and (<= 3 main_~j~0) (<= 2 |main_#t~post10|) .cse0 (<= main_~j~0 3) (<= |main_#t~post10| 2)) (and (<= main_~j~0 2) .cse0 (<= 2 main_~j~0) (<= |main_#t~post10| 1) (<= 1 |main_#t~post10|)) (and (<= main_~j~0 7) (<= 7 main_~j~0) (<= 6 |main_#t~post10|) .cse0 (<= |main_#t~post10| 6)) (and (<= |main_#t~post10| 3) (<= 4 main_~j~0) (<= main_~j~0 4) .cse0 (<= 3 |main_#t~post10|)) (and (<= |main_#t~post10| 4) (<= 5 main_~j~0) (<= 4 |main_#t~post10|) .cse0 (<= main_~j~0 5)) (and (<= 1 main_~j~0) (<= main_~j~0 1) .cse0 (= 0 |main_#t~post10|)) (and (<= 8 |main_#t~post10|) .cse0 (<= 9 main_~j~0)))) [2021-02-23 23:07:17,915 INFO L192 CegarLoopUtils]: At program point L25-1(line 25) the Hoare annotation is: true [2021-02-23 23:07:17,915 INFO L185 CegarLoopUtils]: At program point L29-6(lines 29 32) the Hoare annotation is: (let ((.cse0 (= |main_~#array~0.offset| 0))) (or (and (= main_~j~0 0) .cse0) (and (<= 1 main_~j~0) .cse0))) [2021-02-23 23:07:17,915 INFO L192 CegarLoopUtils]: At program point L25-2(line 25) the Hoare annotation is: true [2021-02-23 23:07:17,915 INFO L185 CegarLoopUtils]: At program point L29-7(lines 23 52) the Hoare annotation is: (and (= |main_~#array~0.offset| 0) (<= 9 main_~j~0)) [2021-02-23 23:07:17,915 INFO L185 CegarLoopUtils]: At program point L25-3(line 25) the Hoare annotation is: false [2021-02-23 23:07:17,916 INFO L185 CegarLoopUtils]: At program point L25-4(line 25) the Hoare annotation is: false [2021-02-23 23:07:17,916 INFO L185 CegarLoopUtils]: At program point L50(line 50) the Hoare annotation is: false [2021-02-23 23:07:17,916 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 22 52) the Hoare annotation is: true [2021-02-23 23:07:17,916 INFO L185 CegarLoopUtils]: At program point L42(line 42) the Hoare annotation is: (and (= main_~i~0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|)) (+ (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|) 4))) (<= 1 |main_#t~ret19|) (= |main_~#array~0.offset| 0) (<= main_~i~0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset))) [2021-02-23 23:07:17,916 INFO L185 CegarLoopUtils]: At program point L42-1(lines 42 44) the Hoare annotation is: (and (= main_~i~0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|)) (+ (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|) 4))) (<= 1 |main_#t~ret19|) (= |main_~#array~0.offset| 0) (<= main_~i~0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset))) [2021-02-23 23:07:17,916 INFO L185 CegarLoopUtils]: At program point L42-2(line 42) the Hoare annotation is: false [2021-02-23 23:07:17,916 INFO L192 CegarLoopUtils]: At program point L42-3(line 42) the Hoare annotation is: true [2021-02-23 23:07:17,916 INFO L185 CegarLoopUtils]: At program point L38(line 38) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|))) (and (= (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|) main_~pa~0.base) (< 0 (+ (* 8 main_~i~0) |main_~#array~0.offset| 1)) (= |main_~#array~0.offset| 0) (= .cse0 (+ (* main_~i~0 8) |main_~#array~0.offset|)) (= (+ .cse0 4) main_~pa~0.offset) (<= 9 main_~j~0) (= |main_~#array~0.base| main_~pa~0.base))) [2021-02-23 23:07:17,916 INFO L185 CegarLoopUtils]: At program point L38-1(line 38) the Hoare annotation is: (let ((.cse1 (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|)) (.cse0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset))) (and (= (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|) main_~pa~0.base) (< 0 (+ (* 8 main_~i~0) |main_~#array~0.offset| 1)) (= |main_~#array~0.offset| 0) (<= |main_#t~mem16| .cse0) (= .cse1 (+ (* main_~i~0 8) |main_~#array~0.offset|)) (= (+ .cse1 4) main_~pa~0.offset) (<= .cse0 |main_#t~mem16|) (<= 9 main_~j~0) (= |main_~#array~0.base| main_~pa~0.base))) [2021-02-23 23:07:17,917 INFO L185 CegarLoopUtils]: At program point L38-2(line 38) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 10)) (.cse1 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset))) (and (= .cse0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|)) (+ (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|) 4))) (<= .cse0 .cse1) (= |main_~#array~0.offset| 0) (<= |main_#t~mem16| .cse1) (<= .cse1 .cse0) (<= 9 main_~j~0) (<= .cse1 |main_#t~mem16|))) [2021-02-23 23:07:17,917 INFO L192 CegarLoopUtils]: At program point L34(lines 34 46) the Hoare annotation is: true [2021-02-23 23:07:17,917 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 50) the Hoare annotation is: false [2021-02-23 23:07:17,917 INFO L185 CegarLoopUtils]: At program point L30(line 30) the Hoare annotation is: (let ((.cse0 (= |main_~#array~0.offset| 0))) (or (and (<= 5 main_~j~0) .cse0 (<= main_~j~0 5)) (and (<= 3 main_~j~0) .cse0 (<= main_~j~0 3)) (and (<= main_~j~0 2) .cse0 (<= 2 main_~j~0)) (and (= main_~j~0 0) .cse0) (and (<= main_~j~0 8) .cse0 (<= 8 main_~j~0)) (and (<= main_~j~0 7) (<= 7 main_~j~0) .cse0) (and .cse0 (<= 9 main_~j~0) (<= main_~j~0 9)) (and (<= main_~j~0 6) (<= 6 main_~j~0) .cse0) (and (<= 4 main_~j~0) (<= main_~j~0 4) .cse0) (and (<= 1 main_~j~0) (<= main_~j~0 1) .cse0))) [2021-02-23 23:07:17,917 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 22 52) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-23 23:07:17,917 INFO L185 CegarLoopUtils]: At program point L30-1(line 30) the Hoare annotation is: (let ((.cse0 (= |main_~#array~0.offset| 0))) (or (and (<= 5 main_~j~0) .cse0 (<= main_~j~0 5)) (and (<= 3 main_~j~0) .cse0 (<= main_~j~0 3)) (and (<= main_~j~0 2) .cse0 (<= 2 main_~j~0)) (and (= main_~j~0 0) .cse0) (and (<= main_~j~0 8) .cse0 (<= 8 main_~j~0)) (and (<= main_~j~0 7) (<= 7 main_~j~0) .cse0) (and .cse0 (<= 9 main_~j~0) (<= main_~j~0 9)) (and (<= main_~j~0 6) (<= 6 main_~j~0) .cse0) (and (<= 4 main_~j~0) (<= main_~j~0 4) .cse0) (and (<= 1 main_~j~0) (<= main_~j~0 1) .cse0))) [2021-02-23 23:07:17,917 INFO L185 CegarLoopUtils]: At program point L30-2(line 30) the Hoare annotation is: (let ((.cse0 (= |main_~#array~0.offset| 0))) (or (and (<= 5 main_~j~0) .cse0 (<= main_~j~0 5)) (and (<= 3 main_~j~0) .cse0 (<= main_~j~0 3)) (and (<= main_~j~0 2) .cse0 (<= 2 main_~j~0)) (and (= main_~j~0 0) .cse0) (and (<= main_~j~0 8) .cse0 (<= 8 main_~j~0)) (and (<= main_~j~0 7) (<= 7 main_~j~0) .cse0) (and .cse0 (<= 9 main_~j~0) (<= main_~j~0 9)) (and (<= main_~j~0 6) (<= 6 main_~j~0) .cse0) (and (<= 4 main_~j~0) (<= main_~j~0 4) .cse0) (and (<= 1 main_~j~0) (<= main_~j~0 1) .cse0))) [2021-02-23 23:07:17,917 INFO L185 CegarLoopUtils]: At program point L26(line 26) the Hoare annotation is: (= |main_~#array~0.offset| 0) [2021-02-23 23:07:17,917 INFO L185 CegarLoopUtils]: At program point L51(line 51) the Hoare annotation is: false [2021-02-23 23:07:17,918 INFO L185 CegarLoopUtils]: At program point L43(lines 23 52) the Hoare annotation is: false [2021-02-23 23:07:17,918 INFO L185 CegarLoopUtils]: At program point L39-1(lines 39 41) the Hoare annotation is: (let ((.cse3 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset))) (let ((.cse2 (= |main_#t~mem17| .cse3)) (.cse4 (= |main_~#array~0.offset| 0)) (.cse1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|)) (+ (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|) 4))) (.cse5 (<= 9 main_~j~0))) (or (let ((.cse0 (+ main_~i~0 10))) (and (<= |main_#t~mem17| .cse0) (= .cse0 .cse1) .cse2 (<= .cse0 .cse3) .cse4 .cse5)) (and .cse2 (<= .cse3 (+ main_~i~0 9)) .cse4 (= .cse3 .cse1) .cse5 (<= main_~i~0 .cse3))))) [2021-02-23 23:07:17,918 INFO L185 CegarLoopUtils]: At program point L39-2(line 39) the Hoare annotation is: (and (= main_~i~0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|)) (+ (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|) 4))) (<= main_~i~0 |main_#t~mem17|) (= |main_~#array~0.offset| 0) (<= main_~i~0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset))) [2021-02-23 23:07:17,918 INFO L185 CegarLoopUtils]: At program point L35(line 35) the Hoare annotation is: (and (< 0 (+ (* 8 main_~i~0) |main_~#array~0.offset| 1)) (= |main_~#array~0.offset| 0) (<= 9 main_~j~0)) [2021-02-23 23:07:17,918 INFO L185 CegarLoopUtils]: At program point L39-4(line 39) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|)) (+ (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|) 4))) (.cse3 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset))) (let ((.cse2 (= |main_#t~mem17| .cse3)) (.cse4 (= |main_~#array~0.offset| 0)) (.cse6 (= .cse3 .cse1)) (.cse5 (<= 9 main_~j~0))) (or (let ((.cse0 (+ main_~i~0 10))) (and (<= |main_#t~mem17| .cse0) (= .cse0 .cse1) .cse2 (<= .cse0 .cse3) .cse4 .cse5)) (and .cse2 (<= (+ main_~i~0 1) |main_#t~mem17|) .cse4 .cse6 (<= .cse3 (+ main_~i~0 8)) .cse5) (and .cse2 (<= .cse3 (+ main_~i~0 9)) (<= (+ main_~i~0 5) |main_#t~mem17|) .cse4 .cse6 .cse5)))) [2021-02-23 23:07:17,918 INFO L185 CegarLoopUtils]: At program point L35-1(line 35) the Hoare annotation is: (and (= (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|) |main_~#array~0.base|) (< 0 (+ (* 8 main_~i~0) |main_~#array~0.offset| 1)) (= |main_~#array~0.offset| 0) (= (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|) (+ (* main_~i~0 8) |main_~#array~0.offset|)) (<= 9 main_~j~0)) [2021-02-23 23:07:17,918 INFO L185 CegarLoopUtils]: At program point L39-5(lines 39 41) the Hoare annotation is: (let ((.cse3 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset)) (.cse5 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|)) (+ (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|) 4)))) (let ((.cse0 (= |main_~#array~0.offset| 0)) (.cse1 (= .cse3 .cse5)) (.cse2 (<= 9 main_~j~0))) (or (and .cse0 .cse1 .cse2 (<= main_~i~0 .cse3) (<= .cse3 (+ main_~i~0 8))) (let ((.cse4 (+ main_~i~0 10))) (and (= .cse4 .cse5) (<= .cse4 .cse3) .cse0 (<= .cse3 .cse4) .cse2)) (let ((.cse6 (+ main_~i~0 9))) (and (<= .cse6 .cse3) (<= .cse3 .cse6) .cse0 .cse1 .cse2))))) [2021-02-23 23:07:17,918 INFO L185 CegarLoopUtils]: At program point L17(lines 17 20) the Hoare annotation is: (and (= check_~pc.offset |check_#in~pc.offset|) (= check_~pc.base |check_#in~pc.base|)) [2021-02-23 23:07:17,919 INFO L185 CegarLoopUtils]: At program point L19-2(line 19) the Hoare annotation is: (let ((.cse1 (select (select |#memory_$Pointer$.base| |check_#in~pc.base|) |check_#in~pc.offset|)) (.cse0 (select (select |#memory_$Pointer$.offset| |check_#in~pc.base|) |check_#in~pc.offset|))) (and (= |check_#t~mem7.offset| .cse0) (= |check_#in~i| check_~i) (= .cse1 |check_#t~mem7.base|) (= check_~pc.offset |check_#in~pc.offset|) (= (select (select |#memory_int| .cse1) (+ .cse0 4)) |check_#t~mem8|) (= check_~pc.base |check_#in~pc.base|))) [2021-02-23 23:07:17,919 INFO L185 CegarLoopUtils]: At program point L19-3(line 19) the Hoare annotation is: (let ((.cse1 (select (select |#memory_$Pointer$.base| |check_#in~pc.base|) |check_#in~pc.offset|)) (.cse0 (select (select |#memory_$Pointer$.offset| |check_#in~pc.base|) |check_#in~pc.offset|))) (let ((.cse2 (select (select |#memory_int| .cse1) (+ .cse0 4)))) (and (= |check_#t~mem7.offset| .cse0) (= |check_#in~i| check_~i) (= .cse1 |check_#t~mem7.base|) (= check_~pc.offset |check_#in~pc.offset|) (= .cse2 |check_#t~mem8|) (= check_~pc.base |check_#in~pc.base|) (or (not (= .cse2 |check_#in~i|)) (<= 1 |check_#res|))))) [2021-02-23 23:07:17,919 INFO L192 CegarLoopUtils]: At program point checkENTRY(lines 17 20) the Hoare annotation is: true [2021-02-23 23:07:17,919 INFO L185 CegarLoopUtils]: At program point L19-4(line 19) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |check_#in~pc.base|) |check_#in~pc.offset|)) (+ (select (select |#memory_$Pointer$.offset| |check_#in~pc.base|) |check_#in~pc.offset|) 4)))) (and (= |check_#in~i| check_~i) (= check_~pc.offset |check_#in~pc.offset|) (= .cse0 |check_#t~mem8|) (= check_~pc.base |check_#in~pc.base|) (or (not (= .cse0 |check_#in~i|)) (<= 1 |check_#res|)))) [2021-02-23 23:07:17,919 INFO L185 CegarLoopUtils]: At program point checkFINAL(lines 17 20) the Hoare annotation is: (and (= |check_#in~i| check_~i) (= check_~pc.offset |check_#in~pc.offset|) (= check_~pc.base |check_#in~pc.base|) (or (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |check_#in~pc.base|) |check_#in~pc.offset|)) (+ (select (select |#memory_$Pointer$.offset| |check_#in~pc.base|) |check_#in~pc.offset|) 4)) |check_#in~i|)) (<= 1 |check_#res|))) [2021-02-23 23:07:17,919 INFO L185 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (and (= |check_#in~i| check_~i) (= check_~pc.offset |check_#in~pc.offset|) (= check_~pc.base |check_#in~pc.base|)) [2021-02-23 23:07:17,919 INFO L185 CegarLoopUtils]: At program point checkEXIT(lines 17 20) the Hoare annotation is: (and (= |check_#in~i| check_~i) (= check_~pc.offset |check_#in~pc.offset|) (= check_~pc.base |check_#in~pc.base|) (or (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |check_#in~pc.base|) |check_#in~pc.offset|)) (+ (select (select |#memory_$Pointer$.offset| |check_#in~pc.base|) |check_#in~pc.offset|) 4)) |check_#in~i|)) (<= 1 |check_#res|))) [2021-02-23 23:07:17,919 INFO L185 CegarLoopUtils]: At program point L19-1(line 19) the Hoare annotation is: (and (= |check_#t~mem7.offset| (select (select |#memory_$Pointer$.offset| |check_#in~pc.base|) |check_#in~pc.offset|)) (= |check_#in~i| check_~i) (= (select (select |#memory_$Pointer$.base| |check_#in~pc.base|) |check_#in~pc.offset|) |check_#t~mem7.base|) (= check_~pc.offset |check_#in~pc.offset|) (= check_~pc.base |check_#in~pc.base|)) [2021-02-23 23:07:17,936 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-02-23 23:07:17,937 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-02-23 23:07:17,938 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-02-23 23:07:17,938 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-02-23 23:07:17,938 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-02-23 23:07:17,939 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-02-23 23:07:17,941 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-02-23 23:07:17,941 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-02-23 23:07:17,941 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-02-23 23:07:17,941 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-02-23 23:07:17,942 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-02-23 23:07:17,942 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-02-23 23:07:17,944 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-02-23 23:07:17,945 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-02-23 23:07:17,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 11:07:17 BoogieIcfgContainer [2021-02-23 23:07:17,947 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 23:07:17,947 INFO L168 Benchmark]: Toolchain (without parser) took 107698.66 ms. Allocated memory was 155.2 MB in the beginning and 467.7 MB in the end (delta: 312.5 MB). Free memory was 131.9 MB in the beginning and 431.9 MB in the end (delta: -300.0 MB). Peak memory consumption was 276.5 MB. Max. memory is 8.0 GB. [2021-02-23 23:07:17,948 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 155.2 MB. Free memory was 130.3 MB in the beginning and 130.2 MB in the end (delta: 101.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 23:07:17,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.75 ms. Allocated memory is still 155.2 MB. Free memory was 130.7 MB in the beginning and 120.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 23:07:17,948 INFO L168 Benchmark]: Boogie Preprocessor took 52.79 ms. Allocated memory is still 155.2 MB. Free memory was 120.8 MB in the beginning and 119.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-23 23:07:17,948 INFO L168 Benchmark]: RCFGBuilder took 801.42 ms. Allocated memory is still 155.2 MB. Free memory was 119.0 MB in the beginning and 128.2 MB in the end (delta: -9.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-02-23 23:07:17,949 INFO L168 Benchmark]: TraceAbstraction took 106570.04 ms. Allocated memory was 155.2 MB in the beginning and 467.7 MB in the end (delta: 312.5 MB). Free memory was 127.7 MB in the beginning and 431.9 MB in the end (delta: -304.3 MB). Peak memory consumption was 272.4 MB. Max. memory is 8.0 GB. [2021-02-23 23:07:17,949 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 155.2 MB. Free memory was 130.3 MB in the beginning and 130.2 MB in the end (delta: 101.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 254.75 ms. Allocated memory is still 155.2 MB. Free memory was 130.7 MB in the beginning and 120.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 52.79 ms. Allocated memory is still 155.2 MB. Free memory was 120.8 MB in the beginning and 119.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 801.42 ms. Allocated memory is still 155.2 MB. Free memory was 119.0 MB in the beginning and 128.2 MB in the end (delta: -9.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 106570.04 ms. Allocated memory was 155.2 MB in the beginning and 467.7 MB in the end (delta: 312.5 MB). Free memory was 127.7 MB in the beginning and 431.9 MB in the end (delta: -304.3 MB). Peak memory consumption was 272.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (j == 0 && array == 0) || (1 <= j && array == 0) - InvariantResult [Line: 39]: Loop Invariant [2021-02-23 23:07:17,953 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-02-23 23:07:17,953 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-02-23 23:07:17,953 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-02-23 23:07:17,953 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-02-23 23:07:17,954 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-02-23 23:07:17,954 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-02-23 23:07:17,955 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-02-23 23:07:17,956 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-02-23 23:07:17,956 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-02-23 23:07:17,956 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-02-23 23:07:17,957 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-02-23 23:07:17,957 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: (((((array == 0 && unknown-#memory_int-unknown[pa][pa] == unknown-#memory_int-unknown[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + 4]) && 9 <= j) && i <= unknown-#memory_int-unknown[pa][pa]) && unknown-#memory_int-unknown[pa][pa] <= i + 8) || ((((i + 10 == unknown-#memory_int-unknown[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + 4] && i + 10 <= unknown-#memory_int-unknown[pa][pa]) && array == 0) && unknown-#memory_int-unknown[pa][pa] <= i + 10) && 9 <= j)) || ((((i + 9 <= unknown-#memory_int-unknown[pa][pa] && unknown-#memory_int-unknown[pa][pa] <= i + 9) && array == 0) && unknown-#memory_int-unknown[pa][pa] == unknown-#memory_int-unknown[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + 4]) && 9 <= j) - ProcedureContractResult [Line: 22]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 17]: Procedure Contract for check [2021-02-23 23:07:17,958 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-02-23 23:07:17,958 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-02-23 23:07:17,959 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-02-23 23:07:17,959 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived contract for procedure check: ((\old(i) == i && pc == pc) && pc == pc) && (!(unknown-#memory_int-unknown[#memory_$Pointer$[pc][pc]][#memory_$Pointer$[pc][pc] + 4] == \old(i)) || 1 <= \result) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 99.6s, OverallIterations: 22, TraceHistogramMax: 12, AutomataDifference: 54.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1624 SDtfs, 3120 SDslu, 19183 SDs, 0 SdLazy, 21725 SolverSat, 430 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1259 GetRequests, 155 SyntacticMatches, 5 SemanticMatches, 1099 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20424 ImplicationChecksByTransitivity, 64.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 22 MinimizatonAttempts, 102 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 83 LocationsWithAnnotation, 272 PreInvPairs, 459 NumberOfFragments, 3452 HoareAnnotationTreeSize, 272 FomulaSimplifications, 116872 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 83 FomulaSimplificationsInter, 18044 FormulaSimplificationTreeSizeReductionInter, 5.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 40.6s InterpolantComputationTime, 3012 NumberOfCodeBlocks, 3012 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2990 ConstructedInterpolants, 0 QuantifiedInterpolants, 6552542 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 2 PerfectInterpolantSequences, 1724/7523 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...