/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/Addition03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 22:00:05,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:00:05,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:00:05,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 22:00:05,686 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 22:00:05,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 22:00:05,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 22:00:05,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 22:00:05,694 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 22:00:05,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 22:00:05,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 22:00:05,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2020-11-06 22:00:05,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:00:05,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:00:05,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:00:05,774 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-06 22:00:05,832 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:00:05,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:00:05,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:00:05,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:00:05,836 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:00:05,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:00:05,837 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:00:05,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:00:05,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:00:05,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:00:05,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:00:05,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:00:05,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:00:05,840 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:00:05,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:00:05,840 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:00:05,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:00:05,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:00:05,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:00:05,841 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:00:05,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:00:05,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:00:05,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:00:05,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:00:05,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:00:05,843 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:00:05,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:00:05,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:00:05,843 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:00:05,844 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:00:06,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:00:06,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:00:06,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:00:06,255 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:00:06,256 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:00:06,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Addition03-1.c [2020-11-06 22:00:06,329 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52bc05ddb/755389945b334034af85714a7555ad86/FLAG7c1d37052 [2020-11-06 22:00:06,938 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:00:06,939 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/Addition03-1.c [2020-11-06 22:00:06,947 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52bc05ddb/755389945b334034af85714a7555ad86/FLAG7c1d37052 [2020-11-06 22:00:07,300 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52bc05ddb/755389945b334034af85714a7555ad86 [2020-11-06 22:00:07,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:00:07,314 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:00:07,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:00:07,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:00:07,320 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:00:07,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:00:07" (1/1) ... [2020-11-06 22:00:07,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2da04b05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:07, skipping insertion in model container [2020-11-06 22:00:07,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:00:07" (1/1) ... [2020-11-06 22:00:07,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:00:07,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:00:07,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:00:07,550 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:00:07,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:00:07,581 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:00:07,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:07 WrapperNode [2020-11-06 22:00:07,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:00:07,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:00:07,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:00:07,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:00:07,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:07" (1/1) ... [2020-11-06 22:00:07,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:07" (1/1) ... [2020-11-06 22:00:07,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:07" (1/1) ... [2020-11-06 22:00:07,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:07" (1/1) ... [2020-11-06 22:00:07,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:07" (1/1) ... [2020-11-06 22:00:07,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:07" (1/1) ... [2020-11-06 22:00:07,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:07" (1/1) ... [2020-11-06 22:00:07,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:00:07,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:00:07,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:00:07,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:00:07,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:07" (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 [2020-11-06 22:00:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:00:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:00:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:00:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-11-06 22:00:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:00:07,680 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:00:07,680 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:00:07,680 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:00:07,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:00:07,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 22:00:07,681 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-11-06 22:00:07,681 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:00:07,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:00:07,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:00:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:00:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:00:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:00:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:00:07,906 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:00:07,906 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-06 22:00:07,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:00:07 BoogieIcfgContainer [2020-11-06 22:00:07,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:00:07,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:00:07,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:00:07,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:00:07,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:00:07" (1/3) ... [2020-11-06 22:00:07,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372e6907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:00:07, skipping insertion in model container [2020-11-06 22:00:07,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:07" (2/3) ... [2020-11-06 22:00:07,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372e6907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:00:07, skipping insertion in model container [2020-11-06 22:00:07,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:00:07" (3/3) ... [2020-11-06 22:00:07,918 INFO L111 eAbstractionObserver]: Analyzing ICFG Addition03-1.c [2020-11-06 22:00:07,936 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:00:07,945 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:00:07,980 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:00:08,031 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:00:08,031 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:00:08,031 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:00:08,031 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:00:08,032 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:00:08,032 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:00:08,032 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:00:08,032 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:00:08,050 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-11-06 22:00:08,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-06 22:00:08,055 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:08,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:08,056 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:08,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:08,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1428447986, now seen corresponding path program 1 times [2020-11-06 22:00:08,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:08,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317473078] [2020-11-06 22:00:08,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:08,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:08,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:08,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:08,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:00:08,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317473078] [2020-11-06 22:00:08,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:00:08,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-06 22:00:08,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724334524] [2020-11-06 22:00:08,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-06 22:00:08,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:08,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-06 22:00:08,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-06 22:00:08,460 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 6 states. [2020-11-06 22:00:08,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:08,786 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2020-11-06 22:00:08,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-06 22:00:08,788 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-06 22:00:08,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:08,797 INFO L225 Difference]: With dead ends: 42 [2020-11-06 22:00:08,797 INFO L226 Difference]: Without dead ends: 24 [2020-11-06 22:00:08,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:00:08,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-11-06 22:00:08,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-11-06 22:00:08,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-11-06 22:00:08,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2020-11-06 22:00:08,849 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 15 [2020-11-06 22:00:08,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:08,849 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2020-11-06 22:00:08,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-06 22:00:08,849 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2020-11-06 22:00:08,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-06 22:00:08,852 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:08,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:08,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:00:08,852 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:08,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:08,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1220433035, now seen corresponding path program 1 times [2020-11-06 22:00:08,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:08,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523402678] [2020-11-06 22:00:08,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:08,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:08,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:08,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:00:08,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523402678] [2020-11-06 22:00:08,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:00:08,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-06 22:00:08,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666294196] [2020-11-06 22:00:08,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-06 22:00:08,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:08,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-06 22:00:08,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-06 22:00:08,960 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand 5 states. [2020-11-06 22:00:09,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:09,114 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2020-11-06 22:00:09,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 22:00:09,115 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-06 22:00:09,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:09,116 INFO L225 Difference]: With dead ends: 35 [2020-11-06 22:00:09,116 INFO L226 Difference]: Without dead ends: 26 [2020-11-06 22:00:09,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-06 22:00:09,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-11-06 22:00:09,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2020-11-06 22:00:09,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-11-06 22:00:09,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2020-11-06 22:00:09,131 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 17 [2020-11-06 22:00:09,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:09,131 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2020-11-06 22:00:09,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-06 22:00:09,132 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2020-11-06 22:00:09,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-06 22:00:09,133 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:09,133 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:09,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 22:00:09,134 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:09,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:09,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1999542133, now seen corresponding path program 1 times [2020-11-06 22:00:09,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:09,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760784505] [2020-11-06 22:00:09,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:09,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:09,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:09,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:09,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:09,264 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-06 22:00:09,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760784505] [2020-11-06 22:00:09,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502347799] [2020-11-06 22:00:09,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:09,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-06 22:00:09,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:09,421 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-06 22:00:09,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:09,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2020-11-06 22:00:09,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180232973] [2020-11-06 22:00:09,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-06 22:00:09,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:09,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-06 22:00:09,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:00:09,424 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 9 states. [2020-11-06 22:00:09,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:09,846 INFO L93 Difference]: Finished difference Result 55 states and 75 transitions. [2020-11-06 22:00:09,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-06 22:00:09,846 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-11-06 22:00:09,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:09,848 INFO L225 Difference]: With dead ends: 55 [2020-11-06 22:00:09,848 INFO L226 Difference]: Without dead ends: 36 [2020-11-06 22:00:09,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-11-06 22:00:09,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-06 22:00:09,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2020-11-06 22:00:09,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-06 22:00:09,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2020-11-06 22:00:09,862 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 22 [2020-11-06 22:00:09,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:09,862 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2020-11-06 22:00:09,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-06 22:00:09,863 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2020-11-06 22:00:09,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-06 22:00:09,864 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:09,864 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:10,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-06 22:00:10,080 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:10,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:10,082 INFO L82 PathProgramCache]: Analyzing trace with hash 130196988, now seen corresponding path program 2 times [2020-11-06 22:00:10,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:10,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086737413] [2020-11-06 22:00:10,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:10,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:10,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:10,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:10,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:10,247 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-06 22:00:10,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086737413] [2020-11-06 22:00:10,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294268997] [2020-11-06 22:00:10,248 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:10,300 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-06 22:00:10,301 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:00:10,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-06 22:00:10,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:10,358 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-06 22:00:10,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:10,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2020-11-06 22:00:10,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248886590] [2020-11-06 22:00:10,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:00:10,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:10,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:00:10,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:00:10,361 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 10 states. [2020-11-06 22:00:10,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:10,822 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-11-06 22:00:10,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-06 22:00:10,823 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2020-11-06 22:00:10,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:10,825 INFO L225 Difference]: With dead ends: 44 [2020-11-06 22:00:10,825 INFO L226 Difference]: Without dead ends: 39 [2020-11-06 22:00:10,826 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-11-06 22:00:10,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-06 22:00:10,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2020-11-06 22:00:10,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-06 22:00:10,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2020-11-06 22:00:10,836 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 29 [2020-11-06 22:00:10,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:10,836 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2020-11-06 22:00:10,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:00:10,837 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2020-11-06 22:00:10,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-06 22:00:10,838 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:10,838 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:11,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:11,052 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:11,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:11,053 INFO L82 PathProgramCache]: Analyzing trace with hash 939869469, now seen corresponding path program 3 times [2020-11-06 22:00:11,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:11,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458301481] [2020-11-06 22:00:11,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:11,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:11,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:11,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:11,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:11,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:11,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:11,245 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-06 22:00:11,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458301481] [2020-11-06 22:00:11,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392416212] [2020-11-06 22:00:11,246 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:11,309 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-11-06 22:00:11,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:00:11,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-06 22:00:11,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:11,373 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-06 22:00:11,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:11,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 11 [2020-11-06 22:00:11,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203235061] [2020-11-06 22:00:11,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-06 22:00:11,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:11,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-06 22:00:11,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-11-06 22:00:11,377 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand 11 states. [2020-11-06 22:00:11,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:11,928 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2020-11-06 22:00:11,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-06 22:00:11,931 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 36 [2020-11-06 22:00:11,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:11,933 INFO L225 Difference]: With dead ends: 47 [2020-11-06 22:00:11,936 INFO L226 Difference]: Without dead ends: 42 [2020-11-06 22:00:11,940 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2020-11-06 22:00:11,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-06 22:00:11,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2020-11-06 22:00:11,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-06 22:00:11,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-11-06 22:00:11,957 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 36 [2020-11-06 22:00:11,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:11,957 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-11-06 22:00:11,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-06 22:00:11,957 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-11-06 22:00:11,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-06 22:00:11,959 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:11,960 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:12,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:12,162 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:12,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:12,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1946201066, now seen corresponding path program 4 times [2020-11-06 22:00:12,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:12,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793197161] [2020-11-06 22:00:12,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:12,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:12,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:12,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:12,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:12,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:12,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:12,392 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-11-06 22:00:12,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793197161] [2020-11-06 22:00:12,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632369909] [2020-11-06 22:00:12,393 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:12,476 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-06 22:00:12,477 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:00:12,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-06 22:00:12,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:12,547 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-11-06 22:00:12,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:12,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 12 [2020-11-06 22:00:12,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365514742] [2020-11-06 22:00:12,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-06 22:00:12,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:12,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-06 22:00:12,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-11-06 22:00:12,550 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 12 states. [2020-11-06 22:00:13,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:13,177 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2020-11-06 22:00:13,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-06 22:00:13,178 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 43 [2020-11-06 22:00:13,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:13,180 INFO L225 Difference]: With dead ends: 50 [2020-11-06 22:00:13,180 INFO L226 Difference]: Without dead ends: 45 [2020-11-06 22:00:13,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-11-06 22:00:13,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-06 22:00:13,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2020-11-06 22:00:13,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-11-06 22:00:13,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2020-11-06 22:00:13,191 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 43 [2020-11-06 22:00:13,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:13,192 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2020-11-06 22:00:13,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-06 22:00:13,192 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2020-11-06 22:00:13,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-06 22:00:13,193 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:13,194 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:13,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:13,407 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:13,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:13,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1769247919, now seen corresponding path program 5 times [2020-11-06 22:00:13,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:13,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105111654] [2020-11-06 22:00:13,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:13,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:13,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:13,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:13,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:13,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:13,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:13,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:13,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:13,632 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-11-06 22:00:13,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105111654] [2020-11-06 22:00:13,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112215326] [2020-11-06 22:00:13,633 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:13,709 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2020-11-06 22:00:13,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:00:13,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-06 22:00:13,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:13,810 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-11-06 22:00:13,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:13,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 13 [2020-11-06 22:00:13,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499315610] [2020-11-06 22:00:13,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-06 22:00:13,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:13,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-06 22:00:13,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-11-06 22:00:13,819 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand 13 states. [2020-11-06 22:00:14,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:14,505 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2020-11-06 22:00:14,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-06 22:00:14,505 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 50 [2020-11-06 22:00:14,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:14,507 INFO L225 Difference]: With dead ends: 53 [2020-11-06 22:00:14,507 INFO L226 Difference]: Without dead ends: 48 [2020-11-06 22:00:14,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=168, Invalid=384, Unknown=0, NotChecked=0, Total=552 [2020-11-06 22:00:14,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-11-06 22:00:14,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2020-11-06 22:00:14,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-11-06 22:00:14,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2020-11-06 22:00:14,518 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 50 [2020-11-06 22:00:14,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:14,518 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2020-11-06 22:00:14,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-06 22:00:14,519 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2020-11-06 22:00:14,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-06 22:00:14,521 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:14,521 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:14,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-11-06 22:00:14,727 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:14,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:14,728 INFO L82 PathProgramCache]: Analyzing trace with hash -2139566376, now seen corresponding path program 6 times [2020-11-06 22:00:14,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:14,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599982541] [2020-11-06 22:00:14,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:14,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:14,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:14,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:14,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:14,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:14,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:14,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:15,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:15,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:15,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:15,077 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-11-06 22:00:15,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599982541] [2020-11-06 22:00:15,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508893431] [2020-11-06 22:00:15,079 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:15,163 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2020-11-06 22:00:15,164 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:00:15,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-06 22:00:15,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:15,245 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-11-06 22:00:15,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:15,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 14 [2020-11-06 22:00:15,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054181499] [2020-11-06 22:00:15,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-06 22:00:15,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:15,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-06 22:00:15,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-11-06 22:00:15,248 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand 14 states. [2020-11-06 22:00:15,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:15,996 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2020-11-06 22:00:15,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-06 22:00:15,997 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 57 [2020-11-06 22:00:15,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:15,998 INFO L225 Difference]: With dead ends: 56 [2020-11-06 22:00:15,998 INFO L226 Difference]: Without dead ends: 51 [2020-11-06 22:00:15,999 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=200, Invalid=450, Unknown=0, NotChecked=0, Total=650 [2020-11-06 22:00:16,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-06 22:00:16,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2020-11-06 22:00:16,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-11-06 22:00:16,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2020-11-06 22:00:16,009 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 57 [2020-11-06 22:00:16,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:16,010 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2020-11-06 22:00:16,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-06 22:00:16,010 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2020-11-06 22:00:16,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-11-06 22:00:16,012 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:16,012 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:16,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:16,227 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:16,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:16,229 INFO L82 PathProgramCache]: Analyzing trace with hash -2123614399, now seen corresponding path program 7 times [2020-11-06 22:00:16,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:16,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434219341] [2020-11-06 22:00:16,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:16,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:16,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:16,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:16,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:16,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:16,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:16,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:16,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:16,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:16,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:16,524 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-11-06 22:00:16,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434219341] [2020-11-06 22:00:16,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987925801] [2020-11-06 22:00:16,525 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:16,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-06 22:00:16,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:16,709 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-11-06 22:00:16,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:16,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 15 [2020-11-06 22:00:16,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020434494] [2020-11-06 22:00:16,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-06 22:00:16,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:16,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-06 22:00:16,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-11-06 22:00:16,715 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand 15 states. [2020-11-06 22:00:17,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:17,427 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2020-11-06 22:00:17,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-06 22:00:17,428 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 64 [2020-11-06 22:00:17,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:17,430 INFO L225 Difference]: With dead ends: 59 [2020-11-06 22:00:17,430 INFO L226 Difference]: Without dead ends: 54 [2020-11-06 22:00:17,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=235, Invalid=521, Unknown=0, NotChecked=0, Total=756 [2020-11-06 22:00:17,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-06 22:00:17,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2020-11-06 22:00:17,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-06 22:00:17,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2020-11-06 22:00:17,442 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 64 [2020-11-06 22:00:17,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:17,442 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2020-11-06 22:00:17,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-06 22:00:17,442 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2020-11-06 22:00:17,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-11-06 22:00:17,444 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:17,444 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:17,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:17,658 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:17,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:17,660 INFO L82 PathProgramCache]: Analyzing trace with hash 154021574, now seen corresponding path program 8 times [2020-11-06 22:00:17,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:17,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319369171] [2020-11-06 22:00:17,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:17,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:17,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:17,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:17,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:17,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:17,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:17,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:17,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:17,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:17,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:18,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:18,060 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2020-11-06 22:00:18,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319369171] [2020-11-06 22:00:18,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906787697] [2020-11-06 22:00:18,061 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:18,149 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-06 22:00:18,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:00:18,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 20 conjunts are in the unsatisfiable core [2020-11-06 22:00:18,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:18,241 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2020-11-06 22:00:18,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:18,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 16 [2020-11-06 22:00:18,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048193865] [2020-11-06 22:00:18,243 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-06 22:00:18,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:18,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-06 22:00:18,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-11-06 22:00:18,244 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand 16 states. [2020-11-06 22:00:19,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:19,035 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2020-11-06 22:00:19,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-06 22:00:19,036 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 71 [2020-11-06 22:00:19,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:19,037 INFO L225 Difference]: With dead ends: 62 [2020-11-06 22:00:19,037 INFO L226 Difference]: Without dead ends: 57 [2020-11-06 22:00:19,039 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=273, Invalid=597, Unknown=0, NotChecked=0, Total=870 [2020-11-06 22:00:19,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-11-06 22:00:19,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2020-11-06 22:00:19,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-11-06 22:00:19,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 63 transitions. [2020-11-06 22:00:19,062 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 63 transitions. Word has length 71 [2020-11-06 22:00:19,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:19,062 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 63 transitions. [2020-11-06 22:00:19,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-06 22:00:19,062 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 63 transitions. [2020-11-06 22:00:19,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-11-06 22:00:19,064 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:19,065 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:19,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-06 22:00:19,266 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:19,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:19,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1310264531, now seen corresponding path program 9 times [2020-11-06 22:00:19,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:19,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077584455] [2020-11-06 22:00:19,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:19,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:19,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:19,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:19,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:19,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:19,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:19,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:19,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:19,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:19,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:19,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:19,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:19,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:19,715 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2020-11-06 22:00:19,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077584455] [2020-11-06 22:00:19,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265206254] [2020-11-06 22:00:19,716 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:19,817 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2020-11-06 22:00:19,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:00:19,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 22 conjunts are in the unsatisfiable core [2020-11-06 22:00:19,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:19,901 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2020-11-06 22:00:19,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:19,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 17 [2020-11-06 22:00:19,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202678219] [2020-11-06 22:00:19,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-06 22:00:19,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:19,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-06 22:00:19,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-11-06 22:00:19,903 INFO L87 Difference]: Start difference. First operand 55 states and 63 transitions. Second operand 17 states. [2020-11-06 22:00:20,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:20,695 INFO L93 Difference]: Finished difference Result 65 states and 75 transitions. [2020-11-06 22:00:20,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-06 22:00:20,695 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 78 [2020-11-06 22:00:20,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:20,697 INFO L225 Difference]: With dead ends: 65 [2020-11-06 22:00:20,697 INFO L226 Difference]: Without dead ends: 60 [2020-11-06 22:00:20,698 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=314, Invalid=678, Unknown=0, NotChecked=0, Total=992 [2020-11-06 22:00:20,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-11-06 22:00:20,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2020-11-06 22:00:20,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-11-06 22:00:20,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 66 transitions. [2020-11-06 22:00:20,712 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 66 transitions. Word has length 78 [2020-11-06 22:00:20,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:20,716 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 66 transitions. [2020-11-06 22:00:20,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-06 22:00:20,717 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 66 transitions. [2020-11-06 22:00:20,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-11-06 22:00:20,746 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:20,746 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:20,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:20,961 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:20,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:20,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1958483020, now seen corresponding path program 10 times [2020-11-06 22:00:20,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:20,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538562641] [2020-11-06 22:00:20,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:21,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:21,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:21,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:21,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:21,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:21,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:21,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:21,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:21,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:21,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:21,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:21,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:21,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:21,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:21,402 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2020-11-06 22:00:21,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538562641] [2020-11-06 22:00:21,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118276729] [2020-11-06 22:00:21,402 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:21,482 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-06 22:00:21,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:00:21,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 24 conjunts are in the unsatisfiable core [2020-11-06 22:00:21,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:21,591 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2020-11-06 22:00:21,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:21,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 18 [2020-11-06 22:00:21,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440705949] [2020-11-06 22:00:21,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-06 22:00:21,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:21,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-06 22:00:21,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2020-11-06 22:00:21,594 INFO L87 Difference]: Start difference. First operand 58 states and 66 transitions. Second operand 18 states. [2020-11-06 22:00:22,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:22,526 INFO L93 Difference]: Finished difference Result 68 states and 78 transitions. [2020-11-06 22:00:22,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-06 22:00:22,527 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 85 [2020-11-06 22:00:22,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:22,529 INFO L225 Difference]: With dead ends: 68 [2020-11-06 22:00:22,529 INFO L226 Difference]: Without dead ends: 63 [2020-11-06 22:00:22,530 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=358, Invalid=764, Unknown=0, NotChecked=0, Total=1122 [2020-11-06 22:00:22,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-11-06 22:00:22,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2020-11-06 22:00:22,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-11-06 22:00:22,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions. [2020-11-06 22:00:22,546 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 69 transitions. Word has length 85 [2020-11-06 22:00:22,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:22,546 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 69 transitions. [2020-11-06 22:00:22,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-11-06 22:00:22,547 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 69 transitions. [2020-11-06 22:00:22,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-11-06 22:00:22,549 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:22,550 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:22,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:22,751 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:22,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:22,752 INFO L82 PathProgramCache]: Analyzing trace with hash 830993765, now seen corresponding path program 11 times [2020-11-06 22:00:22,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:22,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479434163] [2020-11-06 22:00:22,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:22,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:22,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:22,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:22,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:22,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:22,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:23,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:23,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:23,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:23,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:23,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:23,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:23,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:23,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:23,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:23,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:23,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:23,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:23,303 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2020-11-06 22:00:23,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479434163] [2020-11-06 22:00:23,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525963470] [2020-11-06 22:00:23,304 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:23,387 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2020-11-06 22:00:23,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:00:23,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 26 conjunts are in the unsatisfiable core [2020-11-06 22:00:23,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:23,495 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2020-11-06 22:00:23,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:23,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 19 [2020-11-06 22:00:23,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912376622] [2020-11-06 22:00:23,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-11-06 22:00:23,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:23,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-11-06 22:00:23,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-11-06 22:00:23,501 INFO L87 Difference]: Start difference. First operand 61 states and 69 transitions. Second operand 19 states. [2020-11-06 22:00:24,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:24,407 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2020-11-06 22:00:24,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-06 22:00:24,408 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 92 [2020-11-06 22:00:24,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:24,410 INFO L225 Difference]: With dead ends: 71 [2020-11-06 22:00:24,410 INFO L226 Difference]: Without dead ends: 66 [2020-11-06 22:00:24,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=405, Invalid=855, Unknown=0, NotChecked=0, Total=1260 [2020-11-06 22:00:24,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-11-06 22:00:24,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2020-11-06 22:00:24,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-11-06 22:00:24,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2020-11-06 22:00:24,426 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 92 [2020-11-06 22:00:24,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:24,427 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2020-11-06 22:00:24,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-11-06 22:00:24,427 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2020-11-06 22:00:24,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-11-06 22:00:24,431 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:24,431 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:24,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-11-06 22:00:24,645 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:24,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:24,646 INFO L82 PathProgramCache]: Analyzing trace with hash 2063410594, now seen corresponding path program 12 times [2020-11-06 22:00:24,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:24,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474143356] [2020-11-06 22:00:24,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:24,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:24,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:24,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:24,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:24,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:24,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:24,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:24,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:24,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:24,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:24,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:24,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:24,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:24,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:25,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:25,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:25,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:25,141 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2020-11-06 22:00:25,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474143356] [2020-11-06 22:00:25,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120306559] [2020-11-06 22:00:25,142 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:25,236 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2020-11-06 22:00:25,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:00:25,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 28 conjunts are in the unsatisfiable core [2020-11-06 22:00:25,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:25,328 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2020-11-06 22:00:25,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:25,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 20 [2020-11-06 22:00:25,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515609707] [2020-11-06 22:00:25,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-11-06 22:00:25,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:25,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-11-06 22:00:25,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=251, Unknown=0, NotChecked=0, Total=380 [2020-11-06 22:00:25,331 INFO L87 Difference]: Start difference. First operand 64 states and 72 transitions. Second operand 20 states. [2020-11-06 22:00:26,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:26,339 INFO L93 Difference]: Finished difference Result 74 states and 84 transitions. [2020-11-06 22:00:26,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-11-06 22:00:26,340 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 99 [2020-11-06 22:00:26,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:26,341 INFO L225 Difference]: With dead ends: 74 [2020-11-06 22:00:26,341 INFO L226 Difference]: Without dead ends: 69 [2020-11-06 22:00:26,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=455, Invalid=951, Unknown=0, NotChecked=0, Total=1406 [2020-11-06 22:00:26,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-11-06 22:00:26,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2020-11-06 22:00:26,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-11-06 22:00:26,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 75 transitions. [2020-11-06 22:00:26,349 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 75 transitions. Word has length 99 [2020-11-06 22:00:26,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:26,350 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 75 transitions. [2020-11-06 22:00:26,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-11-06 22:00:26,350 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 75 transitions. [2020-11-06 22:00:26,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-11-06 22:00:26,351 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:26,351 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:26,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-11-06 22:00:26,565 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:26,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:26,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1269158135, now seen corresponding path program 13 times [2020-11-06 22:00:26,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:26,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276420632] [2020-11-06 22:00:26,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:26,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:26,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:26,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:26,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:26,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:26,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:26,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:26,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:26,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:26,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:26,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:26,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:26,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:26,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:26,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:26,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:27,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:27,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:27,121 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2020-11-06 22:00:27,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276420632] [2020-11-06 22:00:27,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703097799] [2020-11-06 22:00:27,121 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:27,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 30 conjunts are in the unsatisfiable core [2020-11-06 22:00:27,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:27,296 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2020-11-06 22:00:27,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:27,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 21 [2020-11-06 22:00:27,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839786923] [2020-11-06 22:00:27,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-11-06 22:00:27,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:27,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-11-06 22:00:27,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=275, Unknown=0, NotChecked=0, Total=420 [2020-11-06 22:00:27,300 INFO L87 Difference]: Start difference. First operand 67 states and 75 transitions. Second operand 21 states. [2020-11-06 22:00:28,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:28,351 INFO L93 Difference]: Finished difference Result 77 states and 87 transitions. [2020-11-06 22:00:28,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-11-06 22:00:28,351 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 106 [2020-11-06 22:00:28,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:28,353 INFO L225 Difference]: With dead ends: 77 [2020-11-06 22:00:28,353 INFO L226 Difference]: Without dead ends: 72 [2020-11-06 22:00:28,355 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=508, Invalid=1052, Unknown=0, NotChecked=0, Total=1560 [2020-11-06 22:00:28,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-11-06 22:00:28,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2020-11-06 22:00:28,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-11-06 22:00:28,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 78 transitions. [2020-11-06 22:00:28,361 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 78 transitions. Word has length 106 [2020-11-06 22:00:28,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:28,362 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 78 transitions. [2020-11-06 22:00:28,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-11-06 22:00:28,362 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 78 transitions. [2020-11-06 22:00:28,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-11-06 22:00:28,363 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:28,364 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:28,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-11-06 22:00:28,579 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:28,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:28,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1715667824, now seen corresponding path program 14 times [2020-11-06 22:00:28,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:28,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513886099] [2020-11-06 22:00:28,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:28,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:28,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:28,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:28,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:28,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:28,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:28,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:28,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:28,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:28,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:28,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:28,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:28,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:28,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:28,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:28,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:28,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:29,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:29,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:29,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:29,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:29,219 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2020-11-06 22:00:29,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513886099] [2020-11-06 22:00:29,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424654367] [2020-11-06 22:00:29,220 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:29,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-06 22:00:29,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:00:29,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 32 conjunts are in the unsatisfiable core [2020-11-06 22:00:29,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:29,415 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2020-11-06 22:00:29,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:29,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 22 [2020-11-06 22:00:29,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485091830] [2020-11-06 22:00:29,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-06 22:00:29,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:29,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-06 22:00:29,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=300, Unknown=0, NotChecked=0, Total=462 [2020-11-06 22:00:29,417 INFO L87 Difference]: Start difference. First operand 70 states and 78 transitions. Second operand 22 states. [2020-11-06 22:00:30,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:30,564 INFO L93 Difference]: Finished difference Result 80 states and 90 transitions. [2020-11-06 22:00:30,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-11-06 22:00:30,565 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 113 [2020-11-06 22:00:30,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:30,567 INFO L225 Difference]: With dead ends: 80 [2020-11-06 22:00:30,567 INFO L226 Difference]: Without dead ends: 75 [2020-11-06 22:00:30,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=564, Invalid=1158, Unknown=0, NotChecked=0, Total=1722 [2020-11-06 22:00:30,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-11-06 22:00:30,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2020-11-06 22:00:30,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-11-06 22:00:30,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 81 transitions. [2020-11-06 22:00:30,574 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 81 transitions. Word has length 113 [2020-11-06 22:00:30,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:30,575 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 81 transitions. [2020-11-06 22:00:30,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-11-06 22:00:30,575 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 81 transitions. [2020-11-06 22:00:30,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-11-06 22:00:30,576 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:30,577 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:30,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:30,791 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:30,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:30,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1539342455, now seen corresponding path program 15 times [2020-11-06 22:00:30,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:30,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035588127] [2020-11-06 22:00:30,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:30,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:30,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:30,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:30,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:30,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:30,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:31,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:31,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:31,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:31,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:31,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:31,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:31,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:31,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:31,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:31,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:31,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:31,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:31,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:31,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:31,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:31,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:31,512 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2020-11-06 22:00:31,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035588127] [2020-11-06 22:00:31,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603817490] [2020-11-06 22:00:31,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:31,618 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2020-11-06 22:00:31,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:00:31,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 34 conjunts are in the unsatisfiable core [2020-11-06 22:00:31,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:31,763 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2020-11-06 22:00:31,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:31,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 23 [2020-11-06 22:00:31,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603061920] [2020-11-06 22:00:31,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-06 22:00:31,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:31,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-06 22:00:31,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=326, Unknown=0, NotChecked=0, Total=506 [2020-11-06 22:00:31,767 INFO L87 Difference]: Start difference. First operand 73 states and 81 transitions. Second operand 23 states. [2020-11-06 22:00:32,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:32,961 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2020-11-06 22:00:32,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-11-06 22:00:32,962 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 120 [2020-11-06 22:00:32,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:32,964 INFO L225 Difference]: With dead ends: 83 [2020-11-06 22:00:32,964 INFO L226 Difference]: Without dead ends: 78 [2020-11-06 22:00:32,965 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=623, Invalid=1269, Unknown=0, NotChecked=0, Total=1892 [2020-11-06 22:00:32,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-11-06 22:00:32,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2020-11-06 22:00:32,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-11-06 22:00:32,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2020-11-06 22:00:32,972 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 120 [2020-11-06 22:00:32,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:32,972 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2020-11-06 22:00:32,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-11-06 22:00:32,972 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2020-11-06 22:00:32,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-11-06 22:00:32,974 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:32,974 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:33,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-11-06 22:00:33,190 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:33,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:33,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1275498622, now seen corresponding path program 16 times [2020-11-06 22:00:33,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:33,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752263566] [2020-11-06 22:00:33,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:33,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:33,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:33,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:33,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:33,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:33,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:33,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:33,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:33,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:33,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:33,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:33,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:33,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:33,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:33,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:33,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:33,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:33,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:33,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:33,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:33,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:33,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:34,070 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2020-11-06 22:00:34,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752263566] [2020-11-06 22:00:34,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646030024] [2020-11-06 22:00:34,071 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:34,165 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-06 22:00:34,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:00:34,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 36 conjunts are in the unsatisfiable core [2020-11-06 22:00:34,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:34,271 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2020-11-06 22:00:34,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:34,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21] total 24 [2020-11-06 22:00:34,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267776676] [2020-11-06 22:00:34,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-11-06 22:00:34,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:34,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-11-06 22:00:34,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=353, Unknown=0, NotChecked=0, Total=552 [2020-11-06 22:00:34,273 INFO L87 Difference]: Start difference. First operand 76 states and 84 transitions. Second operand 24 states. [2020-11-06 22:00:35,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:35,499 INFO L93 Difference]: Finished difference Result 86 states and 96 transitions. [2020-11-06 22:00:35,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-06 22:00:35,501 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 127 [2020-11-06 22:00:35,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:35,502 INFO L225 Difference]: With dead ends: 86 [2020-11-06 22:00:35,502 INFO L226 Difference]: Without dead ends: 81 [2020-11-06 22:00:35,505 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=685, Invalid=1385, Unknown=0, NotChecked=0, Total=2070 [2020-11-06 22:00:35,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-11-06 22:00:35,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2020-11-06 22:00:35,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-11-06 22:00:35,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2020-11-06 22:00:35,514 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 127 [2020-11-06 22:00:35,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:35,515 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2020-11-06 22:00:35,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-11-06 22:00:35,515 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2020-11-06 22:00:35,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-11-06 22:00:35,521 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:35,521 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:35,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-11-06 22:00:35,738 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:35,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:35,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1426186523, now seen corresponding path program 17 times [2020-11-06 22:00:35,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:35,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250954917] [2020-11-06 22:00:35,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:35,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:35,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:35,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:35,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:35,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:35,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:35,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:36,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:36,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:36,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:36,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:36,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:36,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:36,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:36,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:36,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:36,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:36,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:36,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:36,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:36,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:36,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:36,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:36,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2020-11-06 22:00:36,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250954917] [2020-11-06 22:00:36,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112571673] [2020-11-06 22:00:36,611 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:36,721 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2020-11-06 22:00:36,722 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:00:36,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 38 conjunts are in the unsatisfiable core [2020-11-06 22:00:36,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:36,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2020-11-06 22:00:36,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:36,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 25 [2020-11-06 22:00:36,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334426500] [2020-11-06 22:00:36,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-11-06 22:00:36,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:36,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-11-06 22:00:36,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=381, Unknown=0, NotChecked=0, Total=600 [2020-11-06 22:00:36,841 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand 25 states. [2020-11-06 22:00:38,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:38,127 INFO L93 Difference]: Finished difference Result 89 states and 99 transitions. [2020-11-06 22:00:38,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-06 22:00:38,128 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 134 [2020-11-06 22:00:38,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:38,129 INFO L225 Difference]: With dead ends: 89 [2020-11-06 22:00:38,130 INFO L226 Difference]: Without dead ends: 84 [2020-11-06 22:00:38,131 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=750, Invalid=1506, Unknown=0, NotChecked=0, Total=2256 [2020-11-06 22:00:38,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-11-06 22:00:38,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2020-11-06 22:00:38,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-11-06 22:00:38,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2020-11-06 22:00:38,137 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 134 [2020-11-06 22:00:38,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:38,137 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2020-11-06 22:00:38,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-11-06 22:00:38,138 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2020-11-06 22:00:38,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-11-06 22:00:38,139 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:38,139 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:38,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:38,345 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:38,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:38,346 INFO L82 PathProgramCache]: Analyzing trace with hash -277020308, now seen corresponding path program 18 times [2020-11-06 22:00:38,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:38,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634394210] [2020-11-06 22:00:38,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:38,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:38,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:38,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:38,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:38,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:38,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:38,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:38,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:38,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:38,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:38,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:38,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:38,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:38,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:38,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:38,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:38,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:38,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:38,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:38,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:38,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:39,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:39,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:39,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:39,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:39,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:39,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:39,292 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2020-11-06 22:00:39,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634394210] [2020-11-06 22:00:39,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104792555] [2020-11-06 22:00:39,293 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:39,419 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2020-11-06 22:00:39,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:00:39,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 40 conjunts are in the unsatisfiable core [2020-11-06 22:00:39,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:39,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2020-11-06 22:00:39,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:39,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 26 [2020-11-06 22:00:39,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227598132] [2020-11-06 22:00:39,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-11-06 22:00:39,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:39,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-11-06 22:00:39,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=410, Unknown=0, NotChecked=0, Total=650 [2020-11-06 22:00:39,547 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 26 states. [2020-11-06 22:00:40,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:40,925 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2020-11-06 22:00:40,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-06 22:00:40,925 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 141 [2020-11-06 22:00:40,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:40,927 INFO L225 Difference]: With dead ends: 92 [2020-11-06 22:00:40,927 INFO L226 Difference]: Without dead ends: 87 [2020-11-06 22:00:40,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=818, Invalid=1632, Unknown=0, NotChecked=0, Total=2450 [2020-11-06 22:00:40,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-11-06 22:00:40,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2020-11-06 22:00:40,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-11-06 22:00:40,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 93 transitions. [2020-11-06 22:00:40,935 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 93 transitions. Word has length 141 [2020-11-06 22:00:40,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:40,939 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 93 transitions. [2020-11-06 22:00:40,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-11-06 22:00:40,940 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2020-11-06 22:00:40,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-11-06 22:00:40,941 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:40,941 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:41,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:41,146 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:41,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:41,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1283861075, now seen corresponding path program 19 times [2020-11-06 22:00:41,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:41,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759837089] [2020-11-06 22:00:41,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:41,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:41,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:41,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:41,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:41,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:41,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:41,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:41,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:41,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:41,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:41,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:41,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:41,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:41,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:41,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:41,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:41,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:41,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:41,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:41,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:41,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:41,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:41,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:42,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2020-11-06 22:00:42,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759837089] [2020-11-06 22:00:42,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508250525] [2020-11-06 22:00:42,193 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:42,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 42 conjunts are in the unsatisfiable core [2020-11-06 22:00:42,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:42,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2020-11-06 22:00:42,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:42,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24] total 27 [2020-11-06 22:00:42,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561390029] [2020-11-06 22:00:42,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-11-06 22:00:42,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:42,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-11-06 22:00:42,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=440, Unknown=0, NotChecked=0, Total=702 [2020-11-06 22:00:42,458 INFO L87 Difference]: Start difference. First operand 85 states and 93 transitions. Second operand 27 states. [2020-11-06 22:00:43,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:43,913 INFO L93 Difference]: Finished difference Result 95 states and 105 transitions. [2020-11-06 22:00:43,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-11-06 22:00:43,913 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 148 [2020-11-06 22:00:43,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:43,915 INFO L225 Difference]: With dead ends: 95 [2020-11-06 22:00:43,915 INFO L226 Difference]: Without dead ends: 90 [2020-11-06 22:00:43,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=889, Invalid=1763, Unknown=0, NotChecked=0, Total=2652 [2020-11-06 22:00:43,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-11-06 22:00:43,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2020-11-06 22:00:43,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-11-06 22:00:43,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 96 transitions. [2020-11-06 22:00:43,923 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 96 transitions. Word has length 148 [2020-11-06 22:00:43,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:43,923 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 96 transitions. [2020-11-06 22:00:43,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-11-06 22:00:43,923 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 96 transitions. [2020-11-06 22:00:43,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-11-06 22:00:43,925 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:43,925 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:44,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:44,140 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:44,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:44,141 INFO L82 PathProgramCache]: Analyzing trace with hash 820211546, now seen corresponding path program 20 times [2020-11-06 22:00:44,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:44,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050819832] [2020-11-06 22:00:44,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:44,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:44,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:44,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:44,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:44,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:44,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:44,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:44,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:44,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:44,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:44,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:44,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:44,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:44,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:44,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:44,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:44,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:44,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:44,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:44,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:44,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:44,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:44,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:44,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:45,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:45,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 0 proven. 610 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2020-11-06 22:00:45,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050819832] [2020-11-06 22:00:45,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105691956] [2020-11-06 22:00:45,219 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:45,331 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-06 22:00:45,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:00:45,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 44 conjunts are in the unsatisfiable core [2020-11-06 22:00:45,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:45,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 0 proven. 610 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2020-11-06 22:00:45,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:45,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25] total 28 [2020-11-06 22:00:45,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446837546] [2020-11-06 22:00:45,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-11-06 22:00:45,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:45,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-11-06 22:00:45,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=471, Unknown=0, NotChecked=0, Total=756 [2020-11-06 22:00:45,483 INFO L87 Difference]: Start difference. First operand 88 states and 96 transitions. Second operand 28 states. [2020-11-06 22:00:46,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:46,954 INFO L93 Difference]: Finished difference Result 98 states and 108 transitions. [2020-11-06 22:00:46,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-06 22:00:46,956 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 155 [2020-11-06 22:00:46,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:46,958 INFO L225 Difference]: With dead ends: 98 [2020-11-06 22:00:46,958 INFO L226 Difference]: Without dead ends: 93 [2020-11-06 22:00:46,959 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=963, Invalid=1899, Unknown=0, NotChecked=0, Total=2862 [2020-11-06 22:00:46,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-11-06 22:00:46,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2020-11-06 22:00:46,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-11-06 22:00:46,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 99 transitions. [2020-11-06 22:00:46,970 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 99 transitions. Word has length 155 [2020-11-06 22:00:46,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:46,970 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 99 transitions. [2020-11-06 22:00:46,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-11-06 22:00:46,971 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 99 transitions. [2020-11-06 22:00:46,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-11-06 22:00:46,973 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:46,973 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:47,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-11-06 22:00:47,189 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:47,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:47,190 INFO L82 PathProgramCache]: Analyzing trace with hash 2064923967, now seen corresponding path program 21 times [2020-11-06 22:00:47,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:47,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584013841] [2020-11-06 22:00:47,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:47,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:47,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:47,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:47,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:47,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:47,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:47,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:47,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:47,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:47,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:47,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:47,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:47,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:47,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:47,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:47,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:47,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:47,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:47,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:47,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:47,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:47,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:47,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:47,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:48,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:48,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:48,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:48,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:48,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:48,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:48,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:48,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1554 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2020-11-06 22:00:48,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584013841] [2020-11-06 22:00:48,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798018150] [2020-11-06 22:00:48,424 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:48,556 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2020-11-06 22:00:48,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:00:48,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 46 conjunts are in the unsatisfiable core [2020-11-06 22:00:48,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:48,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1554 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2020-11-06 22:00:48,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:48,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26] total 29 [2020-11-06 22:00:48,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017341152] [2020-11-06 22:00:48,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-11-06 22:00:48,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:48,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-11-06 22:00:48,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=503, Unknown=0, NotChecked=0, Total=812 [2020-11-06 22:00:48,692 INFO L87 Difference]: Start difference. First operand 91 states and 99 transitions. Second operand 29 states. [2020-11-06 22:00:50,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:50,179 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2020-11-06 22:00:50,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-11-06 22:00:50,180 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 162 [2020-11-06 22:00:50,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:50,181 INFO L225 Difference]: With dead ends: 101 [2020-11-06 22:00:50,182 INFO L226 Difference]: Without dead ends: 96 [2020-11-06 22:00:50,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1040, Invalid=2040, Unknown=0, NotChecked=0, Total=3080 [2020-11-06 22:00:50,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-11-06 22:00:50,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2020-11-06 22:00:50,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-11-06 22:00:50,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 102 transitions. [2020-11-06 22:00:50,192 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 102 transitions. Word has length 162 [2020-11-06 22:00:50,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:50,193 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 102 transitions. [2020-11-06 22:00:50,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-11-06 22:00:50,193 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 102 transitions. [2020-11-06 22:00:50,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-11-06 22:00:50,194 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:50,194 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:50,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-11-06 22:00:50,407 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:50,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:50,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1646066248, now seen corresponding path program 22 times [2020-11-06 22:00:50,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:50,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411009989] [2020-11-06 22:00:50,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:50,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:50,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:50,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:50,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:50,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:50,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:50,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:50,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:50,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:50,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:50,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:50,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:50,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:50,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:51,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:51,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:51,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:51,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:51,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:51,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:51,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:51,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:51,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:51,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:51,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:51,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:51,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:51,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2020-11-06 22:00:51,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411009989] [2020-11-06 22:00:51,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998434320] [2020-11-06 22:00:51,647 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:51,760 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-06 22:00:51,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:00:51,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 48 conjunts are in the unsatisfiable core [2020-11-06 22:00:51,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:51,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2020-11-06 22:00:51,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:51,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 27] total 30 [2020-11-06 22:00:51,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570388438] [2020-11-06 22:00:51,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-11-06 22:00:51,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:51,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-11-06 22:00:51,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=334, Invalid=536, Unknown=0, NotChecked=0, Total=870 [2020-11-06 22:00:51,918 INFO L87 Difference]: Start difference. First operand 94 states and 102 transitions. Second operand 30 states. [2020-11-06 22:00:53,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:53,499 INFO L93 Difference]: Finished difference Result 104 states and 114 transitions. [2020-11-06 22:00:53,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-11-06 22:00:53,499 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 169 [2020-11-06 22:00:53,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:53,501 INFO L225 Difference]: With dead ends: 104 [2020-11-06 22:00:53,501 INFO L226 Difference]: Without dead ends: 99 [2020-11-06 22:00:53,502 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1120, Invalid=2186, Unknown=0, NotChecked=0, Total=3306 [2020-11-06 22:00:53,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-11-06 22:00:53,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2020-11-06 22:00:53,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-11-06 22:00:53,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2020-11-06 22:00:53,509 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 169 [2020-11-06 22:00:53,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:53,509 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2020-11-06 22:00:53,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-11-06 22:00:53,509 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2020-11-06 22:00:53,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-11-06 22:00:53,510 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:53,510 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:53,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:53,724 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:53,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:53,725 INFO L82 PathProgramCache]: Analyzing trace with hash -149030959, now seen corresponding path program 23 times [2020-11-06 22:00:53,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:53,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446476402] [2020-11-06 22:00:53,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:53,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:53,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:53,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:53,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:53,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:54,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:54,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:54,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:54,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:54,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:54,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:54,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:54,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:54,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:54,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:54,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:54,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:54,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:54,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:54,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:54,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:54,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:54,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:54,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:54,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:54,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:54,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:54,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:55,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1863 backedges. 0 proven. 805 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2020-11-06 22:00:55,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446476402] [2020-11-06 22:00:55,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669343048] [2020-11-06 22:00:55,086 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:55,219 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2020-11-06 22:00:55,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:00:55,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 50 conjunts are in the unsatisfiable core [2020-11-06 22:00:55,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:55,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1863 backedges. 0 proven. 805 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2020-11-06 22:00:55,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:55,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 28] total 31 [2020-11-06 22:00:55,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192374602] [2020-11-06 22:00:55,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-11-06 22:00:55,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:55,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-11-06 22:00:55,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=360, Invalid=570, Unknown=0, NotChecked=0, Total=930 [2020-11-06 22:00:55,381 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand 31 states. [2020-11-06 22:00:57,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:00:57,013 INFO L93 Difference]: Finished difference Result 107 states and 117 transitions. [2020-11-06 22:00:57,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-11-06 22:00:57,014 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 176 [2020-11-06 22:00:57,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:00:57,016 INFO L225 Difference]: With dead ends: 107 [2020-11-06 22:00:57,016 INFO L226 Difference]: Without dead ends: 102 [2020-11-06 22:00:57,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 726 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1203, Invalid=2337, Unknown=0, NotChecked=0, Total=3540 [2020-11-06 22:00:57,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-11-06 22:00:57,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2020-11-06 22:00:57,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-11-06 22:00:57,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 108 transitions. [2020-11-06 22:00:57,023 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 108 transitions. Word has length 176 [2020-11-06 22:00:57,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:00:57,023 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 108 transitions. [2020-11-06 22:00:57,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-11-06 22:00:57,023 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 108 transitions. [2020-11-06 22:00:57,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-06 22:00:57,025 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:00:57,025 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:00:57,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-11-06 22:00:57,239 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:00:57,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:00:57,240 INFO L82 PathProgramCache]: Analyzing trace with hash -802373066, now seen corresponding path program 24 times [2020-11-06 22:00:57,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:00:57,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079157563] [2020-11-06 22:00:57,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:00:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:57,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:00:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:57,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:00:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:57,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:57,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:57,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:57,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:57,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:57,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:57,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:57,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:57,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:57,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:57,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:57,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:57,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:57,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:57,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:58,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:58,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:58,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:58,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:58,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:58,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:58,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:58,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:58,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:58,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:58,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:58,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:58,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:58,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:00:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:00:58,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 0 proven. 876 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2020-11-06 22:00:58,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079157563] [2020-11-06 22:00:58,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177240604] [2020-11-06 22:00:58,942 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:00:59,095 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2020-11-06 22:00:59,095 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:00:59,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 52 conjunts are in the unsatisfiable core [2020-11-06 22:00:59,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:00:59,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 0 proven. 876 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2020-11-06 22:00:59,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:00:59,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 29] total 32 [2020-11-06 22:00:59,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793034788] [2020-11-06 22:00:59,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-11-06 22:00:59,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:00:59,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-11-06 22:00:59,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=387, Invalid=605, Unknown=0, NotChecked=0, Total=992 [2020-11-06 22:00:59,256 INFO L87 Difference]: Start difference. First operand 100 states and 108 transitions. Second operand 32 states. [2020-11-06 22:01:01,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:01:01,062 INFO L93 Difference]: Finished difference Result 110 states and 120 transitions. [2020-11-06 22:01:01,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-11-06 22:01:01,063 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 183 [2020-11-06 22:01:01,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:01:01,065 INFO L225 Difference]: With dead ends: 110 [2020-11-06 22:01:01,065 INFO L226 Difference]: Without dead ends: 105 [2020-11-06 22:01:01,067 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1289, Invalid=2493, Unknown=0, NotChecked=0, Total=3782 [2020-11-06 22:01:01,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-11-06 22:01:01,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2020-11-06 22:01:01,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-11-06 22:01:01,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 111 transitions. [2020-11-06 22:01:01,073 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 111 transitions. Word has length 183 [2020-11-06 22:01:01,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:01:01,073 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 111 transitions. [2020-11-06 22:01:01,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-11-06 22:01:01,073 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 111 transitions. [2020-11-06 22:01:01,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-11-06 22:01:01,074 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:01:01,075 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:01:01,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:01:01,280 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:01:01,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:01:01,281 INFO L82 PathProgramCache]: Analyzing trace with hash 751035747, now seen corresponding path program 25 times [2020-11-06 22:01:01,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:01:01,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351902872] [2020-11-06 22:01:01,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:01:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:01,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:01:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:01,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:01:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:01,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:01,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:01,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:01,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:01,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:01,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:01,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:01,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:01,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:01,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:01,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:01,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:01,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:01,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:02,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:02,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:02,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:02,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:02,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:02,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:02,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:02,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:02,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:02,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:02,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:02,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:02,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:02,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2200 backedges. 0 proven. 950 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2020-11-06 22:01:02,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351902872] [2020-11-06 22:01:02,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779866489] [2020-11-06 22:01:02,964 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:01:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:03,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 54 conjunts are in the unsatisfiable core [2020-11-06 22:01:03,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:01:03,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2200 backedges. 0 proven. 950 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2020-11-06 22:01:03,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:01:03,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30] total 33 [2020-11-06 22:01:03,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954718473] [2020-11-06 22:01:03,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-11-06 22:01:03,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:01:03,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-11-06 22:01:03,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=641, Unknown=0, NotChecked=0, Total=1056 [2020-11-06 22:01:03,240 INFO L87 Difference]: Start difference. First operand 103 states and 111 transitions. Second operand 33 states. [2020-11-06 22:01:05,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:01:05,107 INFO L93 Difference]: Finished difference Result 113 states and 123 transitions. [2020-11-06 22:01:05,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-11-06 22:01:05,107 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 190 [2020-11-06 22:01:05,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:01:05,109 INFO L225 Difference]: With dead ends: 113 [2020-11-06 22:01:05,109 INFO L226 Difference]: Without dead ends: 108 [2020-11-06 22:01:05,112 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 838 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1378, Invalid=2654, Unknown=0, NotChecked=0, Total=4032 [2020-11-06 22:01:05,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-11-06 22:01:05,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 106. [2020-11-06 22:01:05,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-06 22:01:05,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 114 transitions. [2020-11-06 22:01:05,118 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 114 transitions. Word has length 190 [2020-11-06 22:01:05,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:01:05,118 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 114 transitions. [2020-11-06 22:01:05,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-11-06 22:01:05,119 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 114 transitions. [2020-11-06 22:01:05,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-11-06 22:01:05,120 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:01:05,120 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:01:05,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-11-06 22:01:05,326 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:01:05,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:01:05,327 INFO L82 PathProgramCache]: Analyzing trace with hash 422962980, now seen corresponding path program 26 times [2020-11-06 22:01:05,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:01:05,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70479562] [2020-11-06 22:01:05,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:01:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:05,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:01:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:05,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:01:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:05,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:05,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:05,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:05,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:05,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:05,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:05,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:05,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:05,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:05,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:05,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:06,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:06,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:06,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:06,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:06,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:06,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:06,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:06,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:06,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:06,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:06,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:06,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:06,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:06,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:06,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:06,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:06,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:06,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:07,065 INFO L134 CoverageAnalysis]: Checked inductivity of 2379 backedges. 0 proven. 1027 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked. [2020-11-06 22:01:07,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70479562] [2020-11-06 22:01:07,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691621050] [2020-11-06 22:01:07,065 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:01:07,194 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-06 22:01:07,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:01:07,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 56 conjunts are in the unsatisfiable core [2020-11-06 22:01:07,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:01:07,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2379 backedges. 0 proven. 1027 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked. [2020-11-06 22:01:07,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:01:07,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 31] total 34 [2020-11-06 22:01:07,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216254934] [2020-11-06 22:01:07,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-11-06 22:01:07,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:01:07,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-11-06 22:01:07,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=444, Invalid=678, Unknown=0, NotChecked=0, Total=1122 [2020-11-06 22:01:07,371 INFO L87 Difference]: Start difference. First operand 106 states and 114 transitions. Second operand 34 states. [2020-11-06 22:01:09,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:01:09,266 INFO L93 Difference]: Finished difference Result 116 states and 126 transitions. [2020-11-06 22:01:09,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-11-06 22:01:09,267 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 197 [2020-11-06 22:01:09,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:01:09,269 INFO L225 Difference]: With dead ends: 116 [2020-11-06 22:01:09,269 INFO L226 Difference]: Without dead ends: 111 [2020-11-06 22:01:09,271 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 897 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1470, Invalid=2820, Unknown=0, NotChecked=0, Total=4290 [2020-11-06 22:01:09,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-11-06 22:01:09,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2020-11-06 22:01:09,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-06 22:01:09,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 117 transitions. [2020-11-06 22:01:09,277 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 117 transitions. Word has length 197 [2020-11-06 22:01:09,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:01:09,278 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 117 transitions. [2020-11-06 22:01:09,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-11-06 22:01:09,278 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 117 transitions. [2020-11-06 22:01:09,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-11-06 22:01:09,279 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:01:09,280 INFO L422 BasicCegarLoop]: trace histogram [28, 28, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:01:09,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-11-06 22:01:09,493 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:01:09,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:01:09,494 INFO L82 PathProgramCache]: Analyzing trace with hash 85124597, now seen corresponding path program 27 times [2020-11-06 22:01:09,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:01:09,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466923610] [2020-11-06 22:01:09,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:01:09,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:09,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:01:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:09,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:01:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:09,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:09,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:09,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:09,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:09,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:09,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:09,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:09,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:10,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:10,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:10,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:10,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:10,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:10,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:10,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:10,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:10,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:10,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:10,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:10,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:10,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:10,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:10,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:10,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:10,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:10,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:10,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:10,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:10,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:10,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:10,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:11,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2565 backedges. 0 proven. 1107 refuted. 0 times theorem prover too weak. 1458 trivial. 0 not checked. [2020-11-06 22:01:11,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466923610] [2020-11-06 22:01:11,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406590583] [2020-11-06 22:01:11,303 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:01:11,478 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2020-11-06 22:01:11,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:01:11,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 58 conjunts are in the unsatisfiable core [2020-11-06 22:01:11,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:01:11,687 INFO L134 CoverageAnalysis]: Checked inductivity of 2565 backedges. 0 proven. 1107 refuted. 0 times theorem prover too weak. 1458 trivial. 0 not checked. [2020-11-06 22:01:11,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:01:11,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 32] total 35 [2020-11-06 22:01:11,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975209181] [2020-11-06 22:01:11,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-11-06 22:01:11,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:01:11,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-11-06 22:01:11,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=474, Invalid=716, Unknown=0, NotChecked=0, Total=1190 [2020-11-06 22:01:11,689 INFO L87 Difference]: Start difference. First operand 109 states and 117 transitions. Second operand 35 states. [2020-11-06 22:01:13,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:01:13,675 INFO L93 Difference]: Finished difference Result 119 states and 129 transitions. [2020-11-06 22:01:13,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-11-06 22:01:13,676 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 204 [2020-11-06 22:01:13,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:01:13,678 INFO L225 Difference]: With dead ends: 119 [2020-11-06 22:01:13,678 INFO L226 Difference]: Without dead ends: 114 [2020-11-06 22:01:13,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 958 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1565, Invalid=2991, Unknown=0, NotChecked=0, Total=4556 [2020-11-06 22:01:13,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-11-06 22:01:13,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 112. [2020-11-06 22:01:13,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-11-06 22:01:13,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 120 transitions. [2020-11-06 22:01:13,688 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 120 transitions. Word has length 204 [2020-11-06 22:01:13,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:01:13,689 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 120 transitions. [2020-11-06 22:01:13,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-11-06 22:01:13,689 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 120 transitions. [2020-11-06 22:01:13,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-11-06 22:01:13,690 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:01:13,690 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:01:13,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-11-06 22:01:13,904 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:01:13,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:01:13,905 INFO L82 PathProgramCache]: Analyzing trace with hash -2105833198, now seen corresponding path program 28 times [2020-11-06 22:01:13,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:01:13,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654803800] [2020-11-06 22:01:13,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:01:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:13,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:01:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:13,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:01:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:14,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:14,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:14,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:14,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:14,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:14,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:14,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:14,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:14,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:14,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:14,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:14,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:14,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:14,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:14,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:14,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:14,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:14,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:14,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:14,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:14,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:15,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:15,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:15,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:15,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:15,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:15,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:15,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:15,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:15,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:15,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:15,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2758 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 1568 trivial. 0 not checked. [2020-11-06 22:01:15,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654803800] [2020-11-06 22:01:15,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578758218] [2020-11-06 22:01:15,799 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:01:15,939 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-06 22:01:15,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:01:15,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 60 conjunts are in the unsatisfiable core [2020-11-06 22:01:15,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:01:16,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2758 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 1568 trivial. 0 not checked. [2020-11-06 22:01:16,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:01:16,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 33] total 36 [2020-11-06 22:01:16,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367380152] [2020-11-06 22:01:16,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-11-06 22:01:16,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:01:16,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-11-06 22:01:16,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=505, Invalid=755, Unknown=0, NotChecked=0, Total=1260 [2020-11-06 22:01:16,111 INFO L87 Difference]: Start difference. First operand 112 states and 120 transitions. Second operand 36 states. [2020-11-06 22:01:18,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:01:18,212 INFO L93 Difference]: Finished difference Result 122 states and 132 transitions. [2020-11-06 22:01:18,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-11-06 22:01:18,213 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 211 [2020-11-06 22:01:18,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:01:18,215 INFO L225 Difference]: With dead ends: 122 [2020-11-06 22:01:18,215 INFO L226 Difference]: Without dead ends: 117 [2020-11-06 22:01:18,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1021 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1663, Invalid=3167, Unknown=0, NotChecked=0, Total=4830 [2020-11-06 22:01:18,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-11-06 22:01:18,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2020-11-06 22:01:18,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-06 22:01:18,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 123 transitions. [2020-11-06 22:01:18,222 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 123 transitions. Word has length 211 [2020-11-06 22:01:18,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:01:18,223 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 123 transitions. [2020-11-06 22:01:18,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-11-06 22:01:18,223 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 123 transitions. [2020-11-06 22:01:18,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-11-06 22:01:18,224 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:01:18,224 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:01:18,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:01:18,433 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:01:18,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:01:18,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1995954567, now seen corresponding path program 29 times [2020-11-06 22:01:18,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:01:18,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489756174] [2020-11-06 22:01:18,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:01:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:18,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:01:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:18,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:01:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:18,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:18,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:18,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:18,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:18,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:18,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:18,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:18,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:19,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:19,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:19,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:19,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:19,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:19,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:19,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:19,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:19,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:19,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:19,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:19,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:19,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:19,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:19,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:19,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:19,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:19,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:19,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:19,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:19,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:19,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:20,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:20,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:20,450 INFO L134 CoverageAnalysis]: Checked inductivity of 2958 backedges. 0 proven. 1276 refuted. 0 times theorem prover too weak. 1682 trivial. 0 not checked. [2020-11-06 22:01:20,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489756174] [2020-11-06 22:01:20,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463392489] [2020-11-06 22:01:20,451 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:01:20,599 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2020-11-06 22:01:20,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:01:20,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 62 conjunts are in the unsatisfiable core [2020-11-06 22:01:20,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:01:20,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2958 backedges. 0 proven. 1276 refuted. 0 times theorem prover too weak. 1682 trivial. 0 not checked. [2020-11-06 22:01:20,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:01:20,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 34] total 37 [2020-11-06 22:01:20,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201159590] [2020-11-06 22:01:20,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-11-06 22:01:20,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:01:20,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-11-06 22:01:20,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=537, Invalid=795, Unknown=0, NotChecked=0, Total=1332 [2020-11-06 22:01:20,768 INFO L87 Difference]: Start difference. First operand 115 states and 123 transitions. Second operand 37 states. [2020-11-06 22:01:22,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:01:22,914 INFO L93 Difference]: Finished difference Result 125 states and 135 transitions. [2020-11-06 22:01:22,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-11-06 22:01:22,914 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 218 [2020-11-06 22:01:22,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:01:22,916 INFO L225 Difference]: With dead ends: 125 [2020-11-06 22:01:22,916 INFO L226 Difference]: Without dead ends: 120 [2020-11-06 22:01:22,917 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1764, Invalid=3348, Unknown=0, NotChecked=0, Total=5112 [2020-11-06 22:01:22,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-11-06 22:01:22,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 118. [2020-11-06 22:01:22,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-11-06 22:01:22,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 126 transitions. [2020-11-06 22:01:22,924 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 126 transitions. Word has length 218 [2020-11-06 22:01:22,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:01:22,924 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 126 transitions. [2020-11-06 22:01:22,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-11-06 22:01:22,924 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 126 transitions. [2020-11-06 22:01:22,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-11-06 22:01:22,926 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:01:22,926 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:01:23,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2020-11-06 22:01:23,141 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:01:23,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:01:23,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1314965504, now seen corresponding path program 30 times [2020-11-06 22:01:23,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:01:23,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777098816] [2020-11-06 22:01:23,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:01:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:23,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:01:23,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:23,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:01:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:23,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:23,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:23,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:23,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:23,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:23,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:23,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:23,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:23,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:23,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:23,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:23,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:23,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:23,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:23,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:24,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:24,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:24,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:24,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:24,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:24,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:24,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:24,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:24,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:24,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:24,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:24,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:24,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:24,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:24,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:24,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:24,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:24,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:24,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:24,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:25,239 INFO L134 CoverageAnalysis]: Checked inductivity of 3165 backedges. 0 proven. 1365 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2020-11-06 22:01:25,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777098816] [2020-11-06 22:01:25,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306772362] [2020-11-06 22:01:25,240 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:01:25,405 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 31 check-sat command(s) [2020-11-06 22:01:25,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:01:25,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 64 conjunts are in the unsatisfiable core [2020-11-06 22:01:25,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:01:25,576 INFO L134 CoverageAnalysis]: Checked inductivity of 3165 backedges. 0 proven. 1365 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2020-11-06 22:01:25,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:01:25,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 35] total 38 [2020-11-06 22:01:25,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810484764] [2020-11-06 22:01:25,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-11-06 22:01:25,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:01:25,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-11-06 22:01:25,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=570, Invalid=836, Unknown=0, NotChecked=0, Total=1406 [2020-11-06 22:01:25,578 INFO L87 Difference]: Start difference. First operand 118 states and 126 transitions. Second operand 38 states. [2020-11-06 22:01:27,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:01:27,801 INFO L93 Difference]: Finished difference Result 128 states and 138 transitions. [2020-11-06 22:01:27,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-11-06 22:01:27,802 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 225 [2020-11-06 22:01:27,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:01:27,803 INFO L225 Difference]: With dead ends: 128 [2020-11-06 22:01:27,804 INFO L226 Difference]: Without dead ends: 123 [2020-11-06 22:01:27,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1153 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1868, Invalid=3534, Unknown=0, NotChecked=0, Total=5402 [2020-11-06 22:01:27,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-11-06 22:01:27,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2020-11-06 22:01:27,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-11-06 22:01:27,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 129 transitions. [2020-11-06 22:01:27,812 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 129 transitions. Word has length 225 [2020-11-06 22:01:27,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:01:27,812 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 129 transitions. [2020-11-06 22:01:27,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-11-06 22:01:27,812 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 129 transitions. [2020-11-06 22:01:27,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-11-06 22:01:27,814 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:01:27,814 INFO L422 BasicCegarLoop]: trace histogram [32, 32, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:01:28,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:01:28,028 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:01:28,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:01:28,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1321230311, now seen corresponding path program 31 times [2020-11-06 22:01:28,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:01:28,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136586917] [2020-11-06 22:01:28,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:01:28,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:28,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:01:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:28,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:01:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:28,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:28,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:28,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:28,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:28,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:28,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:28,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:28,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:28,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:28,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:28,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:28,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:28,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:29,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:29,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:29,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:29,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:29,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:29,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:29,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:29,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:29,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:29,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:29,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:29,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:29,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:29,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:29,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:29,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:29,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:29,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:29,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:29,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:30,430 INFO L134 CoverageAnalysis]: Checked inductivity of 3379 backedges. 0 proven. 1457 refuted. 0 times theorem prover too weak. 1922 trivial. 0 not checked. [2020-11-06 22:01:30,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136586917] [2020-11-06 22:01:30,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110154644] [2020-11-06 22:01:30,431 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:01:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:30,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 66 conjunts are in the unsatisfiable core [2020-11-06 22:01:30,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:01:30,744 INFO L134 CoverageAnalysis]: Checked inductivity of 3379 backedges. 0 proven. 1457 refuted. 0 times theorem prover too weak. 1922 trivial. 0 not checked. [2020-11-06 22:01:30,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:01:30,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 36] total 39 [2020-11-06 22:01:30,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021423105] [2020-11-06 22:01:30,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-11-06 22:01:30,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:01:30,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-11-06 22:01:30,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=604, Invalid=878, Unknown=0, NotChecked=0, Total=1482 [2020-11-06 22:01:30,747 INFO L87 Difference]: Start difference. First operand 121 states and 129 transitions. Second operand 39 states. [2020-11-06 22:01:33,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:01:33,072 INFO L93 Difference]: Finished difference Result 131 states and 141 transitions. [2020-11-06 22:01:33,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-11-06 22:01:33,072 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 232 [2020-11-06 22:01:33,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:01:33,073 INFO L225 Difference]: With dead ends: 131 [2020-11-06 22:01:33,074 INFO L226 Difference]: Without dead ends: 126 [2020-11-06 22:01:33,075 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1222 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1975, Invalid=3725, Unknown=0, NotChecked=0, Total=5700 [2020-11-06 22:01:33,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-11-06 22:01:33,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 124. [2020-11-06 22:01:33,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-11-06 22:01:33,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 132 transitions. [2020-11-06 22:01:33,081 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 132 transitions. Word has length 232 [2020-11-06 22:01:33,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:01:33,082 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 132 transitions. [2020-11-06 22:01:33,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-11-06 22:01:33,082 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 132 transitions. [2020-11-06 22:01:33,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-11-06 22:01:33,083 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:01:33,084 INFO L422 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:01:33,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2020-11-06 22:01:33,298 INFO L429 AbstractCegarLoop]: === Iteration 34 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:01:33,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:01:33,298 INFO L82 PathProgramCache]: Analyzing trace with hash 308855790, now seen corresponding path program 32 times [2020-11-06 22:01:33,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:01:33,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654538454] [2020-11-06 22:01:33,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:01:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:33,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:01:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:33,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:01:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:33,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:33,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:33,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:33,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:33,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:33,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:33,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:33,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:33,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:34,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:34,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:34,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:34,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:34,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:34,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:34,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:34,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:34,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:34,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:34,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:34,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:34,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:34,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:34,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:34,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:34,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:34,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:34,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:35,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:35,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:35,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:35,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:35,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:35,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:35,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:35,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:35,844 INFO L134 CoverageAnalysis]: Checked inductivity of 3600 backedges. 0 proven. 1552 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2020-11-06 22:01:35,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654538454] [2020-11-06 22:01:35,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694787712] [2020-11-06 22:01:35,845 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:01:35,993 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-06 22:01:35,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:01:35,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 68 conjunts are in the unsatisfiable core [2020-11-06 22:01:36,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:01:36,201 INFO L134 CoverageAnalysis]: Checked inductivity of 3600 backedges. 0 proven. 1552 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2020-11-06 22:01:36,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:01:36,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 37] total 40 [2020-11-06 22:01:36,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212893608] [2020-11-06 22:01:36,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-11-06 22:01:36,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:01:36,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-11-06 22:01:36,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=639, Invalid=921, Unknown=0, NotChecked=0, Total=1560 [2020-11-06 22:01:36,203 INFO L87 Difference]: Start difference. First operand 124 states and 132 transitions. Second operand 40 states. [2020-11-06 22:01:38,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:01:38,563 INFO L93 Difference]: Finished difference Result 134 states and 144 transitions. [2020-11-06 22:01:38,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-11-06 22:01:38,563 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 239 [2020-11-06 22:01:38,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:01:38,565 INFO L225 Difference]: With dead ends: 134 [2020-11-06 22:01:38,565 INFO L226 Difference]: Without dead ends: 129 [2020-11-06 22:01:38,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1293 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=2085, Invalid=3921, Unknown=0, NotChecked=0, Total=6006 [2020-11-06 22:01:38,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-11-06 22:01:38,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 127. [2020-11-06 22:01:38,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-11-06 22:01:38,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 135 transitions. [2020-11-06 22:01:38,572 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 135 transitions. Word has length 239 [2020-11-06 22:01:38,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:01:38,573 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 135 transitions. [2020-11-06 22:01:38,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-11-06 22:01:38,573 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 135 transitions. [2020-11-06 22:01:38,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-11-06 22:01:38,575 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:01:38,575 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:01:38,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2020-11-06 22:01:38,791 INFO L429 AbstractCegarLoop]: === Iteration 35 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:01:38,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:01:38,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1150753195, now seen corresponding path program 33 times [2020-11-06 22:01:38,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:01:38,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320878670] [2020-11-06 22:01:38,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:01:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:38,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:01:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:38,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:01:38,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:38,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:39,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:39,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:39,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:39,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:39,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:39,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:39,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:39,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:39,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:39,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:39,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:39,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:39,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:39,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:39,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:39,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:40,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:40,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:40,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:40,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:40,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:40,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:40,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:40,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:40,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:40,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:40,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:40,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:40,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:40,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:40,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:40,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:40,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:40,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:40,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:40,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:41,421 INFO L134 CoverageAnalysis]: Checked inductivity of 3828 backedges. 0 proven. 1650 refuted. 0 times theorem prover too weak. 2178 trivial. 0 not checked. [2020-11-06 22:01:41,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320878670] [2020-11-06 22:01:41,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398278853] [2020-11-06 22:01:41,422 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:01:41,607 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 34 check-sat command(s) [2020-11-06 22:01:41,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:01:41,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 70 conjunts are in the unsatisfiable core [2020-11-06 22:01:41,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:01:41,821 INFO L134 CoverageAnalysis]: Checked inductivity of 3828 backedges. 0 proven. 1650 refuted. 0 times theorem prover too weak. 2178 trivial. 0 not checked. [2020-11-06 22:01:41,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:01:41,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 38] total 41 [2020-11-06 22:01:41,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206444882] [2020-11-06 22:01:41,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-11-06 22:01:41,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:01:41,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-11-06 22:01:41,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=675, Invalid=965, Unknown=0, NotChecked=0, Total=1640 [2020-11-06 22:01:41,825 INFO L87 Difference]: Start difference. First operand 127 states and 135 transitions. Second operand 41 states. [2020-11-06 22:01:44,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:01:44,309 INFO L93 Difference]: Finished difference Result 137 states and 147 transitions. [2020-11-06 22:01:44,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-11-06 22:01:44,310 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 246 [2020-11-06 22:01:44,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:01:44,312 INFO L225 Difference]: With dead ends: 137 [2020-11-06 22:01:44,312 INFO L226 Difference]: Without dead ends: 132 [2020-11-06 22:01:44,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1366 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2198, Invalid=4122, Unknown=0, NotChecked=0, Total=6320 [2020-11-06 22:01:44,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-11-06 22:01:44,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 130. [2020-11-06 22:01:44,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-11-06 22:01:44,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 138 transitions. [2020-11-06 22:01:44,320 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 138 transitions. Word has length 246 [2020-11-06 22:01:44,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:01:44,320 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 138 transitions. [2020-11-06 22:01:44,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-11-06 22:01:44,320 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 138 transitions. [2020-11-06 22:01:44,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-11-06 22:01:44,322 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:01:44,322 INFO L422 BasicCegarLoop]: trace histogram [35, 35, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:01:44,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2020-11-06 22:01:44,526 INFO L429 AbstractCegarLoop]: === Iteration 36 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:01:44,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:01:44,527 INFO L82 PathProgramCache]: Analyzing trace with hash 221682908, now seen corresponding path program 34 times [2020-11-06 22:01:44,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:01:44,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858687932] [2020-11-06 22:01:44,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:01:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:44,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:01:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:44,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:01:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:44,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:44,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:44,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:44,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:44,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:45,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:45,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:45,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:45,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:45,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:45,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:45,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:45,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:45,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:45,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:45,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:45,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:45,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:45,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:45,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:45,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:45,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:45,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:46,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:46,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:46,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:46,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:46,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:46,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:46,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:46,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:46,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:46,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:46,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:46,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:46,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:46,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:47,315 INFO L134 CoverageAnalysis]: Checked inductivity of 4063 backedges. 0 proven. 1751 refuted. 0 times theorem prover too weak. 2312 trivial. 0 not checked. [2020-11-06 22:01:47,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858687932] [2020-11-06 22:01:47,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612686318] [2020-11-06 22:01:47,316 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:01:47,469 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-06 22:01:47,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:01:47,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 72 conjunts are in the unsatisfiable core [2020-11-06 22:01:47,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:01:47,659 INFO L134 CoverageAnalysis]: Checked inductivity of 4063 backedges. 0 proven. 1751 refuted. 0 times theorem prover too weak. 2312 trivial. 0 not checked. [2020-11-06 22:01:47,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:01:47,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 39] total 42 [2020-11-06 22:01:47,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688010624] [2020-11-06 22:01:47,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-11-06 22:01:47,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:01:47,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-11-06 22:01:47,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=712, Invalid=1010, Unknown=0, NotChecked=0, Total=1722 [2020-11-06 22:01:47,661 INFO L87 Difference]: Start difference. First operand 130 states and 138 transitions. Second operand 42 states. [2020-11-06 22:01:50,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:01:50,169 INFO L93 Difference]: Finished difference Result 140 states and 150 transitions. [2020-11-06 22:01:50,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-11-06 22:01:50,170 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 253 [2020-11-06 22:01:50,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:01:50,174 INFO L225 Difference]: With dead ends: 140 [2020-11-06 22:01:50,174 INFO L226 Difference]: Without dead ends: 135 [2020-11-06 22:01:50,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1441 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2314, Invalid=4328, Unknown=0, NotChecked=0, Total=6642 [2020-11-06 22:01:50,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-11-06 22:01:50,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2020-11-06 22:01:50,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-11-06 22:01:50,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 141 transitions. [2020-11-06 22:01:50,183 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 141 transitions. Word has length 253 [2020-11-06 22:01:50,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:01:50,183 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 141 transitions. [2020-11-06 22:01:50,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-11-06 22:01:50,184 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 141 transitions. [2020-11-06 22:01:50,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-11-06 22:01:50,185 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:01:50,186 INFO L422 BasicCegarLoop]: trace histogram [36, 36, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:01:50,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2020-11-06 22:01:50,400 INFO L429 AbstractCegarLoop]: === Iteration 37 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:01:50,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:01:50,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1300964925, now seen corresponding path program 35 times [2020-11-06 22:01:50,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:01:50,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176888984] [2020-11-06 22:01:50,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:01:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:50,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:01:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:50,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:01:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:50,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:50,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:50,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:50,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:50,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:50,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:51,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:51,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:51,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:51,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:51,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:51,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:51,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:51,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:51,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:51,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:51,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:51,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:51,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:51,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:51,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:51,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:51,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:51,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:51,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:51,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:51,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:52,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:52,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:52,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:52,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:52,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:52,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:52,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:52,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:52,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:52,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:52,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:52,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:52,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:52,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:52,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:52,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:52,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:52,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:53,327 INFO L134 CoverageAnalysis]: Checked inductivity of 4305 backedges. 0 proven. 1855 refuted. 0 times theorem prover too weak. 2450 trivial. 0 not checked. [2020-11-06 22:01:53,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176888984] [2020-11-06 22:01:53,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221500716] [2020-11-06 22:01:53,328 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:01:53,513 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 36 check-sat command(s) [2020-11-06 22:01:53,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:01:53,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 774 conjuncts, 74 conjunts are in the unsatisfiable core [2020-11-06 22:01:53,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:01:53,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4305 backedges. 0 proven. 1855 refuted. 0 times theorem prover too weak. 2450 trivial. 0 not checked. [2020-11-06 22:01:53,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:01:53,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 40] total 43 [2020-11-06 22:01:53,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363862640] [2020-11-06 22:01:53,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-11-06 22:01:53,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:01:53,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-11-06 22:01:53,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=750, Invalid=1056, Unknown=0, NotChecked=0, Total=1806 [2020-11-06 22:01:53,774 INFO L87 Difference]: Start difference. First operand 133 states and 141 transitions. Second operand 43 states. [2020-11-06 22:01:56,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:01:56,342 INFO L93 Difference]: Finished difference Result 143 states and 153 transitions. [2020-11-06 22:01:56,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-11-06 22:01:56,343 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 260 [2020-11-06 22:01:56,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:01:56,345 INFO L225 Difference]: With dead ends: 143 [2020-11-06 22:01:56,345 INFO L226 Difference]: Without dead ends: 138 [2020-11-06 22:01:56,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1518 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=2433, Invalid=4539, Unknown=0, NotChecked=0, Total=6972 [2020-11-06 22:01:56,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-11-06 22:01:56,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 136. [2020-11-06 22:01:56,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-11-06 22:01:56,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 144 transitions. [2020-11-06 22:01:56,353 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 144 transitions. Word has length 260 [2020-11-06 22:01:56,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:01:56,354 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 144 transitions. [2020-11-06 22:01:56,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-11-06 22:01:56,354 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 144 transitions. [2020-11-06 22:01:56,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-11-06 22:01:56,355 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:01:56,356 INFO L422 BasicCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:01:56,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2020-11-06 22:01:56,571 INFO L429 AbstractCegarLoop]: === Iteration 38 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:01:56,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:01:56,572 INFO L82 PathProgramCache]: Analyzing trace with hash 2089644746, now seen corresponding path program 36 times [2020-11-06 22:01:56,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:01:56,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135700800] [2020-11-06 22:01:56,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:01:56,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:56,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:01:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:56,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:01:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:56,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:56,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:56,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:57,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:57,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:57,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:57,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:57,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:57,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:57,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:57,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:57,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:57,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:57,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:57,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:57,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:57,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:57,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:57,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:57,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:57,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:57,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:58,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:58,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:58,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:58,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:58,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:58,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:58,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:58,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:58,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:58,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:58,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:58,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:58,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:58,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:58,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:58,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:58,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:58,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:58,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:58,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:58,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:58,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:58,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:58,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:01:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:01:59,649 INFO L134 CoverageAnalysis]: Checked inductivity of 4554 backedges. 0 proven. 1962 refuted. 0 times theorem prover too weak. 2592 trivial. 0 not checked. [2020-11-06 22:01:59,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135700800] [2020-11-06 22:01:59,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637286081] [2020-11-06 22:01:59,650 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:01:59,844 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2020-11-06 22:01:59,845 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:01:59,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 76 conjunts are in the unsatisfiable core [2020-11-06 22:01:59,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:02:00,097 INFO L134 CoverageAnalysis]: Checked inductivity of 4554 backedges. 0 proven. 1962 refuted. 0 times theorem prover too weak. 2592 trivial. 0 not checked. [2020-11-06 22:02:00,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:02:00,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 41] total 44 [2020-11-06 22:02:00,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6612944] [2020-11-06 22:02:00,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-11-06 22:02:00,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:02:00,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-11-06 22:02:00,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=789, Invalid=1103, Unknown=0, NotChecked=0, Total=1892 [2020-11-06 22:02:00,100 INFO L87 Difference]: Start difference. First operand 136 states and 144 transitions. Second operand 44 states. [2020-11-06 22:02:02,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:02:02,834 INFO L93 Difference]: Finished difference Result 146 states and 156 transitions. [2020-11-06 22:02:02,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-11-06 22:02:02,835 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 267 [2020-11-06 22:02:02,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:02:02,836 INFO L225 Difference]: With dead ends: 146 [2020-11-06 22:02:02,837 INFO L226 Difference]: Without dead ends: 141 [2020-11-06 22:02:02,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1597 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=2555, Invalid=4755, Unknown=0, NotChecked=0, Total=7310 [2020-11-06 22:02:02,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-11-06 22:02:02,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 139. [2020-11-06 22:02:02,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-11-06 22:02:02,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 147 transitions. [2020-11-06 22:02:02,844 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 147 transitions. Word has length 267 [2020-11-06 22:02:02,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:02:02,844 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 147 transitions. [2020-11-06 22:02:02,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-11-06 22:02:02,845 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 147 transitions. [2020-11-06 22:02:02,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-11-06 22:02:02,846 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:02:02,847 INFO L422 BasicCegarLoop]: trace histogram [38, 38, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:02:03,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2020-11-06 22:02:03,060 INFO L429 AbstractCegarLoop]: === Iteration 39 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:02:03,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:02:03,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1635211825, now seen corresponding path program 37 times [2020-11-06 22:02:03,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:02:03,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962794537] [2020-11-06 22:02:03,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:02:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:03,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:02:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:03,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:02:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:03,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:03,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:03,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:03,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:03,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:03,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:03,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:03,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:03,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:03,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:04,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:04,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:04,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:04,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:04,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:04,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:04,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:04,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:04,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:04,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:04,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:04,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:04,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:04,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:04,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:04,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:04,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:04,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:04,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:05,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:05,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:05,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:05,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:05,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:05,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:05,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:05,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:05,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:05,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:05,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:05,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:05,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:05,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:05,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:05,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:06,451 INFO L134 CoverageAnalysis]: Checked inductivity of 4810 backedges. 0 proven. 2072 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked. [2020-11-06 22:02:06,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962794537] [2020-11-06 22:02:06,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873618262] [2020-11-06 22:02:06,451 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:02:06,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:06,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 812 conjuncts, 78 conjunts are in the unsatisfiable core [2020-11-06 22:02:06,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:02:06,855 INFO L134 CoverageAnalysis]: Checked inductivity of 4810 backedges. 0 proven. 2072 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked. [2020-11-06 22:02:06,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:02:06,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 42] total 45 [2020-11-06 22:02:06,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556850703] [2020-11-06 22:02:06,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-11-06 22:02:06,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:02:06,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-11-06 22:02:06,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=829, Invalid=1151, Unknown=0, NotChecked=0, Total=1980 [2020-11-06 22:02:06,858 INFO L87 Difference]: Start difference. First operand 139 states and 147 transitions. Second operand 45 states. [2020-11-06 22:02:09,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:02:09,628 INFO L93 Difference]: Finished difference Result 149 states and 159 transitions. [2020-11-06 22:02:09,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-11-06 22:02:09,629 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 274 [2020-11-06 22:02:09,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:02:09,632 INFO L225 Difference]: With dead ends: 149 [2020-11-06 22:02:09,632 INFO L226 Difference]: Without dead ends: 144 [2020-11-06 22:02:09,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1678 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=2680, Invalid=4976, Unknown=0, NotChecked=0, Total=7656 [2020-11-06 22:02:09,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-11-06 22:02:09,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2020-11-06 22:02:09,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-11-06 22:02:09,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 150 transitions. [2020-11-06 22:02:09,639 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 150 transitions. Word has length 274 [2020-11-06 22:02:09,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:02:09,640 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 150 transitions. [2020-11-06 22:02:09,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-11-06 22:02:09,640 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 150 transitions. [2020-11-06 22:02:09,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-11-06 22:02:09,641 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:02:09,642 INFO L422 BasicCegarLoop]: trace histogram [39, 39, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:02:09,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-11-06 22:02:09,850 INFO L429 AbstractCegarLoop]: === Iteration 40 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:02:09,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:02:09,851 INFO L82 PathProgramCache]: Analyzing trace with hash -212834888, now seen corresponding path program 38 times [2020-11-06 22:02:09,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:02:09,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727632227] [2020-11-06 22:02:09,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:02:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:09,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:02:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:09,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:02:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:10,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:10,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:10,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:10,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:10,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:10,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:10,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:10,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:10,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:10,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:11,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:11,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:11,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:11,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:11,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:11,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:11,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:11,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:11,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:11,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:11,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:11,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:11,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:11,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:11,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:12,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:12,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:12,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:12,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:12,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:12,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:12,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:12,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:12,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:12,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:12,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:12,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:12,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:12,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:12,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:12,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:12,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:12,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:12,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:13,740 INFO L134 CoverageAnalysis]: Checked inductivity of 5073 backedges. 0 proven. 2185 refuted. 0 times theorem prover too weak. 2888 trivial. 0 not checked. [2020-11-06 22:02:13,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727632227] [2020-11-06 22:02:13,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535625771] [2020-11-06 22:02:13,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:02:13,904 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-06 22:02:13,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:02:13,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 80 conjunts are in the unsatisfiable core [2020-11-06 22:02:13,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:02:14,175 INFO L134 CoverageAnalysis]: Checked inductivity of 5073 backedges. 0 proven. 2185 refuted. 0 times theorem prover too weak. 2888 trivial. 0 not checked. [2020-11-06 22:02:14,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:02:14,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 43] total 46 [2020-11-06 22:02:14,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843709868] [2020-11-06 22:02:14,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-11-06 22:02:14,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:02:14,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-11-06 22:02:14,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=870, Invalid=1200, Unknown=0, NotChecked=0, Total=2070 [2020-11-06 22:02:14,177 INFO L87 Difference]: Start difference. First operand 142 states and 150 transitions. Second operand 46 states. [2020-11-06 22:02:17,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:02:17,023 INFO L93 Difference]: Finished difference Result 152 states and 162 transitions. [2020-11-06 22:02:17,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-11-06 22:02:17,023 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 281 [2020-11-06 22:02:17,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:02:17,025 INFO L225 Difference]: With dead ends: 152 [2020-11-06 22:02:17,025 INFO L226 Difference]: Without dead ends: 147 [2020-11-06 22:02:17,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1761 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=2808, Invalid=5202, Unknown=0, NotChecked=0, Total=8010 [2020-11-06 22:02:17,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-11-06 22:02:17,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2020-11-06 22:02:17,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-11-06 22:02:17,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 153 transitions. [2020-11-06 22:02:17,033 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 153 transitions. Word has length 281 [2020-11-06 22:02:17,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:02:17,034 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 153 transitions. [2020-11-06 22:02:17,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-11-06 22:02:17,034 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 153 transitions. [2020-11-06 22:02:17,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2020-11-06 22:02:17,035 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:02:17,036 INFO L422 BasicCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:02:17,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-11-06 22:02:17,250 INFO L429 AbstractCegarLoop]: === Iteration 41 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:02:17,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:02:17,251 INFO L82 PathProgramCache]: Analyzing trace with hash -371427231, now seen corresponding path program 39 times [2020-11-06 22:02:17,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:02:17,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296144307] [2020-11-06 22:02:17,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:02:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:17,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:02:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:17,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:02:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:17,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:17,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:17,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:17,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:17,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:17,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:17,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:17,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:18,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:18,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:18,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:18,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:18,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:18,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:18,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:18,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:18,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:18,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:18,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:18,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:18,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:18,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:18,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:18,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:18,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:18,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:19,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:19,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:19,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:19,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:19,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:19,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:19,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:19,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:19,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:19,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:19,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:19,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:19,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:19,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:19,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:19,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:19,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:19,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:19,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:20,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:20,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:20,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:21,244 INFO L134 CoverageAnalysis]: Checked inductivity of 5343 backedges. 0 proven. 2301 refuted. 0 times theorem prover too weak. 3042 trivial. 0 not checked. [2020-11-06 22:02:21,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296144307] [2020-11-06 22:02:21,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609557982] [2020-11-06 22:02:21,244 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:02:21,454 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 40 check-sat command(s) [2020-11-06 22:02:21,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:02:21,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 82 conjunts are in the unsatisfiable core [2020-11-06 22:02:21,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:02:21,675 INFO L134 CoverageAnalysis]: Checked inductivity of 5343 backedges. 0 proven. 2301 refuted. 0 times theorem prover too weak. 3042 trivial. 0 not checked. [2020-11-06 22:02:21,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:02:21,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 44] total 47 [2020-11-06 22:02:21,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756193282] [2020-11-06 22:02:21,676 INFO L461 AbstractCegarLoop]: Interpolant automaton has 47 states [2020-11-06 22:02:21,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:02:21,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2020-11-06 22:02:21,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=912, Invalid=1250, Unknown=0, NotChecked=0, Total=2162 [2020-11-06 22:02:21,677 INFO L87 Difference]: Start difference. First operand 145 states and 153 transitions. Second operand 47 states. [2020-11-06 22:02:24,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:02:24,656 INFO L93 Difference]: Finished difference Result 155 states and 165 transitions. [2020-11-06 22:02:24,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-11-06 22:02:24,657 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 288 [2020-11-06 22:02:24,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:02:24,658 INFO L225 Difference]: With dead ends: 155 [2020-11-06 22:02:24,659 INFO L226 Difference]: Without dead ends: 150 [2020-11-06 22:02:24,660 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1846 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=2939, Invalid=5433, Unknown=0, NotChecked=0, Total=8372 [2020-11-06 22:02:24,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-11-06 22:02:24,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2020-11-06 22:02:24,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-11-06 22:02:24,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 156 transitions. [2020-11-06 22:02:24,666 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 156 transitions. Word has length 288 [2020-11-06 22:02:24,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:02:24,667 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 156 transitions. [2020-11-06 22:02:24,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 47 states. [2020-11-06 22:02:24,667 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 156 transitions. [2020-11-06 22:02:24,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-11-06 22:02:24,669 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:02:24,669 INFO L422 BasicCegarLoop]: trace histogram [41, 41, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:02:24,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,40 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:02:24,884 INFO L429 AbstractCegarLoop]: === Iteration 42 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:02:24,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:02:24,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1350396506, now seen corresponding path program 40 times [2020-11-06 22:02:24,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:02:24,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650645788] [2020-11-06 22:02:24,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:02:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:24,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:02:24,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:24,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:02:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:25,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:25,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:25,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:25,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:25,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:25,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:25,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:25,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:25,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:25,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:25,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:25,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:25,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:26,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:26,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:26,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:26,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:26,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:26,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:26,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:26,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:26,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:26,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:26,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:26,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:26,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:26,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:26,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:26,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:26,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:26,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:26,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:26,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:27,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:27,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:27,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:27,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:27,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:27,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:27,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:27,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:27,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:27,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:27,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:27,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:27,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:27,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:27,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:27,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:28,927 INFO L134 CoverageAnalysis]: Checked inductivity of 5620 backedges. 0 proven. 2420 refuted. 0 times theorem prover too weak. 3200 trivial. 0 not checked. [2020-11-06 22:02:28,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650645788] [2020-11-06 22:02:28,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235659901] [2020-11-06 22:02:28,928 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:02:29,104 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-06 22:02:29,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:02:29,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 84 conjunts are in the unsatisfiable core [2020-11-06 22:02:29,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:02:29,350 INFO L134 CoverageAnalysis]: Checked inductivity of 5620 backedges. 0 proven. 2420 refuted. 0 times theorem prover too weak. 3200 trivial. 0 not checked. [2020-11-06 22:02:29,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:02:29,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 45] total 48 [2020-11-06 22:02:29,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504095204] [2020-11-06 22:02:29,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 48 states [2020-11-06 22:02:29,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:02:29,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2020-11-06 22:02:29,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=955, Invalid=1301, Unknown=0, NotChecked=0, Total=2256 [2020-11-06 22:02:29,352 INFO L87 Difference]: Start difference. First operand 148 states and 156 transitions. Second operand 48 states. [2020-11-06 22:02:32,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:02:32,422 INFO L93 Difference]: Finished difference Result 158 states and 168 transitions. [2020-11-06 22:02:32,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-11-06 22:02:32,422 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 295 [2020-11-06 22:02:32,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:02:32,424 INFO L225 Difference]: With dead ends: 158 [2020-11-06 22:02:32,424 INFO L226 Difference]: Without dead ends: 153 [2020-11-06 22:02:32,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1933 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=3073, Invalid=5669, Unknown=0, NotChecked=0, Total=8742 [2020-11-06 22:02:32,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-11-06 22:02:32,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 151. [2020-11-06 22:02:32,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-11-06 22:02:32,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 159 transitions. [2020-11-06 22:02:32,432 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 159 transitions. Word has length 295 [2020-11-06 22:02:32,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:02:32,432 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 159 transitions. [2020-11-06 22:02:32,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 48 states. [2020-11-06 22:02:32,433 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 159 transitions. [2020-11-06 22:02:32,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-11-06 22:02:32,434 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:02:32,434 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:02:32,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:02:32,649 INFO L429 AbstractCegarLoop]: === Iteration 43 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:02:32,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:02:32,650 INFO L82 PathProgramCache]: Analyzing trace with hash -340558349, now seen corresponding path program 41 times [2020-11-06 22:02:32,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:02:32,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806821522] [2020-11-06 22:02:32,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:02:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:32,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:02:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:32,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:02:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:32,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:32,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:33,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:33,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:33,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:33,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:33,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:33,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:33,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:33,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:33,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:33,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:33,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:33,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:34,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:34,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:34,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:34,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:34,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:34,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:34,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:34,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:34,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:34,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:34,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:34,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:34,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:34,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:34,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:34,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:34,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:34,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:34,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:35,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:35,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:35,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:35,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:35,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:35,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:35,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:35,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:35,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:35,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:35,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:35,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:35,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:35,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:35,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:36,756 INFO L134 CoverageAnalysis]: Checked inductivity of 5904 backedges. 0 proven. 2542 refuted. 0 times theorem prover too weak. 3362 trivial. 0 not checked. [2020-11-06 22:02:36,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806821522] [2020-11-06 22:02:36,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910268741] [2020-11-06 22:02:36,757 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:02:36,961 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2020-11-06 22:02:36,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:02:36,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 86 conjunts are in the unsatisfiable core [2020-11-06 22:02:36,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:02:37,250 INFO L134 CoverageAnalysis]: Checked inductivity of 5904 backedges. 0 proven. 2542 refuted. 0 times theorem prover too weak. 3362 trivial. 0 not checked. [2020-11-06 22:02:37,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:02:37,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 46] total 49 [2020-11-06 22:02:37,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232153356] [2020-11-06 22:02:37,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 49 states [2020-11-06 22:02:37,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:02:37,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2020-11-06 22:02:37,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=999, Invalid=1353, Unknown=0, NotChecked=0, Total=2352 [2020-11-06 22:02:37,252 INFO L87 Difference]: Start difference. First operand 151 states and 159 transitions. Second operand 49 states. [2020-11-06 22:02:40,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:02:40,428 INFO L93 Difference]: Finished difference Result 161 states and 171 transitions. [2020-11-06 22:02:40,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-11-06 22:02:40,428 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 302 [2020-11-06 22:02:40,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:02:40,430 INFO L225 Difference]: With dead ends: 161 [2020-11-06 22:02:40,430 INFO L226 Difference]: Without dead ends: 156 [2020-11-06 22:02:40,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2022 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=3210, Invalid=5910, Unknown=0, NotChecked=0, Total=9120 [2020-11-06 22:02:40,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-11-06 22:02:40,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 154. [2020-11-06 22:02:40,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-11-06 22:02:40,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 162 transitions. [2020-11-06 22:02:40,438 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 162 transitions. Word has length 302 [2020-11-06 22:02:40,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:02:40,439 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 162 transitions. [2020-11-06 22:02:40,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 49 states. [2020-11-06 22:02:40,439 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 162 transitions. [2020-11-06 22:02:40,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-11-06 22:02:40,441 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:02:40,441 INFO L422 BasicCegarLoop]: trace histogram [43, 43, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:02:40,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2020-11-06 22:02:40,647 INFO L429 AbstractCegarLoop]: === Iteration 44 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:02:40,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:02:40,648 INFO L82 PathProgramCache]: Analyzing trace with hash -263773548, now seen corresponding path program 42 times [2020-11-06 22:02:40,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:02:40,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401602393] [2020-11-06 22:02:40,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:02:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:40,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:02:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:40,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:02:40,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:40,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:40,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:41,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:41,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:41,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:41,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:41,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:41,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:41,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:41,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:41,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:41,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:41,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:41,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:42,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:42,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:42,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:42,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:42,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:42,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:42,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:42,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:42,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:42,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:42,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:42,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:42,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:42,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:42,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:42,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:42,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:43,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:43,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:43,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:43,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:43,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:43,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:43,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:43,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:43,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:43,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:43,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:43,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:43,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:43,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:43,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:43,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:43,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:43,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:44,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:44,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:45,055 INFO L134 CoverageAnalysis]: Checked inductivity of 6195 backedges. 0 proven. 2667 refuted. 0 times theorem prover too weak. 3528 trivial. 0 not checked. [2020-11-06 22:02:45,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401602393] [2020-11-06 22:02:45,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553734875] [2020-11-06 22:02:45,056 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:02:45,283 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 43 check-sat command(s) [2020-11-06 22:02:45,283 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:02:45,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 88 conjunts are in the unsatisfiable core [2020-11-06 22:02:45,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:02:45,516 INFO L134 CoverageAnalysis]: Checked inductivity of 6195 backedges. 0 proven. 2667 refuted. 0 times theorem prover too weak. 3528 trivial. 0 not checked. [2020-11-06 22:02:45,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:02:45,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 47] total 50 [2020-11-06 22:02:45,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855605233] [2020-11-06 22:02:45,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 50 states [2020-11-06 22:02:45,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:02:45,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2020-11-06 22:02:45,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1044, Invalid=1406, Unknown=0, NotChecked=0, Total=2450 [2020-11-06 22:02:45,518 INFO L87 Difference]: Start difference. First operand 154 states and 162 transitions. Second operand 50 states. [2020-11-06 22:02:48,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:02:48,805 INFO L93 Difference]: Finished difference Result 164 states and 174 transitions. [2020-11-06 22:02:48,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-11-06 22:02:48,806 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 309 [2020-11-06 22:02:48,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:02:48,808 INFO L225 Difference]: With dead ends: 164 [2020-11-06 22:02:48,808 INFO L226 Difference]: Without dead ends: 159 [2020-11-06 22:02:48,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2113 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=3350, Invalid=6156, Unknown=0, NotChecked=0, Total=9506 [2020-11-06 22:02:48,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-11-06 22:02:48,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 157. [2020-11-06 22:02:48,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-11-06 22:02:48,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 165 transitions. [2020-11-06 22:02:48,816 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 165 transitions. Word has length 309 [2020-11-06 22:02:48,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:02:48,817 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 165 transitions. [2020-11-06 22:02:48,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 50 states. [2020-11-06 22:02:48,817 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 165 transitions. [2020-11-06 22:02:48,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-11-06 22:02:48,819 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:02:48,819 INFO L422 BasicCegarLoop]: trace histogram [44, 44, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:02:49,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:02:49,035 INFO L429 AbstractCegarLoop]: === Iteration 45 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:02:49,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:02:49,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1810196859, now seen corresponding path program 43 times [2020-11-06 22:02:49,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:02:49,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116297011] [2020-11-06 22:02:49,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:02:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:49,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:02:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:49,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:02:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:49,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:49,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:49,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:49,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:49,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:49,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:49,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:49,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:50,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:50,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:50,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:50,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:50,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:50,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:50,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:50,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:50,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:50,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:50,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:51,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:51,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:51,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:51,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:51,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:51,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:51,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:51,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:51,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:51,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:51,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:51,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:51,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:51,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:51,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:52,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:52,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:52,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:52,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:52,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:52,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:52,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:52,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:52,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:52,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:52,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:52,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:52,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:53,695 INFO L134 CoverageAnalysis]: Checked inductivity of 6493 backedges. 0 proven. 2795 refuted. 0 times theorem prover too weak. 3698 trivial. 0 not checked. [2020-11-06 22:02:53,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116297011] [2020-11-06 22:02:53,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404958630] [2020-11-06 22:02:53,695 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:02:53,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:53,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 90 conjunts are in the unsatisfiable core [2020-11-06 22:02:53,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:02:54,137 INFO L134 CoverageAnalysis]: Checked inductivity of 6493 backedges. 0 proven. 2795 refuted. 0 times theorem prover too weak. 3698 trivial. 0 not checked. [2020-11-06 22:02:54,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:02:54,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 48] total 51 [2020-11-06 22:02:54,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426345894] [2020-11-06 22:02:54,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 51 states [2020-11-06 22:02:54,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:02:54,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2020-11-06 22:02:54,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1090, Invalid=1460, Unknown=0, NotChecked=0, Total=2550 [2020-11-06 22:02:54,139 INFO L87 Difference]: Start difference. First operand 157 states and 165 transitions. Second operand 51 states. [2020-11-06 22:02:57,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:02:57,545 INFO L93 Difference]: Finished difference Result 167 states and 177 transitions. [2020-11-06 22:02:57,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-11-06 22:02:57,546 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 316 [2020-11-06 22:02:57,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:02:57,548 INFO L225 Difference]: With dead ends: 167 [2020-11-06 22:02:57,548 INFO L226 Difference]: Without dead ends: 162 [2020-11-06 22:02:57,549 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2206 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=3493, Invalid=6407, Unknown=0, NotChecked=0, Total=9900 [2020-11-06 22:02:57,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-11-06 22:02:57,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 160. [2020-11-06 22:02:57,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-11-06 22:02:57,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 168 transitions. [2020-11-06 22:02:57,555 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 168 transitions. Word has length 316 [2020-11-06 22:02:57,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:02:57,556 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 168 transitions. [2020-11-06 22:02:57,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 51 states. [2020-11-06 22:02:57,556 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 168 transitions. [2020-11-06 22:02:57,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2020-11-06 22:02:57,558 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:02:57,558 INFO L422 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:02:57,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:02:57,772 INFO L429 AbstractCegarLoop]: === Iteration 46 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:02:57,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:02:57,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1273048194, now seen corresponding path program 44 times [2020-11-06 22:02:57,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:02:57,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588761558] [2020-11-06 22:02:57,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:02:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:57,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:02:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:57,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:02:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:58,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:58,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:58,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:58,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:58,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:58,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:58,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:58,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:58,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:58,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:58,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:58,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:59,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:59,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:59,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:59,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:59,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:59,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:59,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:59,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:59,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:59,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:59,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:59,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:59,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:59,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:59,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:59,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:02:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:02:59,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:00,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:00,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:00,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:00,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:00,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:00,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:00,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:00,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:00,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:00,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:00,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:00,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:00,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:00,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:00,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:00,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:00,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:01,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:01,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:01,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:01,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:01,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:01,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:01,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:01,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:01,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:02,614 INFO L134 CoverageAnalysis]: Checked inductivity of 6798 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 3872 trivial. 0 not checked. [2020-11-06 22:03:02,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588761558] [2020-11-06 22:03:02,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176403085] [2020-11-06 22:03:02,615 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:03:02,803 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-06 22:03:02,804 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:03:02,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 945 conjuncts, 92 conjunts are in the unsatisfiable core [2020-11-06 22:03:02,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:03:03,080 INFO L134 CoverageAnalysis]: Checked inductivity of 6798 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 3872 trivial. 0 not checked. [2020-11-06 22:03:03,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:03:03,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 49] total 52 [2020-11-06 22:03:03,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135322466] [2020-11-06 22:03:03,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 52 states [2020-11-06 22:03:03,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:03:03,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2020-11-06 22:03:03,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1137, Invalid=1515, Unknown=0, NotChecked=0, Total=2652 [2020-11-06 22:03:03,081 INFO L87 Difference]: Start difference. First operand 160 states and 168 transitions. Second operand 52 states. [2020-11-06 22:03:06,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:03:06,603 INFO L93 Difference]: Finished difference Result 170 states and 180 transitions. [2020-11-06 22:03:06,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-11-06 22:03:06,604 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 323 [2020-11-06 22:03:06,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:03:06,606 INFO L225 Difference]: With dead ends: 170 [2020-11-06 22:03:06,606 INFO L226 Difference]: Without dead ends: 165 [2020-11-06 22:03:06,607 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2301 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=3639, Invalid=6663, Unknown=0, NotChecked=0, Total=10302 [2020-11-06 22:03:06,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-11-06 22:03:06,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 163. [2020-11-06 22:03:06,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-11-06 22:03:06,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 171 transitions. [2020-11-06 22:03:06,614 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 171 transitions. Word has length 323 [2020-11-06 22:03:06,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:03:06,614 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 171 transitions. [2020-11-06 22:03:06,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 52 states. [2020-11-06 22:03:06,614 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 171 transitions. [2020-11-06 22:03:06,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-11-06 22:03:06,616 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:03:06,617 INFO L422 BasicCegarLoop]: trace histogram [46, 46, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:03:06,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2020-11-06 22:03:06,831 INFO L429 AbstractCegarLoop]: === Iteration 47 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:03:06,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:03:06,832 INFO L82 PathProgramCache]: Analyzing trace with hash 821994007, now seen corresponding path program 45 times [2020-11-06 22:03:06,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:03:06,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369541829] [2020-11-06 22:03:06,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:03:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:06,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:03:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:06,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:03:07,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:07,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:07,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:07,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:07,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:07,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:07,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:07,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:07,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:07,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:07,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:07,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:08,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:08,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:08,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:08,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:08,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:08,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:08,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:08,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:08,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:08,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:08,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:08,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:08,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:09,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:09,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:09,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:09,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:09,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:09,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:09,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:09,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:09,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:09,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:09,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:09,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:09,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:09,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:09,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:09,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:09,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:09,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:09,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:09,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:09,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:10,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:10,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:10,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:10,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:10,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:10,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:10,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:10,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:10,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:10,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:11,896 INFO L134 CoverageAnalysis]: Checked inductivity of 7110 backedges. 0 proven. 3060 refuted. 0 times theorem prover too weak. 4050 trivial. 0 not checked. [2020-11-06 22:03:11,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369541829] [2020-11-06 22:03:11,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347015165] [2020-11-06 22:03:11,896 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:03:12,137 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 46 check-sat command(s) [2020-11-06 22:03:12,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:03:12,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 94 conjunts are in the unsatisfiable core [2020-11-06 22:03:12,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:03:12,393 INFO L134 CoverageAnalysis]: Checked inductivity of 7110 backedges. 0 proven. 3060 refuted. 0 times theorem prover too weak. 4050 trivial. 0 not checked. [2020-11-06 22:03:12,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:03:12,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 50] total 53 [2020-11-06 22:03:12,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142267997] [2020-11-06 22:03:12,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 53 states [2020-11-06 22:03:12,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:03:12,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2020-11-06 22:03:12,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1185, Invalid=1571, Unknown=0, NotChecked=0, Total=2756 [2020-11-06 22:03:12,394 INFO L87 Difference]: Start difference. First operand 163 states and 171 transitions. Second operand 53 states. [2020-11-06 22:03:15,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:03:15,966 INFO L93 Difference]: Finished difference Result 173 states and 183 transitions. [2020-11-06 22:03:15,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-11-06 22:03:15,967 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 330 [2020-11-06 22:03:15,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:03:15,969 INFO L225 Difference]: With dead ends: 173 [2020-11-06 22:03:15,969 INFO L226 Difference]: Without dead ends: 168 [2020-11-06 22:03:15,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2398 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=3788, Invalid=6924, Unknown=0, NotChecked=0, Total=10712 [2020-11-06 22:03:15,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-11-06 22:03:15,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 166. [2020-11-06 22:03:15,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-11-06 22:03:15,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 174 transitions. [2020-11-06 22:03:15,979 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 174 transitions. Word has length 330 [2020-11-06 22:03:15,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:03:15,979 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 174 transitions. [2020-11-06 22:03:15,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 53 states. [2020-11-06 22:03:15,979 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 174 transitions. [2020-11-06 22:03:15,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-11-06 22:03:15,982 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:03:15,982 INFO L422 BasicCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:03:16,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2020-11-06 22:03:16,195 INFO L429 AbstractCegarLoop]: === Iteration 48 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:03:16,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:03:16,196 INFO L82 PathProgramCache]: Analyzing trace with hash 95671152, now seen corresponding path program 46 times [2020-11-06 22:03:16,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:03:16,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941778980] [2020-11-06 22:03:16,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:03:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:16,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:03:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:16,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:03:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:16,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:16,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:16,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:16,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:16,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:17,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:17,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:17,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:17,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:17,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:17,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:17,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:17,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:17,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:17,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:17,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:17,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:17,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:18,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:18,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:18,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:18,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:18,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:18,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:18,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:18,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:18,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:18,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:18,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:18,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:18,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:18,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:18,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:19,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:19,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:19,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:19,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:19,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:19,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:19,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:19,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:19,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:19,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:19,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:19,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:19,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:19,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:19,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:19,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:19,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:19,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:20,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:20,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:20,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:20,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:20,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:20,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:21,634 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 4232 trivial. 0 not checked. [2020-11-06 22:03:21,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941778980] [2020-11-06 22:03:21,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533197661] [2020-11-06 22:03:21,635 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:03:21,818 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-06 22:03:21,818 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:03:21,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 96 conjunts are in the unsatisfiable core [2020-11-06 22:03:21,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:03:22,150 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 4232 trivial. 0 not checked. [2020-11-06 22:03:22,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:03:22,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 51] total 54 [2020-11-06 22:03:22,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075597647] [2020-11-06 22:03:22,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 54 states [2020-11-06 22:03:22,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:03:22,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2020-11-06 22:03:22,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1234, Invalid=1628, Unknown=0, NotChecked=0, Total=2862 [2020-11-06 22:03:22,153 INFO L87 Difference]: Start difference. First operand 166 states and 174 transitions. Second operand 54 states. [2020-11-06 22:03:25,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:03:25,885 INFO L93 Difference]: Finished difference Result 176 states and 186 transitions. [2020-11-06 22:03:25,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-11-06 22:03:25,886 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 337 [2020-11-06 22:03:25,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:03:25,887 INFO L225 Difference]: With dead ends: 176 [2020-11-06 22:03:25,888 INFO L226 Difference]: Without dead ends: 171 [2020-11-06 22:03:25,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2497 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=3940, Invalid=7190, Unknown=0, NotChecked=0, Total=11130 [2020-11-06 22:03:25,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-11-06 22:03:25,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 169. [2020-11-06 22:03:25,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-11-06 22:03:25,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 177 transitions. [2020-11-06 22:03:25,896 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 177 transitions. Word has length 337 [2020-11-06 22:03:25,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:03:25,897 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 177 transitions. [2020-11-06 22:03:25,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 54 states. [2020-11-06 22:03:25,897 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 177 transitions. [2020-11-06 22:03:25,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-11-06 22:03:25,899 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:03:25,899 INFO L422 BasicCegarLoop]: trace histogram [48, 48, 47, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:03:26,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2020-11-06 22:03:26,114 INFO L429 AbstractCegarLoop]: === Iteration 49 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:03:26,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:03:26,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1741913943, now seen corresponding path program 47 times [2020-11-06 22:03:26,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:03:26,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507198676] [2020-11-06 22:03:26,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:03:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:26,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:03:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:26,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:03:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:26,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:26,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:26,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:26,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:26,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:26,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:26,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:27,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:27,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:27,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:27,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:27,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:27,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:27,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:27,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:27,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:27,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:27,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:27,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:28,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:28,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:28,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:28,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:28,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:28,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:28,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:28,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:28,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:28,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:28,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:28,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:28,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:28,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:29,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:29,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:29,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:29,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:29,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:29,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:29,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:29,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:29,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:29,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:29,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:29,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:29,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:29,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:29,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:29,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:29,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:30,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:30,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:30,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:30,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:30,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:30,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:31,717 INFO L134 CoverageAnalysis]: Checked inductivity of 7755 backedges. 0 proven. 3337 refuted. 0 times theorem prover too weak. 4418 trivial. 0 not checked. [2020-11-06 22:03:31,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507198676] [2020-11-06 22:03:31,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851355598] [2020-11-06 22:03:31,717 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:03:31,957 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2020-11-06 22:03:31,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:03:31,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 1002 conjuncts, 98 conjunts are in the unsatisfiable core [2020-11-06 22:03:31,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:03:32,224 INFO L134 CoverageAnalysis]: Checked inductivity of 7755 backedges. 0 proven. 3337 refuted. 0 times theorem prover too weak. 4418 trivial. 0 not checked. [2020-11-06 22:03:32,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:03:32,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 52] total 55 [2020-11-06 22:03:32,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865401277] [2020-11-06 22:03:32,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 55 states [2020-11-06 22:03:32,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:03:32,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2020-11-06 22:03:32,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1284, Invalid=1686, Unknown=0, NotChecked=0, Total=2970 [2020-11-06 22:03:32,226 INFO L87 Difference]: Start difference. First operand 169 states and 177 transitions. Second operand 55 states. [2020-11-06 22:03:36,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:03:36,056 INFO L93 Difference]: Finished difference Result 179 states and 189 transitions. [2020-11-06 22:03:36,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-11-06 22:03:36,057 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 344 [2020-11-06 22:03:36,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:03:36,062 INFO L225 Difference]: With dead ends: 179 [2020-11-06 22:03:36,062 INFO L226 Difference]: Without dead ends: 174 [2020-11-06 22:03:36,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2598 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=4095, Invalid=7461, Unknown=0, NotChecked=0, Total=11556 [2020-11-06 22:03:36,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-11-06 22:03:36,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 172. [2020-11-06 22:03:36,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-11-06 22:03:36,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 180 transitions. [2020-11-06 22:03:36,073 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 180 transitions. Word has length 344 [2020-11-06 22:03:36,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:03:36,073 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 180 transitions. [2020-11-06 22:03:36,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 55 states. [2020-11-06 22:03:36,074 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 180 transitions. [2020-11-06 22:03:36,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2020-11-06 22:03:36,076 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:03:36,076 INFO L422 BasicCegarLoop]: trace histogram [49, 49, 48, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:03:36,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:03:36,290 INFO L429 AbstractCegarLoop]: === Iteration 50 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:03:36,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:03:36,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1682061150, now seen corresponding path program 48 times [2020-11-06 22:03:36,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:03:36,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939601608] [2020-11-06 22:03:36,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:03:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:36,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:03:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:36,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:03:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:36,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:36,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:36,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:36,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:36,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:37,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:37,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:37,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:37,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:37,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:37,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:37,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:37,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:37,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:37,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:37,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:37,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:37,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:37,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:38,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:38,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:38,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:38,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:38,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:38,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:38,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:38,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:38,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:38,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:38,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:38,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:38,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:38,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:39,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:39,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:39,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:39,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:39,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:39,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:39,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:39,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:39,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:39,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:39,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:39,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:39,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:39,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:39,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:39,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:40,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:40,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:40,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:40,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:40,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:40,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:40,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:40,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:40,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:40,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:40,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:40,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:40,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:42,286 INFO L134 CoverageAnalysis]: Checked inductivity of 8088 backedges. 0 proven. 3480 refuted. 0 times theorem prover too weak. 4608 trivial. 0 not checked. [2020-11-06 22:03:42,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939601608] [2020-11-06 22:03:42,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579590317] [2020-11-06 22:03:42,286 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:03:42,534 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 49 check-sat command(s) [2020-11-06 22:03:42,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:03:42,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 100 conjunts are in the unsatisfiable core [2020-11-06 22:03:42,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:03:42,823 INFO L134 CoverageAnalysis]: Checked inductivity of 8088 backedges. 0 proven. 3480 refuted. 0 times theorem prover too weak. 4608 trivial. 0 not checked. [2020-11-06 22:03:42,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:03:42,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 53] total 56 [2020-11-06 22:03:42,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736869969] [2020-11-06 22:03:42,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 56 states [2020-11-06 22:03:42,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:03:42,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2020-11-06 22:03:42,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1335, Invalid=1745, Unknown=0, NotChecked=0, Total=3080 [2020-11-06 22:03:42,825 INFO L87 Difference]: Start difference. First operand 172 states and 180 transitions. Second operand 56 states. [2020-11-06 22:03:46,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:03:46,834 INFO L93 Difference]: Finished difference Result 182 states and 192 transitions. [2020-11-06 22:03:46,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-11-06 22:03:46,835 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 351 [2020-11-06 22:03:46,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:03:46,837 INFO L225 Difference]: With dead ends: 182 [2020-11-06 22:03:46,837 INFO L226 Difference]: Without dead ends: 177 [2020-11-06 22:03:46,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2701 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=4253, Invalid=7737, Unknown=0, NotChecked=0, Total=11990 [2020-11-06 22:03:46,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-11-06 22:03:46,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 175. [2020-11-06 22:03:46,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-11-06 22:03:46,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 183 transitions. [2020-11-06 22:03:46,846 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 183 transitions. Word has length 351 [2020-11-06 22:03:46,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:03:46,846 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 183 transitions. [2020-11-06 22:03:46,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 56 states. [2020-11-06 22:03:46,846 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 183 transitions. [2020-11-06 22:03:46,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2020-11-06 22:03:46,848 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:03:46,849 INFO L422 BasicCegarLoop]: trace histogram [50, 50, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:03:47,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2020-11-06 22:03:47,063 INFO L429 AbstractCegarLoop]: === Iteration 51 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:03:47,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:03:47,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1364267579, now seen corresponding path program 49 times [2020-11-06 22:03:47,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:03:47,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817353701] [2020-11-06 22:03:47,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:03:47,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:47,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:03:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:47,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:03:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:47,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:47,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:47,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:47,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:47,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:47,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:47,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:47,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:48,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:48,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:48,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:48,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:48,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:48,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:48,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:48,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:48,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:48,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:49,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:49,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:49,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:49,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:49,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:49,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:49,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:49,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:49,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:49,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:49,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:49,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:50,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:50,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:50,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:50,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:50,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:50,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:50,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:50,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:50,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:50,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:50,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:50,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:50,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:50,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:50,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:50,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:50,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:51,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:51,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:51,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:51,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:51,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:51,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:51,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:51,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:51,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:51,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:53,277 INFO L134 CoverageAnalysis]: Checked inductivity of 8428 backedges. 0 proven. 3626 refuted. 0 times theorem prover too weak. 4802 trivial. 0 not checked. [2020-11-06 22:03:53,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817353701] [2020-11-06 22:03:53,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901787426] [2020-11-06 22:03:53,278 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:03:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:53,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 102 conjunts are in the unsatisfiable core [2020-11-06 22:03:53,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:03:53,839 INFO L134 CoverageAnalysis]: Checked inductivity of 8428 backedges. 0 proven. 3626 refuted. 0 times theorem prover too weak. 4802 trivial. 0 not checked. [2020-11-06 22:03:53,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:03:53,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 54] total 57 [2020-11-06 22:03:53,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121639153] [2020-11-06 22:03:53,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 57 states [2020-11-06 22:03:53,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:03:53,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2020-11-06 22:03:53,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1387, Invalid=1805, Unknown=0, NotChecked=0, Total=3192 [2020-11-06 22:03:53,842 INFO L87 Difference]: Start difference. First operand 175 states and 183 transitions. Second operand 57 states. [2020-11-06 22:03:57,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:03:57,861 INFO L93 Difference]: Finished difference Result 185 states and 195 transitions. [2020-11-06 22:03:57,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2020-11-06 22:03:57,862 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 358 [2020-11-06 22:03:57,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:03:57,864 INFO L225 Difference]: With dead ends: 185 [2020-11-06 22:03:57,864 INFO L226 Difference]: Without dead ends: 180 [2020-11-06 22:03:57,866 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2806 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=4414, Invalid=8018, Unknown=0, NotChecked=0, Total=12432 [2020-11-06 22:03:57,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-11-06 22:03:57,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 178. [2020-11-06 22:03:57,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-11-06 22:03:57,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 186 transitions. [2020-11-06 22:03:57,872 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 186 transitions. Word has length 358 [2020-11-06 22:03:57,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:03:57,873 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 186 transitions. [2020-11-06 22:03:57,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 57 states. [2020-11-06 22:03:57,873 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 186 transitions. [2020-11-06 22:03:57,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2020-11-06 22:03:57,875 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:03:57,876 INFO L422 BasicCegarLoop]: trace histogram [51, 51, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:03:58,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,50 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:03:58,091 INFO L429 AbstractCegarLoop]: === Iteration 52 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:03:58,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:03:58,092 INFO L82 PathProgramCache]: Analyzing trace with hash 120551500, now seen corresponding path program 50 times [2020-11-06 22:03:58,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:03:58,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072662993] [2020-11-06 22:03:58,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:03:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:58,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:03:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:58,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:03:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:58,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:58,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:58,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:58,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:58,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:58,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:59,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:59,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:59,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:59,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:59,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:59,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:59,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:59,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:59,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:03:59,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:03:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:00,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:00,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:00,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:00,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:00,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:00,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:00,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:00,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:00,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:00,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:00,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:00,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:01,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:01,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:01,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:01,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:01,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:01,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:01,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:01,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:01,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:01,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:01,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:01,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:01,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:02,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:02,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:02,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:02,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:02,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:02,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:02,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:02,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:02,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:02,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:02,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:02,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:02,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:02,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:02,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:02,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:02,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:04,611 INFO L134 CoverageAnalysis]: Checked inductivity of 8775 backedges. 0 proven. 3775 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2020-11-06 22:04:04,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072662993] [2020-11-06 22:04:04,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202405850] [2020-11-06 22:04:04,611 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:04:04,815 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-06 22:04:04,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:04:04,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 104 conjunts are in the unsatisfiable core [2020-11-06 22:04:04,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:04:05,119 INFO L134 CoverageAnalysis]: Checked inductivity of 8775 backedges. 0 proven. 3775 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2020-11-06 22:04:05,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:04:05,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 55] total 58 [2020-11-06 22:04:05,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620434237] [2020-11-06 22:04:05,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 58 states [2020-11-06 22:04:05,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:04:05,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2020-11-06 22:04:05,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1440, Invalid=1866, Unknown=0, NotChecked=0, Total=3306 [2020-11-06 22:04:05,122 INFO L87 Difference]: Start difference. First operand 178 states and 186 transitions. Second operand 58 states. [2020-11-06 22:04:09,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:04:09,246 INFO L93 Difference]: Finished difference Result 188 states and 198 transitions. [2020-11-06 22:04:09,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-11-06 22:04:09,247 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 365 [2020-11-06 22:04:09,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:04:09,249 INFO L225 Difference]: With dead ends: 188 [2020-11-06 22:04:09,249 INFO L226 Difference]: Without dead ends: 183 [2020-11-06 22:04:09,252 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 578 GetRequests, 466 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2913 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=4578, Invalid=8304, Unknown=0, NotChecked=0, Total=12882 [2020-11-06 22:04:09,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-11-06 22:04:09,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 181. [2020-11-06 22:04:09,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-11-06 22:04:09,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 189 transitions. [2020-11-06 22:04:09,258 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 189 transitions. Word has length 365 [2020-11-06 22:04:09,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:04:09,259 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 189 transitions. [2020-11-06 22:04:09,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 58 states. [2020-11-06 22:04:09,259 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 189 transitions. [2020-11-06 22:04:09,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2020-11-06 22:04:09,261 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:04:09,262 INFO L422 BasicCegarLoop]: trace histogram [52, 52, 51, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:04:09,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:04:09,477 INFO L429 AbstractCegarLoop]: === Iteration 53 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:04:09,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:04:09,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1074186547, now seen corresponding path program 51 times [2020-11-06 22:04:09,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:04:09,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649849548] [2020-11-06 22:04:09,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:04:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:09,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:04:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:09,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:04:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:09,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:09,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:10,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:10,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:10,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:10,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:10,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:10,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:10,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:10,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:10,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:10,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:11,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:11,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:11,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:11,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:11,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:11,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:11,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:11,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:11,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:11,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:11,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:12,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:12,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:12,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:12,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:12,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:12,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:12,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:12,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:12,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:12,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:12,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:12,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:12,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:13,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:13,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:13,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:13,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:13,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:13,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:13,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:13,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:13,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:13,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:13,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:13,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:13,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:13,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:13,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:14,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:14,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:14,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:14,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:14,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:14,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:14,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:14,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:14,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:16,337 INFO L134 CoverageAnalysis]: Checked inductivity of 9129 backedges. 0 proven. 3927 refuted. 0 times theorem prover too weak. 5202 trivial. 0 not checked. [2020-11-06 22:04:16,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649849548] [2020-11-06 22:04:16,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052476666] [2020-11-06 22:04:16,337 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:04:16,604 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 52 check-sat command(s) [2020-11-06 22:04:16,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:04:16,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 106 conjunts are in the unsatisfiable core [2020-11-06 22:04:16,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:04:16,906 INFO L134 CoverageAnalysis]: Checked inductivity of 9129 backedges. 0 proven. 3927 refuted. 0 times theorem prover too weak. 5202 trivial. 0 not checked. [2020-11-06 22:04:16,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:04:16,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 56] total 59 [2020-11-06 22:04:16,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941165881] [2020-11-06 22:04:16,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 59 states [2020-11-06 22:04:16,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:04:16,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2020-11-06 22:04:16,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1494, Invalid=1928, Unknown=0, NotChecked=0, Total=3422 [2020-11-06 22:04:16,909 INFO L87 Difference]: Start difference. First operand 181 states and 189 transitions. Second operand 59 states. [2020-11-06 22:04:21,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:04:21,236 INFO L93 Difference]: Finished difference Result 191 states and 201 transitions. [2020-11-06 22:04:21,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-11-06 22:04:21,236 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 372 [2020-11-06 22:04:21,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:04:21,238 INFO L225 Difference]: With dead ends: 191 [2020-11-06 22:04:21,238 INFO L226 Difference]: Without dead ends: 186 [2020-11-06 22:04:21,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 589 GetRequests, 475 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3022 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=4745, Invalid=8595, Unknown=0, NotChecked=0, Total=13340 [2020-11-06 22:04:21,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-11-06 22:04:21,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 184. [2020-11-06 22:04:21,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-11-06 22:04:21,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 192 transitions. [2020-11-06 22:04:21,246 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 192 transitions. Word has length 372 [2020-11-06 22:04:21,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:04:21,246 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 192 transitions. [2020-11-06 22:04:21,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 59 states. [2020-11-06 22:04:21,246 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 192 transitions. [2020-11-06 22:04:21,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2020-11-06 22:04:21,248 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:04:21,249 INFO L422 BasicCegarLoop]: trace histogram [53, 53, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:04:21,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2020-11-06 22:04:21,462 INFO L429 AbstractCegarLoop]: === Iteration 54 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:04:21,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:04:21,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1027520058, now seen corresponding path program 52 times [2020-11-06 22:04:21,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:04:21,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389357442] [2020-11-06 22:04:21,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:04:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:21,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:04:21,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:21,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:04:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:21,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:21,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:22,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:22,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:22,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:22,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:22,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:22,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:22,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:22,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:22,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:23,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:23,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:23,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:23,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:23,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:23,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:23,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:23,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:23,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:23,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:23,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:23,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:24,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:24,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:24,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:24,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:24,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:24,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:24,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:24,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:24,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:24,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:24,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:24,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:25,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:25,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:25,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:25,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:25,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:25,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:25,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:25,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:25,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:25,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:25,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:25,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:25,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:26,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:26,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:26,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:26,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:26,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:26,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:26,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:26,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:26,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:26,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:26,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:28,682 INFO L134 CoverageAnalysis]: Checked inductivity of 9490 backedges. 0 proven. 4082 refuted. 0 times theorem prover too weak. 5408 trivial. 0 not checked. [2020-11-06 22:04:28,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389357442] [2020-11-06 22:04:28,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169113509] [2020-11-06 22:04:28,682 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:04:28,899 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-06 22:04:28,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:04:28,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 108 conjunts are in the unsatisfiable core [2020-11-06 22:04:28,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:04:29,273 INFO L134 CoverageAnalysis]: Checked inductivity of 9490 backedges. 0 proven. 4082 refuted. 0 times theorem prover too weak. 5408 trivial. 0 not checked. [2020-11-06 22:04:29,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:04:29,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 57] total 60 [2020-11-06 22:04:29,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060710459] [2020-11-06 22:04:29,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 60 states [2020-11-06 22:04:29,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:04:29,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2020-11-06 22:04:29,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1549, Invalid=1991, Unknown=0, NotChecked=0, Total=3540 [2020-11-06 22:04:29,276 INFO L87 Difference]: Start difference. First operand 184 states and 192 transitions. Second operand 60 states. [2020-11-06 22:04:33,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:04:33,677 INFO L93 Difference]: Finished difference Result 194 states and 204 transitions. [2020-11-06 22:04:33,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-11-06 22:04:33,678 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 379 [2020-11-06 22:04:33,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:04:33,680 INFO L225 Difference]: With dead ends: 194 [2020-11-06 22:04:33,680 INFO L226 Difference]: Without dead ends: 189 [2020-11-06 22:04:33,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3133 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=4915, Invalid=8891, Unknown=0, NotChecked=0, Total=13806 [2020-11-06 22:04:33,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-11-06 22:04:33,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 187. [2020-11-06 22:04:33,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-11-06 22:04:33,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 195 transitions. [2020-11-06 22:04:33,688 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 195 transitions. Word has length 379 [2020-11-06 22:04:33,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:04:33,689 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 195 transitions. [2020-11-06 22:04:33,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 60 states. [2020-11-06 22:04:33,689 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 195 transitions. [2020-11-06 22:04:33,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2020-11-06 22:04:33,691 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:04:33,691 INFO L422 BasicCegarLoop]: trace histogram [54, 54, 53, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:04:33,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,53 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:04:33,905 INFO L429 AbstractCegarLoop]: === Iteration 55 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:04:33,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:04:33,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1301401183, now seen corresponding path program 53 times [2020-11-06 22:04:33,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:04:33,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405049431] [2020-11-06 22:04:33,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:04:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:34,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:04:34,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:34,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:04:34,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:34,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:34,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:34,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:34,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:34,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:35,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:35,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:35,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:35,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:35,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:35,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:35,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:35,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:35,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:36,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:36,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:36,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:36,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:36,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:36,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:36,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:36,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:36,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:36,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:37,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:37,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:37,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:37,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:37,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:37,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:37,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:37,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:37,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:37,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:37,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:37,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:37,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:38,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:38,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:38,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:38,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:38,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:38,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:38,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:38,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:38,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:38,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:38,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:38,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:38,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:39,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:39,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:39,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:39,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:39,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:39,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:39,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:39,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:39,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:39,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:41,647 INFO L134 CoverageAnalysis]: Checked inductivity of 9858 backedges. 0 proven. 4240 refuted. 0 times theorem prover too weak. 5618 trivial. 0 not checked. [2020-11-06 22:04:41,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405049431] [2020-11-06 22:04:41,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816939856] [2020-11-06 22:04:41,648 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:04:41,913 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 54 check-sat command(s) [2020-11-06 22:04:41,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:04:41,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 1116 conjuncts, 110 conjunts are in the unsatisfiable core [2020-11-06 22:04:41,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:04:42,262 INFO L134 CoverageAnalysis]: Checked inductivity of 9858 backedges. 0 proven. 4240 refuted. 0 times theorem prover too weak. 5618 trivial. 0 not checked. [2020-11-06 22:04:42,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:04:42,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 58] total 61 [2020-11-06 22:04:42,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936374965] [2020-11-06 22:04:42,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 61 states [2020-11-06 22:04:42,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:04:42,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2020-11-06 22:04:42,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1605, Invalid=2055, Unknown=0, NotChecked=0, Total=3660 [2020-11-06 22:04:42,264 INFO L87 Difference]: Start difference. First operand 187 states and 195 transitions. Second operand 61 states. [2020-11-06 22:04:46,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:04:46,848 INFO L93 Difference]: Finished difference Result 197 states and 207 transitions. [2020-11-06 22:04:46,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-11-06 22:04:46,849 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 386 [2020-11-06 22:04:46,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:04:46,850 INFO L225 Difference]: With dead ends: 197 [2020-11-06 22:04:46,850 INFO L226 Difference]: Without dead ends: 192 [2020-11-06 22:04:46,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3246 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=5088, Invalid=9192, Unknown=0, NotChecked=0, Total=14280 [2020-11-06 22:04:46,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-11-06 22:04:46,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 190. [2020-11-06 22:04:46,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-11-06 22:04:46,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 198 transitions. [2020-11-06 22:04:46,858 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 198 transitions. Word has length 386 [2020-11-06 22:04:46,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:04:46,858 INFO L481 AbstractCegarLoop]: Abstraction has 190 states and 198 transitions. [2020-11-06 22:04:46,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 61 states. [2020-11-06 22:04:46,858 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 198 transitions. [2020-11-06 22:04:46,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2020-11-06 22:04:46,861 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:04:46,861 INFO L422 BasicCegarLoop]: trace histogram [55, 55, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:04:47,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2020-11-06 22:04:47,075 INFO L429 AbstractCegarLoop]: === Iteration 56 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:04:47,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:04:47,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1515393320, now seen corresponding path program 54 times [2020-11-06 22:04:47,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:04:47,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902860210] [2020-11-06 22:04:47,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:04:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:47,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:04:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:47,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:04:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:47,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:47,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:47,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:47,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:47,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:47,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:47,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:48,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:48,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:48,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:48,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:48,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:48,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:48,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:48,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:49,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:49,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:49,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:49,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:49,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:49,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:49,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:49,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:49,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:49,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:49,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:49,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:49,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:50,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:50,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:50,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:50,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:50,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:50,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:50,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:50,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:50,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:50,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:50,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:50,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:50,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:50,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:50,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:51,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:51,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:51,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:51,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:51,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:51,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:51,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:51,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:51,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:51,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:51,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:51,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:51,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:51,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:51,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:52,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:52,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:52,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:52,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:52,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:52,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:52,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:52,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:52,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:52,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:52,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:52,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:04:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:04:54,919 INFO L134 CoverageAnalysis]: Checked inductivity of 10233 backedges. 0 proven. 4401 refuted. 0 times theorem prover too weak. 5832 trivial. 0 not checked. [2020-11-06 22:04:54,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902860210] [2020-11-06 22:04:54,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976457842] [2020-11-06 22:04:54,920 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:04:55,203 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 55 check-sat command(s) [2020-11-06 22:04:55,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:04:55,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 1135 conjuncts, 112 conjunts are in the unsatisfiable core [2020-11-06 22:04:55,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:04:55,535 INFO L134 CoverageAnalysis]: Checked inductivity of 10233 backedges. 0 proven. 4401 refuted. 0 times theorem prover too weak. 5832 trivial. 0 not checked. [2020-11-06 22:04:55,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:04:55,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 59] total 62 [2020-11-06 22:04:55,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210991714] [2020-11-06 22:04:55,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 62 states [2020-11-06 22:04:55,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:04:55,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2020-11-06 22:04:55,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1662, Invalid=2120, Unknown=0, NotChecked=0, Total=3782 [2020-11-06 22:04:55,537 INFO L87 Difference]: Start difference. First operand 190 states and 198 transitions. Second operand 62 states. [2020-11-06 22:05:00,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:05:00,214 INFO L93 Difference]: Finished difference Result 200 states and 210 transitions. [2020-11-06 22:05:00,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-11-06 22:05:00,215 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 393 [2020-11-06 22:05:00,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:05:00,216 INFO L225 Difference]: With dead ends: 200 [2020-11-06 22:05:00,217 INFO L226 Difference]: Without dead ends: 195 [2020-11-06 22:05:00,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 622 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3361 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=5264, Invalid=9498, Unknown=0, NotChecked=0, Total=14762 [2020-11-06 22:05:00,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-11-06 22:05:00,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 193. [2020-11-06 22:05:00,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-11-06 22:05:00,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 201 transitions. [2020-11-06 22:05:00,225 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 201 transitions. Word has length 393 [2020-11-06 22:05:00,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:05:00,226 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 201 transitions. [2020-11-06 22:05:00,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 62 states. [2020-11-06 22:05:00,226 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 201 transitions. [2020-11-06 22:05:00,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2020-11-06 22:05:00,228 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:05:00,228 INFO L422 BasicCegarLoop]: trace histogram [56, 56, 55, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:05:00,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2020-11-06 22:05:00,442 INFO L429 AbstractCegarLoop]: === Iteration 57 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:05:00,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:05:00,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1821918991, now seen corresponding path program 55 times [2020-11-06 22:05:00,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:05:00,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301883734] [2020-11-06 22:05:00,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:05:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:00,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:05:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:00,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:05:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:00,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:00,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:01,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:01,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:01,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:01,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:01,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:01,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:01,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:02,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:02,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:02,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:02,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:02,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:02,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:02,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:02,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:02,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:03,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:03,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:03,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:03,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:03,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:03,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:03,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:03,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:03,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:03,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:04,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:04,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:04,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:04,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:04,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:04,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:04,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:04,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:04,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:04,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:04,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:04,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:04,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:05,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:05,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:05,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:05,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:05,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:05,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:05,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:05,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:05,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:05,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:05,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:05,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:05,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:05,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:06,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:06,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:06,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:06,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:06,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:06,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:06,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:08,692 INFO L134 CoverageAnalysis]: Checked inductivity of 10615 backedges. 0 proven. 4565 refuted. 0 times theorem prover too weak. 6050 trivial. 0 not checked. [2020-11-06 22:05:08,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301883734] [2020-11-06 22:05:08,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38706075] [2020-11-06 22:05:08,693 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:05:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:08,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 1154 conjuncts, 114 conjunts are in the unsatisfiable core [2020-11-06 22:05:08,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:05:09,264 INFO L134 CoverageAnalysis]: Checked inductivity of 10615 backedges. 0 proven. 4565 refuted. 0 times theorem prover too weak. 6050 trivial. 0 not checked. [2020-11-06 22:05:09,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:05:09,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 60] total 63 [2020-11-06 22:05:09,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505466966] [2020-11-06 22:05:09,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 63 states [2020-11-06 22:05:09,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:05:09,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2020-11-06 22:05:09,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1720, Invalid=2186, Unknown=0, NotChecked=0, Total=3906 [2020-11-06 22:05:09,266 INFO L87 Difference]: Start difference. First operand 193 states and 201 transitions. Second operand 63 states. [2020-11-06 22:05:14,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:05:14,081 INFO L93 Difference]: Finished difference Result 203 states and 213 transitions. [2020-11-06 22:05:14,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-11-06 22:05:14,082 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 400 [2020-11-06 22:05:14,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:05:14,083 INFO L225 Difference]: With dead ends: 203 [2020-11-06 22:05:14,083 INFO L226 Difference]: Without dead ends: 198 [2020-11-06 22:05:14,085 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 633 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3478 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=5443, Invalid=9809, Unknown=0, NotChecked=0, Total=15252 [2020-11-06 22:05:14,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-11-06 22:05:14,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 196. [2020-11-06 22:05:14,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-11-06 22:05:14,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 204 transitions. [2020-11-06 22:05:14,091 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 204 transitions. Word has length 400 [2020-11-06 22:05:14,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:05:14,091 INFO L481 AbstractCegarLoop]: Abstraction has 196 states and 204 transitions. [2020-11-06 22:05:14,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 63 states. [2020-11-06 22:05:14,091 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 204 transitions. [2020-11-06 22:05:14,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2020-11-06 22:05:14,094 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:05:14,094 INFO L422 BasicCegarLoop]: trace histogram [57, 57, 56, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:05:14,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:05:14,310 INFO L429 AbstractCegarLoop]: === Iteration 58 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:05:14,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:05:14,310 INFO L82 PathProgramCache]: Analyzing trace with hash 225421590, now seen corresponding path program 56 times [2020-11-06 22:05:14,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:05:14,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165443498] [2020-11-06 22:05:14,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:05:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:14,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:05:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:14,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:05:14,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:14,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:14,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:14,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:15,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:15,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:15,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:15,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:15,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:15,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:15,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:16,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:16,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:16,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:16,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:16,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:16,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:16,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:16,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:17,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:17,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:17,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:17,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:17,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:17,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:17,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:17,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:17,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:17,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:18,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:18,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:18,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:18,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:18,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:18,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:18,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:18,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:18,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:18,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:18,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:18,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:18,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:18,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:19,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:19,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:19,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:19,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:19,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:19,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:19,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:19,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:19,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:19,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:19,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:19,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:19,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:20,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:20,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:20,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:20,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:20,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:20,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:20,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:20,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:20,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:20,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:23,144 INFO L134 CoverageAnalysis]: Checked inductivity of 11004 backedges. 0 proven. 4732 refuted. 0 times theorem prover too weak. 6272 trivial. 0 not checked. [2020-11-06 22:05:23,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165443498] [2020-11-06 22:05:23,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400199839] [2020-11-06 22:05:23,144 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:05:23,375 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-06 22:05:23,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:05:23,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 1173 conjuncts, 116 conjunts are in the unsatisfiable core [2020-11-06 22:05:23,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:05:23,817 INFO L134 CoverageAnalysis]: Checked inductivity of 11004 backedges. 0 proven. 4732 refuted. 0 times theorem prover too weak. 6272 trivial. 0 not checked. [2020-11-06 22:05:23,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:05:23,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 61] total 64 [2020-11-06 22:05:23,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737718542] [2020-11-06 22:05:23,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 64 states [2020-11-06 22:05:23,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:05:23,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2020-11-06 22:05:23,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1779, Invalid=2253, Unknown=0, NotChecked=0, Total=4032 [2020-11-06 22:05:23,822 INFO L87 Difference]: Start difference. First operand 196 states and 204 transitions. Second operand 64 states. [2020-11-06 22:05:28,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:05:28,743 INFO L93 Difference]: Finished difference Result 206 states and 216 transitions. [2020-11-06 22:05:28,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-11-06 22:05:28,744 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 407 [2020-11-06 22:05:28,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:05:28,746 INFO L225 Difference]: With dead ends: 206 [2020-11-06 22:05:28,746 INFO L226 Difference]: Without dead ends: 201 [2020-11-06 22:05:28,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 644 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3597 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=5625, Invalid=10125, Unknown=0, NotChecked=0, Total=15750 [2020-11-06 22:05:28,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-11-06 22:05:28,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 199. [2020-11-06 22:05:28,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-11-06 22:05:28,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 207 transitions. [2020-11-06 22:05:28,756 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 207 transitions. Word has length 407 [2020-11-06 22:05:28,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:05:28,756 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 207 transitions. [2020-11-06 22:05:28,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 64 states. [2020-11-06 22:05:28,757 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 207 transitions. [2020-11-06 22:05:28,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2020-11-06 22:05:28,759 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:05:28,759 INFO L422 BasicCegarLoop]: trace histogram [58, 58, 57, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:05:28,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2020-11-06 22:05:28,974 INFO L429 AbstractCegarLoop]: === Iteration 59 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:05:28,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:05:28,975 INFO L82 PathProgramCache]: Analyzing trace with hash -2069375357, now seen corresponding path program 57 times [2020-11-06 22:05:28,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:05:28,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614005369] [2020-11-06 22:05:28,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:05:29,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:29,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:05:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:29,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:05:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:29,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:29,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:29,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:29,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:29,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:30,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:30,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:30,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:30,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:30,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:30,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:30,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:31,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:31,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:31,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:31,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:31,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:31,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:31,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:31,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:31,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:31,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:31,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:31,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:31,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:31,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:32,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:32,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:32,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:32,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:32,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:32,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:32,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:32,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:32,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:32,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:33,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:33,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:33,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:33,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:33,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:33,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:33,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:33,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:33,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:33,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:33,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:33,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:34,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:34,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:34,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:34,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:34,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:34,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:34,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:34,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:34,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:34,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:34,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:34,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:34,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:34,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:34,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:34,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:35,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:35,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:35,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:35,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:35,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:35,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:35,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:35,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:35,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:38,039 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 4902 refuted. 0 times theorem prover too weak. 6498 trivial. 0 not checked. [2020-11-06 22:05:38,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614005369] [2020-11-06 22:05:38,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611703149] [2020-11-06 22:05:38,040 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:05:38,375 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) [2020-11-06 22:05:38,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:05:38,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 118 conjunts are in the unsatisfiable core [2020-11-06 22:05:38,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:05:38,773 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 4902 refuted. 0 times theorem prover too weak. 6498 trivial. 0 not checked. [2020-11-06 22:05:38,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:05:38,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 62] total 65 [2020-11-06 22:05:38,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021483083] [2020-11-06 22:05:38,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 65 states [2020-11-06 22:05:38,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:05:38,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2020-11-06 22:05:38,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1839, Invalid=2321, Unknown=0, NotChecked=0, Total=4160 [2020-11-06 22:05:38,775 INFO L87 Difference]: Start difference. First operand 199 states and 207 transitions. Second operand 65 states. [2020-11-06 22:05:43,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:05:43,786 INFO L93 Difference]: Finished difference Result 209 states and 219 transitions. [2020-11-06 22:05:43,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2020-11-06 22:05:43,787 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 414 [2020-11-06 22:05:43,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:05:43,789 INFO L225 Difference]: With dead ends: 209 [2020-11-06 22:05:43,789 INFO L226 Difference]: Without dead ends: 204 [2020-11-06 22:05:43,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 655 GetRequests, 529 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3718 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=5810, Invalid=10446, Unknown=0, NotChecked=0, Total=16256 [2020-11-06 22:05:43,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-11-06 22:05:43,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 202. [2020-11-06 22:05:43,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-11-06 22:05:43,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 210 transitions. [2020-11-06 22:05:43,798 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 210 transitions. Word has length 414 [2020-11-06 22:05:43,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:05:43,799 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 210 transitions. [2020-11-06 22:05:43,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 65 states. [2020-11-06 22:05:43,799 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 210 transitions. [2020-11-06 22:05:43,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2020-11-06 22:05:43,801 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:05:43,802 INFO L422 BasicCegarLoop]: trace histogram [59, 59, 58, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:05:44,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:05:44,017 INFO L429 AbstractCegarLoop]: === Iteration 60 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:05:44,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:05:44,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1229480444, now seen corresponding path program 58 times [2020-11-06 22:05:44,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:05:44,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123997696] [2020-11-06 22:05:44,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:05:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:44,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:05:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:44,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:05:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:44,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:44,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:44,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:44,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:45,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:45,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:45,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:45,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:45,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:45,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:45,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:46,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:46,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:46,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:46,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:46,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:46,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:46,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:47,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:47,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:47,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:47,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:47,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:47,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:47,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:47,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:47,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:47,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:47,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:48,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:48,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:48,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:48,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:48,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:48,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:48,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:48,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:48,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:48,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:48,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:48,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:48,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:49,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:49,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:49,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:49,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:49,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:49,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:49,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:49,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:49,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:49,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:49,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:49,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:50,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:50,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:50,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:50,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:50,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:50,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:50,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:50,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:50,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:50,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:50,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:50,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:53,460 INFO L134 CoverageAnalysis]: Checked inductivity of 11803 backedges. 0 proven. 5075 refuted. 0 times theorem prover too weak. 6728 trivial. 0 not checked. [2020-11-06 22:05:53,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123997696] [2020-11-06 22:05:53,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228257083] [2020-11-06 22:05:53,461 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:05:53,701 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-06 22:05:53,701 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:05:53,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 1211 conjuncts, 120 conjunts are in the unsatisfiable core [2020-11-06 22:05:53,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:05:54,102 INFO L134 CoverageAnalysis]: Checked inductivity of 11803 backedges. 0 proven. 5075 refuted. 0 times theorem prover too weak. 6728 trivial. 0 not checked. [2020-11-06 22:05:54,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:05:54,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 63] total 66 [2020-11-06 22:05:54,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563493478] [2020-11-06 22:05:54,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 66 states [2020-11-06 22:05:54,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:05:54,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2020-11-06 22:05:54,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1900, Invalid=2390, Unknown=0, NotChecked=0, Total=4290 [2020-11-06 22:05:54,104 INFO L87 Difference]: Start difference. First operand 202 states and 210 transitions. Second operand 66 states. [2020-11-06 22:05:59,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:05:59,234 INFO L93 Difference]: Finished difference Result 212 states and 222 transitions. [2020-11-06 22:05:59,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2020-11-06 22:05:59,239 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 421 [2020-11-06 22:05:59,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:05:59,240 INFO L225 Difference]: With dead ends: 212 [2020-11-06 22:05:59,240 INFO L226 Difference]: Without dead ends: 207 [2020-11-06 22:05:59,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 538 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3841 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=5998, Invalid=10772, Unknown=0, NotChecked=0, Total=16770 [2020-11-06 22:05:59,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2020-11-06 22:05:59,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 205. [2020-11-06 22:05:59,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-11-06 22:05:59,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 213 transitions. [2020-11-06 22:05:59,248 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 213 transitions. Word has length 421 [2020-11-06 22:05:59,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:05:59,248 INFO L481 AbstractCegarLoop]: Abstraction has 205 states and 213 transitions. [2020-11-06 22:05:59,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 66 states. [2020-11-06 22:05:59,248 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 213 transitions. [2020-11-06 22:05:59,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2020-11-06 22:05:59,251 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:05:59,251 INFO L422 BasicCegarLoop]: trace histogram [60, 60, 59, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:05:59,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2020-11-06 22:05:59,452 INFO L429 AbstractCegarLoop]: === Iteration 61 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:05:59,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:05:59,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1738602731, now seen corresponding path program 59 times [2020-11-06 22:05:59,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:05:59,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019799171] [2020-11-06 22:05:59,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:05:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:59,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:05:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:59,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:05:59,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:59,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:05:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:05:59,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:00,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:00,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:00,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:00,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:00,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:00,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:00,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:01,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:01,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:01,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:01,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:01,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:01,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:01,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:01,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:02,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:02,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:02,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:02,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:02,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:02,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:02,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:02,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:02,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:03,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:03,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:03,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:03,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:03,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:03,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:03,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:03,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:03,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:03,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:04,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:04,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:04,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:04,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:04,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:04,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:04,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:04,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:04,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:04,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:05,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:05,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:05,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:05,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:05,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:05,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:05,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:05,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:05,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:05,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:05,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:06,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:06,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:06,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:06,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:06,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:06,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:06,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:06,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:06,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:09,337 INFO L134 CoverageAnalysis]: Checked inductivity of 12213 backedges. 0 proven. 5251 refuted. 0 times theorem prover too weak. 6962 trivial. 0 not checked. [2020-11-06 22:06:09,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019799171] [2020-11-06 22:06:09,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10409946] [2020-11-06 22:06:09,337 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:06:09,640 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 60 check-sat command(s) [2020-11-06 22:06:09,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:06:09,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 1230 conjuncts, 122 conjunts are in the unsatisfiable core [2020-11-06 22:06:09,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:06:10,004 INFO L134 CoverageAnalysis]: Checked inductivity of 12213 backedges. 0 proven. 5251 refuted. 0 times theorem prover too weak. 6962 trivial. 0 not checked. [2020-11-06 22:06:10,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:06:10,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 64] total 67 [2020-11-06 22:06:10,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673919147] [2020-11-06 22:06:10,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 67 states [2020-11-06 22:06:10,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:06:10,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2020-11-06 22:06:10,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1962, Invalid=2460, Unknown=0, NotChecked=0, Total=4422 [2020-11-06 22:06:10,006 INFO L87 Difference]: Start difference. First operand 205 states and 213 transitions. Second operand 67 states. [2020-11-06 22:06:15,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:06:15,332 INFO L93 Difference]: Finished difference Result 215 states and 225 transitions. [2020-11-06 22:06:15,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-11-06 22:06:15,333 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 428 [2020-11-06 22:06:15,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:06:15,335 INFO L225 Difference]: With dead ends: 215 [2020-11-06 22:06:15,335 INFO L226 Difference]: Without dead ends: 210 [2020-11-06 22:06:15,337 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 677 GetRequests, 547 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3966 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=6189, Invalid=11103, Unknown=0, NotChecked=0, Total=17292 [2020-11-06 22:06:15,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-11-06 22:06:15,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 208. [2020-11-06 22:06:15,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-11-06 22:06:15,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 216 transitions. [2020-11-06 22:06:15,342 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 216 transitions. Word has length 428 [2020-11-06 22:06:15,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:06:15,343 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 216 transitions. [2020-11-06 22:06:15,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 67 states. [2020-11-06 22:06:15,343 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 216 transitions. [2020-11-06 22:06:15,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2020-11-06 22:06:15,345 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:06:15,346 INFO L422 BasicCegarLoop]: trace histogram [61, 61, 60, 60, 60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:06:15,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,60 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:06:15,561 INFO L429 AbstractCegarLoop]: === Iteration 62 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:06:15,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:06:15,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1116860430, now seen corresponding path program 60 times [2020-11-06 22:06:15,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:06:15,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092621910] [2020-11-06 22:06:15,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:06:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:15,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:06:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:15,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:06:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:15,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:16,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:16,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:16,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:16,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:16,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:16,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:16,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:16,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:16,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:17,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:17,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:17,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:17,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:17,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:17,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:17,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:17,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:18,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:18,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:18,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:18,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:18,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:18,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:18,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:18,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:19,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:19,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:19,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:19,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:19,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:19,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:19,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:19,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:19,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:20,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:20,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:20,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:20,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:20,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:20,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:20,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:20,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:20,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:20,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:20,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:20,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:21,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:21,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:21,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:21,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:21,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:21,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:21,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:21,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:21,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:21,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:21,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:21,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:21,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:21,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:22,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:22,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:22,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:22,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:22,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:22,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:22,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:22,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:22,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:22,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:22,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:25,820 INFO L134 CoverageAnalysis]: Checked inductivity of 12630 backedges. 0 proven. 5430 refuted. 0 times theorem prover too weak. 7200 trivial. 0 not checked. [2020-11-06 22:06:25,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092621910] [2020-11-06 22:06:25,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761576994] [2020-11-06 22:06:25,820 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:06:26,138 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 61 check-sat command(s) [2020-11-06 22:06:26,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:06:26,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 1249 conjuncts, 124 conjunts are in the unsatisfiable core [2020-11-06 22:06:26,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:06:26,539 INFO L134 CoverageAnalysis]: Checked inductivity of 12630 backedges. 0 proven. 5430 refuted. 0 times theorem prover too weak. 7200 trivial. 0 not checked. [2020-11-06 22:06:26,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:06:26,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 65] total 68 [2020-11-06 22:06:26,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388104225] [2020-11-06 22:06:26,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 68 states [2020-11-06 22:06:26,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:06:26,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2020-11-06 22:06:26,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2025, Invalid=2531, Unknown=0, NotChecked=0, Total=4556 [2020-11-06 22:06:26,541 INFO L87 Difference]: Start difference. First operand 208 states and 216 transitions. Second operand 68 states. [2020-11-06 22:06:31,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:06:31,975 INFO L93 Difference]: Finished difference Result 218 states and 228 transitions. [2020-11-06 22:06:31,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-11-06 22:06:31,976 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 435 [2020-11-06 22:06:31,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:06:31,977 INFO L225 Difference]: With dead ends: 218 [2020-11-06 22:06:31,978 INFO L226 Difference]: Without dead ends: 213 [2020-11-06 22:06:31,979 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 688 GetRequests, 556 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4093 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=6383, Invalid=11439, Unknown=0, NotChecked=0, Total=17822 [2020-11-06 22:06:31,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-11-06 22:06:31,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 211. [2020-11-06 22:06:31,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-11-06 22:06:31,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 219 transitions. [2020-11-06 22:06:31,984 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 219 transitions. Word has length 435 [2020-11-06 22:06:31,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:06:31,985 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 219 transitions. [2020-11-06 22:06:31,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 68 states. [2020-11-06 22:06:31,985 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 219 transitions. [2020-11-06 22:06:31,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2020-11-06 22:06:31,987 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:06:31,987 INFO L422 BasicCegarLoop]: trace histogram [62, 62, 61, 61, 61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:06:32,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2020-11-06 22:06:32,188 INFO L429 AbstractCegarLoop]: === Iteration 63 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:06:32,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:06:32,189 INFO L82 PathProgramCache]: Analyzing trace with hash -210097497, now seen corresponding path program 61 times [2020-11-06 22:06:32,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:06:32,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130840944] [2020-11-06 22:06:32,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:06:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:32,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:06:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:32,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:06:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:32,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:32,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:32,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:33,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:33,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:33,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:33,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:33,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:33,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:34,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:34,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:34,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:34,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:34,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:34,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:34,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:34,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:35,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:35,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:35,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:35,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:35,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:35,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:35,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:36,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:36,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:36,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:36,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:36,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:36,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:36,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:36,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:36,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:36,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:37,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:37,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:37,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:37,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:37,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:37,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:37,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:37,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:37,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:37,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:38,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:38,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:38,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:38,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:38,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:38,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:38,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:38,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:38,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:38,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:38,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:38,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:38,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:39,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:39,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:39,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:39,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:39,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:39,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:39,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:39,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:39,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:39,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:42,907 INFO L134 CoverageAnalysis]: Checked inductivity of 13054 backedges. 0 proven. 5612 refuted. 0 times theorem prover too weak. 7442 trivial. 0 not checked. [2020-11-06 22:06:42,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130840944] [2020-11-06 22:06:42,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993409674] [2020-11-06 22:06:42,908 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:06:43,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:43,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 1268 conjuncts, 126 conjunts are in the unsatisfiable core [2020-11-06 22:06:43,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:06:43,544 INFO L134 CoverageAnalysis]: Checked inductivity of 13054 backedges. 0 proven. 5612 refuted. 0 times theorem prover too weak. 7442 trivial. 0 not checked. [2020-11-06 22:06:43,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:06:43,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 66] total 69 [2020-11-06 22:06:43,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410193366] [2020-11-06 22:06:43,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 69 states [2020-11-06 22:06:43,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:06:43,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2020-11-06 22:06:43,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2089, Invalid=2603, Unknown=0, NotChecked=0, Total=4692 [2020-11-06 22:06:43,547 INFO L87 Difference]: Start difference. First operand 211 states and 219 transitions. Second operand 69 states. [2020-11-06 22:06:49,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:06:49,183 INFO L93 Difference]: Finished difference Result 221 states and 231 transitions. [2020-11-06 22:06:49,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-11-06 22:06:49,183 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 442 [2020-11-06 22:06:49,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:06:49,185 INFO L225 Difference]: With dead ends: 221 [2020-11-06 22:06:49,186 INFO L226 Difference]: Without dead ends: 216 [2020-11-06 22:06:49,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 699 GetRequests, 565 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4222 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=6580, Invalid=11780, Unknown=0, NotChecked=0, Total=18360 [2020-11-06 22:06:49,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-11-06 22:06:49,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 214. [2020-11-06 22:06:49,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-11-06 22:06:49,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 222 transitions. [2020-11-06 22:06:49,193 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 222 transitions. Word has length 442 [2020-11-06 22:06:49,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:06:49,194 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 222 transitions. [2020-11-06 22:06:49,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 69 states. [2020-11-06 22:06:49,194 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 222 transitions. [2020-11-06 22:06:49,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2020-11-06 22:06:49,196 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:06:49,197 INFO L422 BasicCegarLoop]: trace histogram [63, 63, 62, 62, 62, 62, 62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:06:49,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:06:49,412 INFO L429 AbstractCegarLoop]: === Iteration 64 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:06:49,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:06:49,413 INFO L82 PathProgramCache]: Analyzing trace with hash -436855072, now seen corresponding path program 62 times [2020-11-06 22:06:49,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:06:49,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250399549] [2020-11-06 22:06:49,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:06:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:49,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:06:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:49,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:06:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:49,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:50,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:50,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:50,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:50,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:50,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:50,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:50,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:51,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:51,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:51,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:51,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:51,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:51,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:51,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:52,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:52,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:52,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:52,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:52,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:52,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:52,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:53,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:53,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:53,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:53,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:53,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:53,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:53,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:53,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:53,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:54,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:54,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:54,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:54,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:54,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:54,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:54,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:54,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:54,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:54,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:54,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:54,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:54,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:55,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:55,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:55,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:55,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:55,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:55,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:55,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:55,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:55,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:55,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:55,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:55,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:55,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:55,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:56,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:56,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:56,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:56,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:56,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:56,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:56,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:56,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:56,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:56,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:56,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:57,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:57,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:57,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:57,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:57,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:57,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:06:57,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:06:57,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:00,593 INFO L134 CoverageAnalysis]: Checked inductivity of 13485 backedges. 0 proven. 5797 refuted. 0 times theorem prover too weak. 7688 trivial. 0 not checked. [2020-11-06 22:07:00,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250399549] [2020-11-06 22:07:00,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917244826] [2020-11-06 22:07:00,593 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:07:00,841 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-06 22:07:00,841 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:07:00,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 1287 conjuncts, 128 conjunts are in the unsatisfiable core [2020-11-06 22:07:00,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:07:01,218 INFO L134 CoverageAnalysis]: Checked inductivity of 13485 backedges. 0 proven. 5797 refuted. 0 times theorem prover too weak. 7688 trivial. 0 not checked. [2020-11-06 22:07:01,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:07:01,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 67] total 70 [2020-11-06 22:07:01,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725825693] [2020-11-06 22:07:01,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 70 states [2020-11-06 22:07:01,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:07:01,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2020-11-06 22:07:01,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2154, Invalid=2676, Unknown=0, NotChecked=0, Total=4830 [2020-11-06 22:07:01,220 INFO L87 Difference]: Start difference. First operand 214 states and 222 transitions. Second operand 70 states. [2020-11-06 22:07:06,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:07:06,999 INFO L93 Difference]: Finished difference Result 224 states and 234 transitions. [2020-11-06 22:07:07,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-11-06 22:07:07,000 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 449 [2020-11-06 22:07:07,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:07:07,003 INFO L225 Difference]: With dead ends: 224 [2020-11-06 22:07:07,003 INFO L226 Difference]: Without dead ends: 219 [2020-11-06 22:07:07,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 574 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4353 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=6780, Invalid=12126, Unknown=0, NotChecked=0, Total=18906 [2020-11-06 22:07:07,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-11-06 22:07:07,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 217. [2020-11-06 22:07:07,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-11-06 22:07:07,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 225 transitions. [2020-11-06 22:07:07,012 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 225 transitions. Word has length 449 [2020-11-06 22:07:07,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:07:07,012 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 225 transitions. [2020-11-06 22:07:07,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 70 states. [2020-11-06 22:07:07,013 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 225 transitions. [2020-11-06 22:07:07,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2020-11-06 22:07:07,015 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:07:07,016 INFO L422 BasicCegarLoop]: trace histogram [64, 64, 63, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:07:07,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2020-11-06 22:07:07,232 INFO L429 AbstractCegarLoop]: === Iteration 65 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:07:07,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:07:07,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1832509127, now seen corresponding path program 63 times [2020-11-06 22:07:07,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:07:07,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99097603] [2020-11-06 22:07:07,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:07:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:07,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:07:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:07,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:07:07,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:07,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:07,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:07,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:08,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:08,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:08,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:08,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:08,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:08,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:09,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:09,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:09,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:09,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:09,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:09,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:10,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:10,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:10,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:10,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:10,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:10,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:10,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:10,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:11,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:11,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:11,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:11,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:11,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:11,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:11,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:11,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:11,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:11,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:12,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:12,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:12,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:12,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:12,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:12,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:12,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:12,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:13,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:13,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:13,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:13,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:13,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:13,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:13,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:13,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:13,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:13,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:13,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:14,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:14,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:14,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:14,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:14,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:14,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:14,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:14,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:14,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:14,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:14,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:14,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:14,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:15,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:15,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:15,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:15,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:15,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:15,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:15,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:15,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:15,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:19,121 INFO L134 CoverageAnalysis]: Checked inductivity of 13923 backedges. 0 proven. 5985 refuted. 0 times theorem prover too weak. 7938 trivial. 0 not checked. [2020-11-06 22:07:19,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99097603] [2020-11-06 22:07:19,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781068892] [2020-11-06 22:07:19,122 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:07:19,467 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 64 check-sat command(s) [2020-11-06 22:07:19,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:07:19,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 130 conjunts are in the unsatisfiable core [2020-11-06 22:07:19,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:07:19,856 INFO L134 CoverageAnalysis]: Checked inductivity of 13923 backedges. 0 proven. 5985 refuted. 0 times theorem prover too weak. 7938 trivial. 0 not checked. [2020-11-06 22:07:19,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:07:19,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 68] total 71 [2020-11-06 22:07:19,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908472884] [2020-11-06 22:07:19,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 71 states [2020-11-06 22:07:19,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:07:19,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2020-11-06 22:07:19,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2220, Invalid=2750, Unknown=0, NotChecked=0, Total=4970 [2020-11-06 22:07:19,860 INFO L87 Difference]: Start difference. First operand 217 states and 225 transitions. Second operand 71 states. [2020-11-06 22:07:25,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:07:25,735 INFO L93 Difference]: Finished difference Result 227 states and 237 transitions. [2020-11-06 22:07:25,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2020-11-06 22:07:25,736 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 456 [2020-11-06 22:07:25,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:07:25,738 INFO L225 Difference]: With dead ends: 227 [2020-11-06 22:07:25,738 INFO L226 Difference]: Without dead ends: 222 [2020-11-06 22:07:25,740 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 721 GetRequests, 583 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4486 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=6983, Invalid=12477, Unknown=0, NotChecked=0, Total=19460 [2020-11-06 22:07:25,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-11-06 22:07:25,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 220. [2020-11-06 22:07:25,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-11-06 22:07:25,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 228 transitions. [2020-11-06 22:07:25,746 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 228 transitions. Word has length 456 [2020-11-06 22:07:25,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:07:25,747 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 228 transitions. [2020-11-06 22:07:25,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 71 states. [2020-11-06 22:07:25,747 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 228 transitions. [2020-11-06 22:07:25,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2020-11-06 22:07:25,750 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:07:25,750 INFO L422 BasicCegarLoop]: trace histogram [65, 65, 64, 64, 64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:07:25,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:07:25,964 INFO L429 AbstractCegarLoop]: === Iteration 66 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:07:25,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:07:25,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1479349554, now seen corresponding path program 64 times [2020-11-06 22:07:25,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:07:25,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128787905] [2020-11-06 22:07:25,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:07:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:26,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:07:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:26,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:07:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:26,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:26,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:26,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:26,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:27,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:27,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:27,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:27,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:27,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:27,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:28,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:28,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:28,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:28,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:28,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:28,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:29,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:29,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:29,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:29,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:29,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:29,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:29,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:29,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:30,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:30,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:30,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:30,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:30,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:30,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:30,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:30,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:30,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:31,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:31,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:31,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:31,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:31,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:31,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:31,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:31,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:31,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:31,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:31,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:31,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:32,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:32,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:32,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:32,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:32,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:32,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:32,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:32,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:32,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:32,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:33,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:33,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:33,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:33,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:33,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:33,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:33,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:33,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:33,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:33,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:33,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:33,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:33,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:34,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:34,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:34,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:34,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:34,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:34,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:34,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:34,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:34,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:38,110 INFO L134 CoverageAnalysis]: Checked inductivity of 14368 backedges. 0 proven. 6176 refuted. 0 times theorem prover too weak. 8192 trivial. 0 not checked. [2020-11-06 22:07:38,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128787905] [2020-11-06 22:07:38,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [384753055] [2020-11-06 22:07:38,110 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:07:38,370 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-06 22:07:38,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:07:38,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 1325 conjuncts, 132 conjunts are in the unsatisfiable core [2020-11-06 22:07:38,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:07:38,786 INFO L134 CoverageAnalysis]: Checked inductivity of 14368 backedges. 0 proven. 6176 refuted. 0 times theorem prover too weak. 8192 trivial. 0 not checked. [2020-11-06 22:07:38,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:07:38,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 69] total 72 [2020-11-06 22:07:38,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488068278] [2020-11-06 22:07:38,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 72 states [2020-11-06 22:07:38,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:07:38,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2020-11-06 22:07:38,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2287, Invalid=2825, Unknown=0, NotChecked=0, Total=5112 [2020-11-06 22:07:38,789 INFO L87 Difference]: Start difference. First operand 220 states and 228 transitions. Second operand 72 states. [2020-11-06 22:07:44,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:07:44,855 INFO L93 Difference]: Finished difference Result 230 states and 240 transitions. [2020-11-06 22:07:44,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2020-11-06 22:07:44,856 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 463 [2020-11-06 22:07:44,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:07:44,858 INFO L225 Difference]: With dead ends: 230 [2020-11-06 22:07:44,858 INFO L226 Difference]: Without dead ends: 225 [2020-11-06 22:07:44,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 732 GetRequests, 592 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4621 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=7189, Invalid=12833, Unknown=0, NotChecked=0, Total=20022 [2020-11-06 22:07:44,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-11-06 22:07:44,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 223. [2020-11-06 22:07:44,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-11-06 22:07:44,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 231 transitions. [2020-11-06 22:07:44,865 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 231 transitions. Word has length 463 [2020-11-06 22:07:44,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:07:44,866 INFO L481 AbstractCegarLoop]: Abstraction has 223 states and 231 transitions. [2020-11-06 22:07:44,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 72 states. [2020-11-06 22:07:44,866 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 231 transitions. [2020-11-06 22:07:44,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2020-11-06 22:07:44,868 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:07:44,869 INFO L422 BasicCegarLoop]: trace histogram [66, 66, 65, 65, 65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:07:45,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2020-11-06 22:07:45,071 INFO L429 AbstractCegarLoop]: === Iteration 67 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:07:45,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:07:45,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1961872075, now seen corresponding path program 65 times [2020-11-06 22:07:45,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:07:45,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588503800] [2020-11-06 22:07:45,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:07:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:45,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:07:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:45,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:07:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:45,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:45,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:45,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:46,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:46,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:46,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:46,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:46,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:47,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:47,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:47,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:47,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:47,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:47,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:47,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:47,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:48,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:48,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:48,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:48,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:48,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:48,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:49,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:49,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:49,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:49,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:49,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:49,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:49,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:50,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:50,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:50,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:50,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:50,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:50,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:50,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:50,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:50,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:51,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:51,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:51,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:51,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:51,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:51,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:51,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:51,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:51,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:51,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:52,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:52,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:52,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:52,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:52,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:52,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:52,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:52,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:52,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:52,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:52,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:53,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:53,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:53,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:53,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:53,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:53,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:53,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:53,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:53,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:53,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:53,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:54,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:54,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:07:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:07:57,713 INFO L134 CoverageAnalysis]: Checked inductivity of 14820 backedges. 0 proven. 6370 refuted. 0 times theorem prover too weak. 8450 trivial. 0 not checked. [2020-11-06 22:07:57,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588503800] [2020-11-06 22:07:57,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499408677] [2020-11-06 22:07:57,714 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:07:58,071 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 66 check-sat command(s) [2020-11-06 22:07:58,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:07:58,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 1344 conjuncts, 134 conjunts are in the unsatisfiable core [2020-11-06 22:07:58,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:07:58,477 INFO L134 CoverageAnalysis]: Checked inductivity of 14820 backedges. 0 proven. 6370 refuted. 0 times theorem prover too weak. 8450 trivial. 0 not checked. [2020-11-06 22:07:58,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:07:58,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 70] total 73 [2020-11-06 22:07:58,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216799201] [2020-11-06 22:07:58,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 73 states [2020-11-06 22:07:58,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:07:58,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2020-11-06 22:07:58,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2355, Invalid=2901, Unknown=0, NotChecked=0, Total=5256 [2020-11-06 22:07:58,479 INFO L87 Difference]: Start difference. First operand 223 states and 231 transitions. Second operand 73 states. [2020-11-06 22:08:04,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:08:04,685 INFO L93 Difference]: Finished difference Result 233 states and 243 transitions. [2020-11-06 22:08:04,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-11-06 22:08:04,686 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 470 [2020-11-06 22:08:04,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:08:04,688 INFO L225 Difference]: With dead ends: 233 [2020-11-06 22:08:04,688 INFO L226 Difference]: Without dead ends: 228 [2020-11-06 22:08:04,690 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 743 GetRequests, 601 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4758 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=7398, Invalid=13194, Unknown=0, NotChecked=0, Total=20592 [2020-11-06 22:08:04,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-11-06 22:08:04,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 226. [2020-11-06 22:08:04,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-11-06 22:08:04,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 234 transitions. [2020-11-06 22:08:04,696 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 234 transitions. Word has length 470 [2020-11-06 22:08:04,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:08:04,697 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 234 transitions. [2020-11-06 22:08:04,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 73 states. [2020-11-06 22:08:04,697 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 234 transitions. [2020-11-06 22:08:04,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2020-11-06 22:08:04,700 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:08:04,700 INFO L422 BasicCegarLoop]: trace histogram [67, 67, 66, 66, 66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:08:04,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2020-11-06 22:08:04,914 INFO L429 AbstractCegarLoop]: === Iteration 68 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:08:04,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:08:04,915 INFO L82 PathProgramCache]: Analyzing trace with hash -2086169668, now seen corresponding path program 66 times [2020-11-06 22:08:04,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:08:04,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528821096] [2020-11-06 22:08:04,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:08:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:05,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:08:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:05,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:08:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:05,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:05,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:05,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:05,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:06,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:06,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:06,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:06,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:06,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:06,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:07,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:07,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:07,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:07,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:07,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:07,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:07,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:07,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:07,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:07,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:08,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:08,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:08,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:08,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:08,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:08,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:09,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:09,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:09,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:09,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:09,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:09,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:09,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:09,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:09,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:09,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:09,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:10,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:10,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:10,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:10,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:10,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:10,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:10,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:11,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:11,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:11,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:11,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:11,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:11,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:11,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:11,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:11,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:12,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:12,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:12,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:12,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:12,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:12,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:12,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:12,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:12,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:12,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:12,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:12,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:12,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:13,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:13,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:13,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:13,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:13,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:13,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:13,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:13,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:13,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:13,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:13,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:13,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:13,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:14,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:14,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:14,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:14,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:18,075 INFO L134 CoverageAnalysis]: Checked inductivity of 15279 backedges. 0 proven. 6567 refuted. 0 times theorem prover too weak. 8712 trivial. 0 not checked. [2020-11-06 22:08:18,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528821096] [2020-11-06 22:08:18,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919014858] [2020-11-06 22:08:18,076 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:08:18,426 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 67 check-sat command(s) [2020-11-06 22:08:18,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:08:18,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 1363 conjuncts, 136 conjunts are in the unsatisfiable core [2020-11-06 22:08:18,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:08:18,858 INFO L134 CoverageAnalysis]: Checked inductivity of 15279 backedges. 0 proven. 6567 refuted. 0 times theorem prover too weak. 8712 trivial. 0 not checked. [2020-11-06 22:08:18,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:08:18,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 71] total 74 [2020-11-06 22:08:18,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801045144] [2020-11-06 22:08:18,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 74 states [2020-11-06 22:08:18,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:08:18,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2020-11-06 22:08:18,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2424, Invalid=2978, Unknown=0, NotChecked=0, Total=5402 [2020-11-06 22:08:18,860 INFO L87 Difference]: Start difference. First operand 226 states and 234 transitions. Second operand 74 states. [2020-11-06 22:08:25,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:08:25,181 INFO L93 Difference]: Finished difference Result 236 states and 246 transitions. [2020-11-06 22:08:25,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2020-11-06 22:08:25,182 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 477 [2020-11-06 22:08:25,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:08:25,184 INFO L225 Difference]: With dead ends: 236 [2020-11-06 22:08:25,185 INFO L226 Difference]: Without dead ends: 231 [2020-11-06 22:08:25,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 754 GetRequests, 610 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4897 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=7610, Invalid=13560, Unknown=0, NotChecked=0, Total=21170 [2020-11-06 22:08:25,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-11-06 22:08:25,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 229. [2020-11-06 22:08:25,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-11-06 22:08:25,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 237 transitions. [2020-11-06 22:08:25,194 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 237 transitions. Word has length 477 [2020-11-06 22:08:25,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:08:25,195 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 237 transitions. [2020-11-06 22:08:25,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 74 states. [2020-11-06 22:08:25,195 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 237 transitions. [2020-11-06 22:08:25,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2020-11-06 22:08:25,198 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:08:25,198 INFO L422 BasicCegarLoop]: trace histogram [68, 68, 67, 67, 67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:08:25,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2020-11-06 22:08:25,412 INFO L429 AbstractCegarLoop]: === Iteration 69 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:08:25,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:08:25,413 INFO L82 PathProgramCache]: Analyzing trace with hash -997980323, now seen corresponding path program 67 times [2020-11-06 22:08:25,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:08:25,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701222675] [2020-11-06 22:08:25,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:08:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:25,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:08:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:25,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:08:25,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:25,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:26,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:26,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:26,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:26,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:26,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:27,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:27,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:27,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:27,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:27,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:28,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:28,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:28,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:28,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:28,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:28,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:29,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:29,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:29,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:29,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:29,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:29,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:29,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:29,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:30,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:30,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:30,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:30,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:30,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:30,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:30,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:31,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:31,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:31,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:31,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:31,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:31,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:31,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:31,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:31,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:31,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:31,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:32,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:32,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:32,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:32,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:32,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:32,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:32,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:32,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:32,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:33,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:33,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:33,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:33,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:33,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:33,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:33,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:33,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:33,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:33,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:33,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:34,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:34,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:34,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:34,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:34,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:34,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:34,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:34,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:34,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:34,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:35,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:35,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:35,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:35,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:35,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:39,237 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 0 proven. 6767 refuted. 0 times theorem prover too weak. 8978 trivial. 0 not checked. [2020-11-06 22:08:39,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701222675] [2020-11-06 22:08:39,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037873662] [2020-11-06 22:08:39,238 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:08:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:39,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 1382 conjuncts, 138 conjunts are in the unsatisfiable core [2020-11-06 22:08:39,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:08:39,941 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 0 proven. 6767 refuted. 0 times theorem prover too weak. 8978 trivial. 0 not checked. [2020-11-06 22:08:39,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:08:39,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 72] total 75 [2020-11-06 22:08:39,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927607767] [2020-11-06 22:08:39,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 75 states [2020-11-06 22:08:39,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:08:39,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2020-11-06 22:08:39,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2494, Invalid=3056, Unknown=0, NotChecked=0, Total=5550 [2020-11-06 22:08:39,943 INFO L87 Difference]: Start difference. First operand 229 states and 237 transitions. Second operand 75 states. [2020-11-06 22:08:46,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:08:46,484 INFO L93 Difference]: Finished difference Result 239 states and 249 transitions. [2020-11-06 22:08:46,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2020-11-06 22:08:46,485 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 484 [2020-11-06 22:08:46,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:08:46,487 INFO L225 Difference]: With dead ends: 239 [2020-11-06 22:08:46,487 INFO L226 Difference]: Without dead ends: 234 [2020-11-06 22:08:46,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 765 GetRequests, 619 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5038 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=7825, Invalid=13931, Unknown=0, NotChecked=0, Total=21756 [2020-11-06 22:08:46,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-11-06 22:08:46,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 232. [2020-11-06 22:08:46,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-11-06 22:08:46,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 240 transitions. [2020-11-06 22:08:46,494 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 240 transitions. Word has length 484 [2020-11-06 22:08:46,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:08:46,495 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 240 transitions. [2020-11-06 22:08:46,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 75 states. [2020-11-06 22:08:46,495 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 240 transitions. [2020-11-06 22:08:46,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2020-11-06 22:08:46,497 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:08:46,497 INFO L422 BasicCegarLoop]: trace histogram [69, 69, 68, 68, 68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:08:46,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:08:46,698 INFO L429 AbstractCegarLoop]: === Iteration 70 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:08:46,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:08:46,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1496791466, now seen corresponding path program 68 times [2020-11-06 22:08:46,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:08:46,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352977571] [2020-11-06 22:08:46,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:08:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:46,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:08:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:46,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:08:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:47,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:47,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:47,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:47,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:47,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:48,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:48,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:48,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:48,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:48,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:49,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:49,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:49,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:49,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:49,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:49,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:50,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:50,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:50,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:50,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:50,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:50,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:51,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:51,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:51,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:51,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:51,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:51,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:51,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:51,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:52,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:52,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:52,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:52,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:52,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:52,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:52,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:52,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:52,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:53,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:53,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:53,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:53,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:53,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:53,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:53,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:53,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:54,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:54,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:54,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:54,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:54,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:54,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:54,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:54,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:54,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:54,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:54,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:54,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:54,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:55,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:55,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:55,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:55,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:55,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:55,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:55,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:55,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:55,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:55,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:56,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:56,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:56,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:56,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:56,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:56,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:56,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:56,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:56,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:08:56,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:08:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:00,983 INFO L134 CoverageAnalysis]: Checked inductivity of 16218 backedges. 0 proven. 6970 refuted. 0 times theorem prover too weak. 9248 trivial. 0 not checked. [2020-11-06 22:09:00,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352977571] [2020-11-06 22:09:00,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469287714] [2020-11-06 22:09:00,983 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:09:01,256 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-06 22:09:01,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:09:01,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 1401 conjuncts, 140 conjunts are in the unsatisfiable core [2020-11-06 22:09:01,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:09:01,714 INFO L134 CoverageAnalysis]: Checked inductivity of 16218 backedges. 0 proven. 6970 refuted. 0 times theorem prover too weak. 9248 trivial. 0 not checked. [2020-11-06 22:09:01,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:09:01,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 73] total 76 [2020-11-06 22:09:01,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532047027] [2020-11-06 22:09:01,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 76 states [2020-11-06 22:09:01,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:09:01,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2020-11-06 22:09:01,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2565, Invalid=3135, Unknown=0, NotChecked=0, Total=5700 [2020-11-06 22:09:01,716 INFO L87 Difference]: Start difference. First operand 232 states and 240 transitions. Second operand 76 states. [2020-11-06 22:09:08,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:09:08,386 INFO L93 Difference]: Finished difference Result 242 states and 252 transitions. [2020-11-06 22:09:08,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-11-06 22:09:08,387 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 491 [2020-11-06 22:09:08,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:09:08,389 INFO L225 Difference]: With dead ends: 242 [2020-11-06 22:09:08,389 INFO L226 Difference]: Without dead ends: 237 [2020-11-06 22:09:08,391 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 776 GetRequests, 628 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5181 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=8043, Invalid=14307, Unknown=0, NotChecked=0, Total=22350 [2020-11-06 22:09:08,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-11-06 22:09:08,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 235. [2020-11-06 22:09:08,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-11-06 22:09:08,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 243 transitions. [2020-11-06 22:09:08,397 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 243 transitions. Word has length 491 [2020-11-06 22:09:08,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:09:08,397 INFO L481 AbstractCegarLoop]: Abstraction has 235 states and 243 transitions. [2020-11-06 22:09:08,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 76 states. [2020-11-06 22:09:08,398 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 243 transitions. [2020-11-06 22:09:08,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2020-11-06 22:09:08,401 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:09:08,401 INFO L422 BasicCegarLoop]: trace histogram [70, 70, 69, 69, 69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:09:08,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2020-11-06 22:09:08,615 INFO L429 AbstractCegarLoop]: === Iteration 71 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:09:08,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:09:08,616 INFO L82 PathProgramCache]: Analyzing trace with hash 32487151, now seen corresponding path program 69 times [2020-11-06 22:09:08,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:09:08,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929972408] [2020-11-06 22:09:08,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:09:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:08,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:09:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:08,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:09:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:09,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:09,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:09,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:09,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:09,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:10,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:10,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:10,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:10,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:10,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:11,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:11,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:11,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:11,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:11,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:11,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:12,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:12,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:12,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:12,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:12,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:13,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:13,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:13,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:13,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:13,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:13,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:13,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:13,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:13,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:13,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:14,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:14,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:14,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:14,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:14,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:14,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:14,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:14,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:15,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:15,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:15,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:15,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:15,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:15,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:15,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:15,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:16,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:16,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:16,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:16,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:16,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:16,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:16,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:16,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:16,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:17,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:17,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:17,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:17,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:17,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:17,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:17,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:17,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:17,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:17,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:17,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:17,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:18,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:18,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:18,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:18,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:18,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:18,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:18,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:18,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:18,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:18,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:18,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:19,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:19,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:19,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:19,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:19,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:23,524 INFO L134 CoverageAnalysis]: Checked inductivity of 16698 backedges. 0 proven. 7176 refuted. 0 times theorem prover too weak. 9522 trivial. 0 not checked. [2020-11-06 22:09:23,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929972408] [2020-11-06 22:09:23,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254230185] [2020-11-06 22:09:23,524 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:09:23,907 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 70 check-sat command(s) [2020-11-06 22:09:23,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:09:23,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 1420 conjuncts, 142 conjunts are in the unsatisfiable core [2020-11-06 22:09:23,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:09:24,359 INFO L134 CoverageAnalysis]: Checked inductivity of 16698 backedges. 0 proven. 7176 refuted. 0 times theorem prover too weak. 9522 trivial. 0 not checked. [2020-11-06 22:09:24,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:09:24,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 74] total 77 [2020-11-06 22:09:24,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743226024] [2020-11-06 22:09:24,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 77 states [2020-11-06 22:09:24,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:09:24,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2020-11-06 22:09:24,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2637, Invalid=3215, Unknown=0, NotChecked=0, Total=5852 [2020-11-06 22:09:24,361 INFO L87 Difference]: Start difference. First operand 235 states and 243 transitions. Second operand 77 states. [2020-11-06 22:09:31,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:09:31,166 INFO L93 Difference]: Finished difference Result 245 states and 255 transitions. [2020-11-06 22:09:31,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2020-11-06 22:09:31,168 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 498 [2020-11-06 22:09:31,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:09:31,170 INFO L225 Difference]: With dead ends: 245 [2020-11-06 22:09:31,170 INFO L226 Difference]: Without dead ends: 240 [2020-11-06 22:09:31,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 787 GetRequests, 637 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5326 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=8264, Invalid=14688, Unknown=0, NotChecked=0, Total=22952 [2020-11-06 22:09:31,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-11-06 22:09:31,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 238. [2020-11-06 22:09:31,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-11-06 22:09:31,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 246 transitions. [2020-11-06 22:09:31,180 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 246 transitions. Word has length 498 [2020-11-06 22:09:31,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:09:31,181 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 246 transitions. [2020-11-06 22:09:31,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 77 states. [2020-11-06 22:09:31,181 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 246 transitions. [2020-11-06 22:09:31,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2020-11-06 22:09:31,184 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:09:31,184 INFO L422 BasicCegarLoop]: trace histogram [71, 71, 70, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:09:31,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,70 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:09:31,398 INFO L429 AbstractCegarLoop]: === Iteration 72 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:09:31,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:09:31,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1117455208, now seen corresponding path program 70 times [2020-11-06 22:09:31,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:09:31,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303692574] [2020-11-06 22:09:31,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:09:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:31,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:09:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:31,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:09:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:31,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:32,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:32,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:32,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:32,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:32,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:33,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:33,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:33,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:33,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:33,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:33,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:34,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:34,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:34,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:34,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:34,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:35,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:35,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:35,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:35,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:35,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:35,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:35,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:36,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:36,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:36,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:36,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:36,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:36,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:36,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:36,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:37,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:37,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:37,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:37,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:37,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:37,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:37,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:38,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:38,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:38,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:38,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:38,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:38,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:38,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:38,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:38,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:38,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:39,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:39,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:39,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:39,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:39,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:39,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:39,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:39,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:39,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:40,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:40,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:40,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:40,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:40,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:40,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:40,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:40,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:40,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:41,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:41,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:41,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:41,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:41,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:41,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:41,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:41,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:41,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:41,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:42,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:42,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:42,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:42,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:42,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:46,849 INFO L134 CoverageAnalysis]: Checked inductivity of 17185 backedges. 0 proven. 7385 refuted. 0 times theorem prover too weak. 9800 trivial. 0 not checked. [2020-11-06 22:09:46,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303692574] [2020-11-06 22:09:46,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638542369] [2020-11-06 22:09:46,850 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:09:47,129 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-06 22:09:47,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:09:47,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 1439 conjuncts, 144 conjunts are in the unsatisfiable core [2020-11-06 22:09:47,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:09:47,582 INFO L134 CoverageAnalysis]: Checked inductivity of 17185 backedges. 0 proven. 7385 refuted. 0 times theorem prover too weak. 9800 trivial. 0 not checked. [2020-11-06 22:09:47,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:09:47,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 75] total 78 [2020-11-06 22:09:47,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903983251] [2020-11-06 22:09:47,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 78 states [2020-11-06 22:09:47,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:09:47,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2020-11-06 22:09:47,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2710, Invalid=3296, Unknown=0, NotChecked=0, Total=6006 [2020-11-06 22:09:47,584 INFO L87 Difference]: Start difference. First operand 238 states and 246 transitions. Second operand 78 states. [2020-11-06 22:09:54,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:09:54,607 INFO L93 Difference]: Finished difference Result 248 states and 258 transitions. [2020-11-06 22:09:54,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2020-11-06 22:09:54,608 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 505 [2020-11-06 22:09:54,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:09:54,611 INFO L225 Difference]: With dead ends: 248 [2020-11-06 22:09:54,611 INFO L226 Difference]: Without dead ends: 243 [2020-11-06 22:09:54,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 798 GetRequests, 646 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5473 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=8488, Invalid=15074, Unknown=0, NotChecked=0, Total=23562 [2020-11-06 22:09:54,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-11-06 22:09:54,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 241. [2020-11-06 22:09:54,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-11-06 22:09:54,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 249 transitions. [2020-11-06 22:09:54,622 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 249 transitions. Word has length 505 [2020-11-06 22:09:54,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:09:54,622 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 249 transitions. [2020-11-06 22:09:54,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 78 states. [2020-11-06 22:09:54,622 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 249 transitions. [2020-11-06 22:09:54,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2020-11-06 22:09:54,626 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:09:54,626 INFO L422 BasicCegarLoop]: trace histogram [72, 72, 71, 71, 71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:09:54,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable71 [2020-11-06 22:09:54,840 INFO L429 AbstractCegarLoop]: === Iteration 73 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:09:54,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:09:54,841 INFO L82 PathProgramCache]: Analyzing trace with hash 763345281, now seen corresponding path program 71 times [2020-11-06 22:09:54,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:09:54,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481774794] [2020-11-06 22:09:54,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:09:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:55,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:09:55,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:55,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:09:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:55,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:55,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:55,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:55,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:56,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:56,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:56,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:56,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:57,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:57,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:57,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:57,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:57,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:58,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:58,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:58,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:58,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:58,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:58,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:58,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:59,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:59,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:59,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:59,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:59,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:09:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:09:59,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:00,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:00,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:00,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:00,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:00,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:00,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:00,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:01,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:01,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:01,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:01,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:01,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:01,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:01,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:01,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:01,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:01,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:02,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:02,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:02,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:02,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:02,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:02,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:02,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:02,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:02,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:02,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:03,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:03,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:03,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:03,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:03,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:03,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:03,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:03,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:03,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:04,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:04,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:04,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:04,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:04,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:04,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:04,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:04,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:04,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:04,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:05,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:05,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:05,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:05,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:05,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:05,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:05,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:05,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:05,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:05,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:05,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:05,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:06,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:06,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:06,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:10,910 INFO L134 CoverageAnalysis]: Checked inductivity of 17679 backedges. 0 proven. 7597 refuted. 0 times theorem prover too weak. 10082 trivial. 0 not checked. [2020-11-06 22:10:10,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481774794] [2020-11-06 22:10:10,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385818665] [2020-11-06 22:10:10,910 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:10:11,283 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 72 check-sat command(s) [2020-11-06 22:10:11,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:10:11,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 1458 conjuncts, 146 conjunts are in the unsatisfiable core [2020-11-06 22:10:11,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:10:11,746 INFO L134 CoverageAnalysis]: Checked inductivity of 17679 backedges. 0 proven. 7597 refuted. 0 times theorem prover too weak. 10082 trivial. 0 not checked. [2020-11-06 22:10:11,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:10:11,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 76] total 79 [2020-11-06 22:10:11,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374805195] [2020-11-06 22:10:11,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 79 states [2020-11-06 22:10:11,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:10:11,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2020-11-06 22:10:11,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2784, Invalid=3378, Unknown=0, NotChecked=0, Total=6162 [2020-11-06 22:10:11,748 INFO L87 Difference]: Start difference. First operand 241 states and 249 transitions. Second operand 79 states. [2020-11-06 22:10:18,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:10:18,943 INFO L93 Difference]: Finished difference Result 251 states and 261 transitions. [2020-11-06 22:10:18,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2020-11-06 22:10:18,944 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 512 [2020-11-06 22:10:18,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:10:18,947 INFO L225 Difference]: With dead ends: 251 [2020-11-06 22:10:18,947 INFO L226 Difference]: Without dead ends: 246 [2020-11-06 22:10:18,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 809 GetRequests, 655 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5622 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=8715, Invalid=15465, Unknown=0, NotChecked=0, Total=24180 [2020-11-06 22:10:18,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-11-06 22:10:18,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 244. [2020-11-06 22:10:18,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-11-06 22:10:18,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 252 transitions. [2020-11-06 22:10:18,955 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 252 transitions. Word has length 512 [2020-11-06 22:10:18,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:10:18,956 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 252 transitions. [2020-11-06 22:10:18,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 79 states. [2020-11-06 22:10:18,956 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 252 transitions. [2020-11-06 22:10:18,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2020-11-06 22:10:18,959 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:10:18,960 INFO L422 BasicCegarLoop]: trace histogram [73, 73, 72, 72, 72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:10:19,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,72 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:10:19,173 INFO L429 AbstractCegarLoop]: === Iteration 74 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:10:19,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:10:19,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1345584262, now seen corresponding path program 72 times [2020-11-06 22:10:19,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:10:19,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385087874] [2020-11-06 22:10:19,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:10:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:19,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:10:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:19,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:10:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:19,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:19,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:20,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:20,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:20,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:20,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:20,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:21,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:21,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:21,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:21,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:21,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:22,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:22,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:22,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:22,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:23,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:23,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:23,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:23,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:23,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:23,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:24,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:24,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:24,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:24,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:24,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:24,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:24,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:25,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:25,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:25,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:25,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:25,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:25,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:25,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:25,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:26,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:26,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:26,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:26,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:26,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:26,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:26,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:26,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:27,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:27,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:27,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:27,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:27,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:27,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:27,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:27,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:27,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:28,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:28,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:28,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:28,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:28,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:28,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:28,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:28,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:28,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:29,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:29,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:29,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:29,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:29,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:29,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:29,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:29,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:29,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:29,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:29,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:29,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:29,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:30,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:30,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:30,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:30,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:30,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:30,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:30,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:30,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:31,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:35,891 INFO L134 CoverageAnalysis]: Checked inductivity of 18180 backedges. 0 proven. 7812 refuted. 0 times theorem prover too weak. 10368 trivial. 0 not checked. [2020-11-06 22:10:35,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385087874] [2020-11-06 22:10:35,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619023933] [2020-11-06 22:10:35,892 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:10:36,281 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 73 check-sat command(s) [2020-11-06 22:10:36,282 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:10:36,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 1477 conjuncts, 148 conjunts are in the unsatisfiable core [2020-11-06 22:10:36,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:10:36,901 INFO L134 CoverageAnalysis]: Checked inductivity of 18180 backedges. 0 proven. 7812 refuted. 0 times theorem prover too weak. 10368 trivial. 0 not checked. [2020-11-06 22:10:36,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:10:36,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 77] total 80 [2020-11-06 22:10:36,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535439556] [2020-11-06 22:10:36,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 80 states [2020-11-06 22:10:36,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:10:36,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2020-11-06 22:10:36,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2859, Invalid=3461, Unknown=0, NotChecked=0, Total=6320 [2020-11-06 22:10:36,905 INFO L87 Difference]: Start difference. First operand 244 states and 252 transitions. Second operand 80 states. [2020-11-06 22:10:44,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:10:44,276 INFO L93 Difference]: Finished difference Result 254 states and 264 transitions. [2020-11-06 22:10:44,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2020-11-06 22:10:44,277 INFO L78 Accepts]: Start accepts. Automaton has 80 states. Word has length 519 [2020-11-06 22:10:44,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:10:44,280 INFO L225 Difference]: With dead ends: 254 [2020-11-06 22:10:44,280 INFO L226 Difference]: Without dead ends: 249 [2020-11-06 22:10:44,282 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 820 GetRequests, 664 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5773 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=8945, Invalid=15861, Unknown=0, NotChecked=0, Total=24806 [2020-11-06 22:10:44,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-11-06 22:10:44,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 247. [2020-11-06 22:10:44,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-11-06 22:10:44,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 255 transitions. [2020-11-06 22:10:44,289 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 255 transitions. Word has length 519 [2020-11-06 22:10:44,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:10:44,290 INFO L481 AbstractCegarLoop]: Abstraction has 247 states and 255 transitions. [2020-11-06 22:10:44,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 80 states. [2020-11-06 22:10:44,290 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 255 transitions. [2020-11-06 22:10:44,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2020-11-06 22:10:44,293 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:10:44,293 INFO L422 BasicCegarLoop]: trace histogram [74, 74, 73, 73, 73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:10:44,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,73 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:10:44,507 INFO L429 AbstractCegarLoop]: === Iteration 75 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:10:44,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:10:44,508 INFO L82 PathProgramCache]: Analyzing trace with hash -245305581, now seen corresponding path program 73 times [2020-11-06 22:10:44,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:10:44,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370348852] [2020-11-06 22:10:44,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:10:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:44,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:10:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:44,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:10:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:45,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:45,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:45,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:45,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:45,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:46,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:46,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:46,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:46,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:47,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:47,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:47,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:47,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:47,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:48,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:48,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:48,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:48,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:48,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:48,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:49,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:49,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:49,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:49,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:49,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:49,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:50,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:50,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:50,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:50,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:50,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:50,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:50,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:51,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:51,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:51,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:51,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:51,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:51,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:51,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:52,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:52,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:52,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:52,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:52,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:52,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:52,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:52,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:53,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:53,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:53,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:53,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:53,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:53,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:53,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:53,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:53,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:54,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:54,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:54,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:54,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:54,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:54,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:54,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:54,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:55,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:55,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:55,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:55,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:55,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:55,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:55,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:55,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:55,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:56,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:56,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:56,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:56,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:56,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:56,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:10:56,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:10:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:01,858 INFO L134 CoverageAnalysis]: Checked inductivity of 18688 backedges. 0 proven. 8030 refuted. 0 times theorem prover too weak. 10658 trivial. 0 not checked. [2020-11-06 22:11:01,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370348852] [2020-11-06 22:11:01,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869055495] [2020-11-06 22:11:01,859 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:11:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:02,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 1496 conjuncts, 150 conjunts are in the unsatisfiable core [2020-11-06 22:11:02,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:11:02,619 INFO L134 CoverageAnalysis]: Checked inductivity of 18688 backedges. 0 proven. 8030 refuted. 0 times theorem prover too weak. 10658 trivial. 0 not checked. [2020-11-06 22:11:02,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:11:02,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 78] total 81 [2020-11-06 22:11:02,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447891393] [2020-11-06 22:11:02,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 81 states [2020-11-06 22:11:02,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:11:02,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2020-11-06 22:11:02,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2935, Invalid=3545, Unknown=0, NotChecked=0, Total=6480 [2020-11-06 22:11:02,622 INFO L87 Difference]: Start difference. First operand 247 states and 255 transitions. Second operand 81 states. [2020-11-06 22:11:10,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:11:10,238 INFO L93 Difference]: Finished difference Result 257 states and 267 transitions. [2020-11-06 22:11:10,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2020-11-06 22:11:10,240 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 526 [2020-11-06 22:11:10,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:11:10,242 INFO L225 Difference]: With dead ends: 257 [2020-11-06 22:11:10,242 INFO L226 Difference]: Without dead ends: 252 [2020-11-06 22:11:10,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 831 GetRequests, 673 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5926 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=9178, Invalid=16262, Unknown=0, NotChecked=0, Total=25440 [2020-11-06 22:11:10,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-11-06 22:11:10,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 250. [2020-11-06 22:11:10,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-11-06 22:11:10,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 258 transitions. [2020-11-06 22:11:10,250 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 258 transitions. Word has length 526 [2020-11-06 22:11:10,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:11:10,250 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 258 transitions. [2020-11-06 22:11:10,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 81 states. [2020-11-06 22:11:10,251 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 258 transitions. [2020-11-06 22:11:10,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2020-11-06 22:11:10,253 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:11:10,253 INFO L422 BasicCegarLoop]: trace histogram [75, 75, 74, 74, 74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:11:10,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:11:10,454 INFO L429 AbstractCegarLoop]: === Iteration 76 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:11:10,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:11:10,455 INFO L82 PathProgramCache]: Analyzing trace with hash 315054452, now seen corresponding path program 74 times [2020-11-06 22:11:10,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:11:10,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6481527] [2020-11-06 22:11:10,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:11:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:10,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:11:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:10,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:11:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:11,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:11,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:11,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:11,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:12,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:12,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:12,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:13,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:13,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:13,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:13,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:13,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:13,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:14,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:14,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:14,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:14,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:14,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:14,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:15,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:15,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:15,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:15,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:15,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:16,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:16,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:16,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:16,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:16,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:16,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:17,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:17,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:17,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:17,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:17,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:17,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:17,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:17,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:17,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:18,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:18,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:18,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:18,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:18,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:18,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:19,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:19,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:19,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:19,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:19,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:19,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:19,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:19,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:19,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:20,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:20,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:20,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:20,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:20,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:20,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:20,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:20,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:20,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:21,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:21,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:21,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:21,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:21,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:21,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:21,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:21,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:21,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:21,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:21,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:22,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:22,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:22,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:22,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:22,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:22,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:22,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:22,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:22,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:22,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:22,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:23,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:23,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:23,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:23,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:28,686 INFO L134 CoverageAnalysis]: Checked inductivity of 19203 backedges. 0 proven. 8251 refuted. 0 times theorem prover too weak. 10952 trivial. 0 not checked. [2020-11-06 22:11:28,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6481527] [2020-11-06 22:11:28,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832865002] [2020-11-06 22:11:28,687 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:11:28,972 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-06 22:11:28,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:11:28,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 1515 conjuncts, 152 conjunts are in the unsatisfiable core [2020-11-06 22:11:28,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:11:29,486 INFO L134 CoverageAnalysis]: Checked inductivity of 19203 backedges. 0 proven. 8251 refuted. 0 times theorem prover too weak. 10952 trivial. 0 not checked. [2020-11-06 22:11:29,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:11:29,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 79] total 82 [2020-11-06 22:11:29,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762463789] [2020-11-06 22:11:29,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 82 states [2020-11-06 22:11:29,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:11:29,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2020-11-06 22:11:29,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3012, Invalid=3630, Unknown=0, NotChecked=0, Total=6642 [2020-11-06 22:11:29,489 INFO L87 Difference]: Start difference. First operand 250 states and 258 transitions. Second operand 82 states. [2020-11-06 22:11:37,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:11:37,256 INFO L93 Difference]: Finished difference Result 260 states and 270 transitions. [2020-11-06 22:11:37,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2020-11-06 22:11:37,257 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 533 [2020-11-06 22:11:37,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:11:37,259 INFO L225 Difference]: With dead ends: 260 [2020-11-06 22:11:37,259 INFO L226 Difference]: Without dead ends: 255 [2020-11-06 22:11:37,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 842 GetRequests, 682 SyntacticMatches, 0 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6081 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=9414, Invalid=16668, Unknown=0, NotChecked=0, Total=26082 [2020-11-06 22:11:37,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-11-06 22:11:37,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 253. [2020-11-06 22:11:37,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-11-06 22:11:37,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 261 transitions. [2020-11-06 22:11:37,266 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 261 transitions. Word has length 533 [2020-11-06 22:11:37,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:11:37,267 INFO L481 AbstractCegarLoop]: Abstraction has 253 states and 261 transitions. [2020-11-06 22:11:37,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 82 states. [2020-11-06 22:11:37,267 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 261 transitions. [2020-11-06 22:11:37,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2020-11-06 22:11:37,269 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:11:37,270 INFO L422 BasicCegarLoop]: trace histogram [76, 76, 75, 75, 75, 75, 75, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:11:37,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2020-11-06 22:11:37,470 INFO L429 AbstractCegarLoop]: === Iteration 77 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:11:37,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:11:37,471 INFO L82 PathProgramCache]: Analyzing trace with hash -878692443, now seen corresponding path program 75 times [2020-11-06 22:11:37,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:11:37,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457223415] [2020-11-06 22:11:37,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:11:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:37,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:11:37,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:37,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:11:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:38,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:38,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:38,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:38,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:38,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:39,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:39,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:39,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:39,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:39,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:39,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:39,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:40,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:40,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:40,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:40,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:40,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:41,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:41,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:41,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:41,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:41,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:42,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:42,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:42,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:42,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:42,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:42,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:43,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:43,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:43,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:43,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:43,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:43,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:44,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:44,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:44,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:44,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:44,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:44,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:45,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:45,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:45,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:45,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:45,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:45,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:45,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:46,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:46,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:46,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:46,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:46,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:46,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:46,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:46,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:46,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:47,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:47,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:47,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:47,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:47,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:47,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:47,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:47,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:47,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:48,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:48,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:48,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:48,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:48,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:48,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:48,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:48,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:48,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:48,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:49,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:49,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:49,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:49,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:49,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:49,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:49,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:49,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:49,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:50,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:50,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:50,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:50,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:50,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:50,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:50,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:50,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:50,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:11:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:11:56,174 INFO L134 CoverageAnalysis]: Checked inductivity of 19725 backedges. 0 proven. 8475 refuted. 0 times theorem prover too weak. 11250 trivial. 0 not checked. [2020-11-06 22:11:56,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457223415] [2020-11-06 22:11:56,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14136867] [2020-11-06 22:11:56,175 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:11:56,598 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 76 check-sat command(s) [2020-11-06 22:11:56,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:11:56,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 1534 conjuncts, 154 conjunts are in the unsatisfiable core [2020-11-06 22:11:56,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:11:57,100 INFO L134 CoverageAnalysis]: Checked inductivity of 19725 backedges. 0 proven. 8475 refuted. 0 times theorem prover too weak. 11250 trivial. 0 not checked. [2020-11-06 22:11:57,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:11:57,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 80] total 83 [2020-11-06 22:11:57,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890041936] [2020-11-06 22:11:57,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 83 states [2020-11-06 22:11:57,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:11:57,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2020-11-06 22:11:57,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3090, Invalid=3716, Unknown=0, NotChecked=0, Total=6806 [2020-11-06 22:11:57,102 INFO L87 Difference]: Start difference. First operand 253 states and 261 transitions. Second operand 83 states. [2020-11-06 22:12:05,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:12:05,150 INFO L93 Difference]: Finished difference Result 263 states and 273 transitions. [2020-11-06 22:12:05,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2020-11-06 22:12:05,151 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 540 [2020-11-06 22:12:05,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:12:05,153 INFO L225 Difference]: With dead ends: 263 [2020-11-06 22:12:05,154 INFO L226 Difference]: Without dead ends: 258 [2020-11-06 22:12:05,157 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 853 GetRequests, 691 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6238 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=9653, Invalid=17079, Unknown=0, NotChecked=0, Total=26732 [2020-11-06 22:12:05,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-11-06 22:12:05,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 256. [2020-11-06 22:12:05,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-11-06 22:12:05,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 264 transitions. [2020-11-06 22:12:05,163 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 264 transitions. Word has length 540 [2020-11-06 22:12:05,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:12:05,164 INFO L481 AbstractCegarLoop]: Abstraction has 256 states and 264 transitions. [2020-11-06 22:12:05,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 83 states. [2020-11-06 22:12:05,164 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 264 transitions. [2020-11-06 22:12:05,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2020-11-06 22:12:05,167 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:12:05,168 INFO L422 BasicCegarLoop]: trace histogram [77, 77, 76, 76, 76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:12:05,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,76 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:12:05,383 INFO L429 AbstractCegarLoop]: === Iteration 78 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:12:05,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:12:05,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1117637790, now seen corresponding path program 76 times [2020-11-06 22:12:05,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:12:05,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852992429] [2020-11-06 22:12:05,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:12:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:05,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:12:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:05,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:12:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:06,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:06,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:06,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:06,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:07,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:07,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:07,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:07,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:07,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:08,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:08,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:08,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:08,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:08,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:09,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:09,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:09,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:09,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:09,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:10,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:10,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:10,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:10,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:10,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:10,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:11,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:11,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:11,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:11,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:11,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:12,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:12,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:12,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:12,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:12,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:12,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:12,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:13,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:13,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:13,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:13,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:13,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:14,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:14,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:14,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:14,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:14,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:14,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:14,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:14,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:14,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:14,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:15,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:15,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:15,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:15,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:15,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:15,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:15,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:15,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:16,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:16,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:16,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:16,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:16,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:16,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:16,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:16,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:17,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:17,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:17,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:17,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:17,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:17,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:17,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:17,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:18,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:18,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:18,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:18,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:18,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:18,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:18,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:18,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:18,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:18,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:19,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:19,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:24,844 INFO L134 CoverageAnalysis]: Checked inductivity of 20254 backedges. 0 proven. 8702 refuted. 0 times theorem prover too weak. 11552 trivial. 0 not checked. [2020-11-06 22:12:24,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852992429] [2020-11-06 22:12:24,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96057765] [2020-11-06 22:12:24,845 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:12:25,148 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-06 22:12:25,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:12:25,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 1553 conjuncts, 156 conjunts are in the unsatisfiable core [2020-11-06 22:12:25,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:12:25,704 INFO L134 CoverageAnalysis]: Checked inductivity of 20254 backedges. 0 proven. 8702 refuted. 0 times theorem prover too weak. 11552 trivial. 0 not checked. [2020-11-06 22:12:25,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:12:25,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 81] total 84 [2020-11-06 22:12:25,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970531846] [2020-11-06 22:12:25,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 84 states [2020-11-06 22:12:25,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:12:25,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2020-11-06 22:12:25,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3169, Invalid=3803, Unknown=0, NotChecked=0, Total=6972 [2020-11-06 22:12:25,707 INFO L87 Difference]: Start difference. First operand 256 states and 264 transitions. Second operand 84 states. [2020-11-06 22:12:33,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:12:33,857 INFO L93 Difference]: Finished difference Result 266 states and 276 transitions. [2020-11-06 22:12:33,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2020-11-06 22:12:33,858 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 547 [2020-11-06 22:12:33,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:12:33,860 INFO L225 Difference]: With dead ends: 266 [2020-11-06 22:12:33,860 INFO L226 Difference]: Without dead ends: 261 [2020-11-06 22:12:33,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 864 GetRequests, 700 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6397 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=9895, Invalid=17495, Unknown=0, NotChecked=0, Total=27390 [2020-11-06 22:12:33,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-11-06 22:12:33,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 259. [2020-11-06 22:12:33,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-11-06 22:12:33,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 267 transitions. [2020-11-06 22:12:33,870 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 267 transitions. Word has length 547 [2020-11-06 22:12:33,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:12:33,870 INFO L481 AbstractCegarLoop]: Abstraction has 259 states and 267 transitions. [2020-11-06 22:12:33,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 84 states. [2020-11-06 22:12:33,870 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 267 transitions. [2020-11-06 22:12:33,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2020-11-06 22:12:33,874 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:12:33,874 INFO L422 BasicCegarLoop]: trace histogram [78, 78, 77, 77, 77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:12:34,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,77 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:12:34,087 INFO L429 AbstractCegarLoop]: === Iteration 79 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:12:34,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:12:34,088 INFO L82 PathProgramCache]: Analyzing trace with hash 942306103, now seen corresponding path program 77 times [2020-11-06 22:12:34,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:12:34,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665373862] [2020-11-06 22:12:34,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:12:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:34,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:12:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:34,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:12:34,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:34,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:35,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:35,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:35,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:35,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:36,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:36,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:36,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:36,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:37,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:37,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:37,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:37,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:38,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:38,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:38,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:38,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:38,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:39,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:39,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:39,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:39,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:39,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:40,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:40,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:40,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:40,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:40,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:40,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:40,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:41,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:41,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:41,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:41,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:41,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:41,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:42,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:42,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:42,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:42,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:42,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:42,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:43,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:43,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:43,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:43,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:43,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:43,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:43,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:43,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:44,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:44,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:44,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:44,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:44,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:44,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:44,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:44,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:45,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:45,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:45,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:45,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:45,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:45,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:45,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:45,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:46,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:46,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:46,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:46,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:46,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:46,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:46,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:46,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:47,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:47,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:47,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:47,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:47,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:47,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:47,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:47,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:47,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:48,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:48,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:48,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:48,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:48,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:48,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:48,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:12:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:12:54,596 INFO L134 CoverageAnalysis]: Checked inductivity of 20790 backedges. 0 proven. 8932 refuted. 0 times theorem prover too weak. 11858 trivial. 0 not checked. [2020-11-06 22:12:54,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665373862] [2020-11-06 22:12:54,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365465366] [2020-11-06 22:12:54,596 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:12:55,079 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 78 check-sat command(s) [2020-11-06 22:12:55,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:12:55,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 1572 conjuncts, 158 conjunts are in the unsatisfiable core [2020-11-06 22:12:55,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:12:55,711 INFO L134 CoverageAnalysis]: Checked inductivity of 20790 backedges. 0 proven. 8932 refuted. 0 times theorem prover too weak. 11858 trivial. 0 not checked. [2020-11-06 22:12:55,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:12:55,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [83, 82] total 85 [2020-11-06 22:12:55,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692676222] [2020-11-06 22:12:55,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 85 states [2020-11-06 22:12:55,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:12:55,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2020-11-06 22:12:55,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3249, Invalid=3891, Unknown=0, NotChecked=0, Total=7140 [2020-11-06 22:12:55,714 INFO L87 Difference]: Start difference. First operand 259 states and 267 transitions. Second operand 85 states. [2020-11-06 22:13:04,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:13:04,197 INFO L93 Difference]: Finished difference Result 269 states and 279 transitions. [2020-11-06 22:13:04,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2020-11-06 22:13:04,198 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 554 [2020-11-06 22:13:04,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:13:04,201 INFO L225 Difference]: With dead ends: 269 [2020-11-06 22:13:04,201 INFO L226 Difference]: Without dead ends: 264 [2020-11-06 22:13:04,205 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 875 GetRequests, 709 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6558 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=10140, Invalid=17916, Unknown=0, NotChecked=0, Total=28056 [2020-11-06 22:13:04,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-11-06 22:13:04,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 262. [2020-11-06 22:13:04,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-11-06 22:13:04,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 270 transitions. [2020-11-06 22:13:04,211 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 270 transitions. Word has length 554 [2020-11-06 22:13:04,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:13:04,212 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 270 transitions. [2020-11-06 22:13:04,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 85 states. [2020-11-06 22:13:04,212 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 270 transitions. [2020-11-06 22:13:04,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2020-11-06 22:13:04,215 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:13:04,216 INFO L422 BasicCegarLoop]: trace histogram [79, 79, 78, 78, 78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:13:04,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2020-11-06 22:13:04,431 INFO L429 AbstractCegarLoop]: === Iteration 80 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:13:04,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:13:04,432 INFO L82 PathProgramCache]: Analyzing trace with hash 359115344, now seen corresponding path program 78 times [2020-11-06 22:13:04,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:13:04,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786617424] [2020-11-06 22:13:04,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:13:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:13:04,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:13:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:13:04,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:13:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:13:05,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:13:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:13:05,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:13:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:13:05,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:13:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:13:06,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:13:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:13:06,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:13:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:13:06,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:13:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:13:06,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:13:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:13:07,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:13:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:13:07,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:13:07,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:13:07,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:13:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:13:08,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:13:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:13:08,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:13:08,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:13:08,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:13:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:13:08,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:13:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:13:09,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:13:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:13:09,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:13:09,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:13:09,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:13:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat