/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.7.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:27:53,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:27:53,441 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:27:53,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:27:53,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:27:53,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:27:53,476 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:27:53,478 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:27:53,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:27:53,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:27:53,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:27:53,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:27:53,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:27:53,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:27:53,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:27:53,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:27:53,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:27:53,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:27:53,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:27:53,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:27:53,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:27:53,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:27:53,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:27:53,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:27:53,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:27:53,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:27:53,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:27:53,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:27:53,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:27:53,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:27:53,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:27:53,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:27:53,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:27:53,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:27:53,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:27:53,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:27:53,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:27:53,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:27:53,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:27:53,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:27:53,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:27:53,540 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 13:27:53,568 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:27:53,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:27:53,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:27:53,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:27:53,570 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:27:53,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:27:53,570 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:27:53,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:27:53,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:27:53,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:27:53,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:27:53,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:27:53,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:27:53,571 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:27:53,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:27:53,572 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:27:53,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:27:53,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:27:53,572 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:27:53,573 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:27:53,573 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:27:53,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:27:53,573 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:27:53,573 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:27:53,573 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:27:53,574 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:27:53,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:27:53,574 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:27:53,574 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:27:53,574 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 13:27:53,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:27:53,873 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:27:53,876 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:27:53,878 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:27:53,878 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:27:53,879 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.7.1.ufo.UNBOUNDED.pals.c [2020-10-13 13:27:53,937 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7457cfa29/b124142f448443928ffa34b213c03d9a/FLAGe6b0c9b03 [2020-10-13 13:27:54,420 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:27:54,421 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.7.1.ufo.UNBOUNDED.pals.c [2020-10-13 13:27:54,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7457cfa29/b124142f448443928ffa34b213c03d9a/FLAGe6b0c9b03 [2020-10-13 13:27:54,735 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7457cfa29/b124142f448443928ffa34b213c03d9a [2020-10-13 13:27:54,743 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:27:54,745 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:27:54,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:27:54,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:27:54,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:27:54,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:27:54" (1/1) ... [2020-10-13 13:27:54,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cf7d031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:27:54, skipping insertion in model container [2020-10-13 13:27:54,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:27:54" (1/1) ... [2020-10-13 13:27:54,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:27:54,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:27:55,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:27:55,237 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:27:55,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:27:55,358 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:27:55,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:27:55 WrapperNode [2020-10-13 13:27:55,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:27:55,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:27:55,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:27:55,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:27:55,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:27:55" (1/1) ... [2020-10-13 13:27:55,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:27:55" (1/1) ... [2020-10-13 13:27:55,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:27:55" (1/1) ... [2020-10-13 13:27:55,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:27:55" (1/1) ... [2020-10-13 13:27:55,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:27:55" (1/1) ... [2020-10-13 13:27:55,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:27:55" (1/1) ... [2020-10-13 13:27:55,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:27:55" (1/1) ... [2020-10-13 13:27:55,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:27:55,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:27:55,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:27:55,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:27:55,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:27:55" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-13 13:27:55,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:27:55,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:27:55,484 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 13:27:55,484 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-13 13:27:55,484 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-13 13:27:55,484 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-13 13:27:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-13 13:27:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-13 13:27:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-13 13:27:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure node7 [2020-10-13 13:27:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 13:27:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-13 13:27:55,486 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:27:55,486 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-13 13:27:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:27:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 13:27:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 13:27:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-13 13:27:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 13:27:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 13:27:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 13:27:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 13:27:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 13:27:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 13:27:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 13:27:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 13:27:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 13:27:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-13 13:27:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-13 13:27:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure node7 [2020-10-13 13:27:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 13:27:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 13:27:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:27:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:27:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:27:56,343 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:27:56,343 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 13:27:56,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:27:56 BoogieIcfgContainer [2020-10-13 13:27:56,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:27:56,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:27:56,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:27:56,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:27:56,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:27:54" (1/3) ... [2020-10-13 13:27:56,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c8a4f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:27:56, skipping insertion in model container [2020-10-13 13:27:56,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:27:55" (2/3) ... [2020-10-13 13:27:56,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c8a4f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:27:56, skipping insertion in model container [2020-10-13 13:27:56,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:27:56" (3/3) ... [2020-10-13 13:27:56,358 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.UNBOUNDED.pals.c [2020-10-13 13:27:56,369 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:27:56,377 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:27:56,391 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:27:56,413 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:27:56,413 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:27:56,413 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:27:56,413 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:27:56,414 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:27:56,414 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:27:56,414 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:27:56,414 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:27:56,436 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states. [2020-10-13 13:27:56,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-13 13:27:56,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:27:56,448 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:27:56,449 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:27:56,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:27:56,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1213243566, now seen corresponding path program 1 times [2020-10-13 13:27:56,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:27:56,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2033127600] [2020-10-13 13:27:56,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:27:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:56,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:57,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:57,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-13 13:27:57,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:57,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 410 [2020-10-13 13:27:57,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:57,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:57,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-13 13:27:57,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:57,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 13:27:57,478 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-13 13:27:57,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:27:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:57,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:57,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:57,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:27:57,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:57,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 13:27:57,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:57,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:57,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:57,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:57,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:57,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:27:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:57,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:57,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:57,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:27:57,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:57,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:27:57,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:57,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:57,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:57,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:57,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:57,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 13:27:57,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:57,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:57,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:57,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:57,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:57,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:57,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:57,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:57,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:27:57,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:57,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:57,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 13:27:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:57,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:57,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:57,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:57,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:57,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:27:57,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:57,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:57,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:57,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:57,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 13:27:57,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 13:27:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:57,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:57,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:57,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:57,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:57,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:27:57,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:57,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:57,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:57,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:57,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:57,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 13:27:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:57,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:57,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:57,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:57,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:57,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:27:57,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:57,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:57,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:57,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:57,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:57,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:27:57,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:57,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:57,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:57,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:57,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:57,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:27:57,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:57,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:57,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:57,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:57,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 23 [2020-10-13 13:27:57,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 13:27:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:57,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:57,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:57,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:57,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:57,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:27:57,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:57,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:57,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:57,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:57,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:57,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 13:27:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:57,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:57,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:57,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:57,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:57,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:27:57,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:57,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:57,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:57,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:57,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:57,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:27:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:57,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:57,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:57,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:57,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:57,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:27:57,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:57,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:57,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:57,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:57,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:57,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 13:27:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:57,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:57,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:57,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:27:57,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:57,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:57,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:57,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:57,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:27:57,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:57,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:57,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:27:57,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2033127600] [2020-10-13 13:27:57,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:27:57,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:27:57,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245231111] [2020-10-13 13:27:57,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:27:57,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:27:57,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:27:57,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:27:57,942 INFO L87 Difference]: Start difference. First operand 172 states. Second operand 10 states. [2020-10-13 13:27:59,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:27:59,608 INFO L93 Difference]: Finished difference Result 275 states and 414 transitions. [2020-10-13 13:27:59,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 13:27:59,610 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2020-10-13 13:27:59,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:27:59,623 INFO L225 Difference]: With dead ends: 275 [2020-10-13 13:27:59,623 INFO L226 Difference]: Without dead ends: 168 [2020-10-13 13:27:59,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-10-13 13:27:59,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-10-13 13:27:59,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 167. [2020-10-13 13:27:59,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-10-13 13:27:59,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 258 transitions. [2020-10-13 13:27:59,690 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 258 transitions. Word has length 81 [2020-10-13 13:27:59,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:27:59,691 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 258 transitions. [2020-10-13 13:27:59,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:27:59,691 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 258 transitions. [2020-10-13 13:27:59,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-13 13:27:59,695 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:27:59,695 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:27:59,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:27:59,696 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:27:59,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:27:59,696 INFO L82 PathProgramCache]: Analyzing trace with hash 481276140, now seen corresponding path program 1 times [2020-10-13 13:27:59,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:27:59,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1801472130] [2020-10-13 13:27:59,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:27:59,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:59,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:00,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:00,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-13 13:28:00,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:00,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 794 [2020-10-13 13:28:00,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:00,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:28:00,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 13:28:00,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:28:00,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:00,748 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-13 13:28:00,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:00,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:00,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:00,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:00,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:00,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:28:00,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:00,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:00,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:00,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:00,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-13 13:28:00,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:00,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:00,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:00,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:00,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:00,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:00,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:28:00,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:00,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:00,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:00,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:28:00,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:00,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 13:28:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:00,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:00,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:00,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:00,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:00,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:28:00,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:00,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:00,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:28:00,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:28:00,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:00,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 13:28:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:00,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:00,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:00,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:00,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:00,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:28:00,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:00,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:00,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:00,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:00,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:00,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 13:28:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:00,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:00,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:00,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:00,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:00,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:00,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:00,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:00,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:00,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:00,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:00,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 13:28:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:00,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:01,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:01,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:01,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:01,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:01,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:01,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:01,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:01,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:01,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:01,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:28:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:01,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:01,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:01,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:01,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:01,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:01,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:01,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:01,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:01,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:01,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:01,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 13:28:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:01,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:01,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:01,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:01,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:01,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:28:01,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:01,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:01,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:01,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:01,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:01,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 13:28:01,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:01,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:01,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:01,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:01,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:01,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:28:01,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:01,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:01,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:01,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:01,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:01,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:28:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:01,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:01,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:01,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:01,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:01,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:01,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:01,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:01,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:01,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:01,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:01,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 13:28:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:01,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:01,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:01,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:01,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:01,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:01,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:01,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:01,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:28:01,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:01,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:01,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:28:01,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1801472130] [2020-10-13 13:28:01,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:01,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-13 13:28:01,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363221863] [2020-10-13 13:28:01,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:28:01,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:01,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:28:01,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:28:01,243 INFO L87 Difference]: Start difference. First operand 167 states and 258 transitions. Second operand 16 states. [2020-10-13 13:28:01,537 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-13 13:28:01,732 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-13 13:28:02,053 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-13 13:28:02,225 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-13 13:28:04,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:04,510 INFO L93 Difference]: Finished difference Result 273 states and 406 transitions. [2020-10-13 13:28:04,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:28:04,510 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 81 [2020-10-13 13:28:04,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:04,515 INFO L225 Difference]: With dead ends: 273 [2020-10-13 13:28:04,516 INFO L226 Difference]: Without dead ends: 168 [2020-10-13 13:28:04,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=175, Invalid=527, Unknown=0, NotChecked=0, Total=702 [2020-10-13 13:28:04,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-10-13 13:28:04,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 167. [2020-10-13 13:28:04,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-10-13 13:28:04,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 208 transitions. [2020-10-13 13:28:04,545 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 208 transitions. Word has length 81 [2020-10-13 13:28:04,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:04,545 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 208 transitions. [2020-10-13 13:28:04,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 13:28:04,546 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 208 transitions. [2020-10-13 13:28:04,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-13 13:28:04,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:04,551 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:28:04,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:28:04,551 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:04,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:04,552 INFO L82 PathProgramCache]: Analyzing trace with hash -150990176, now seen corresponding path program 1 times [2020-10-13 13:28:04,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:04,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586617710] [2020-10-13 13:28:04,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:04,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:04,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:04,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:04,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:05,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:09,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:09,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-13 13:28:09,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:28:09,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-13 13:28:09,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:09,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:09,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-13 13:28:09,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 13:28:09,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:09,849 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-13 13:28:09,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:09,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:09,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:09,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:09,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:09,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:09,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:28:09,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:09,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:09,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:09,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:09,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:09,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:09,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:09,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:09,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 13:28:09,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:09,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 13:28:09,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:09,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:09,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:09,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:28:09,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:10,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:28:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:10,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:10,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:10,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:10,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:10,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:10,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:10,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:10,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:10,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:28:10,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:10,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-13 13:28:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:10,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:10,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:10,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:10,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:10,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:28:10,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:10,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:10,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:10,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:10,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:10,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 13:28:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:10,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:10,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:10,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:10,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:10,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:28:10,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:10,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:10,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:10,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:28:10,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:10,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-13 13:28:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:10,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:10,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:10,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:10,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:10,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:28:10,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:10,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:10,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:10,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:10,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:10,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:28:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:10,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:10,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:10,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:10,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:10,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:10,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:10,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:10,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:10,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:10,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:10,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:28:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:10,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:10,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:10,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:10,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:10,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:10,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:10,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:10,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:10,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:10,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:10,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 13:28:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:10,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:10,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:10,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:10,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:10,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:10,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:10,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:10,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:10,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:10,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:10,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:28:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:10,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:10,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:10,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:10,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:10,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:10,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:10,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:10,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:10,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:10,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:10,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-13 13:28:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:10,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:10,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:10,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:10,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:10,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:10,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:10,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:10,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:28:10,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:10,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:10,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:28:10,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586617710] [2020-10-13 13:28:10,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:10,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:28:10,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690414493] [2020-10-13 13:28:10,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:28:10,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:10,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:28:10,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:28:10,448 INFO L87 Difference]: Start difference. First operand 167 states and 208 transitions. Second operand 13 states. [2020-10-13 13:28:10,674 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-13 13:28:12,904 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:28:13,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:13,929 INFO L93 Difference]: Finished difference Result 361 states and 482 transitions. [2020-10-13 13:28:13,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 13:28:13,929 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 130 [2020-10-13 13:28:13,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:13,941 INFO L225 Difference]: With dead ends: 361 [2020-10-13 13:28:13,942 INFO L226 Difference]: Without dead ends: 262 [2020-10-13 13:28:13,945 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=217, Invalid=595, Unknown=0, NotChecked=0, Total=812 [2020-10-13 13:28:13,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-13 13:28:14,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 258. [2020-10-13 13:28:14,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-10-13 13:28:14,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 337 transitions. [2020-10-13 13:28:14,016 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 337 transitions. Word has length 130 [2020-10-13 13:28:14,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:14,017 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 337 transitions. [2020-10-13 13:28:14,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:28:14,017 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 337 transitions. [2020-10-13 13:28:14,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-13 13:28:14,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:14,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:28:14,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:28:14,028 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:14,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:14,028 INFO L82 PathProgramCache]: Analyzing trace with hash -474953366, now seen corresponding path program 1 times [2020-10-13 13:28:14,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:14,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1239982549] [2020-10-13 13:28:14,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:14,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:14,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:14,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:14,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:16,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:16,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:19,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:19,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-13 13:28:19,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:28:19,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-13 13:28:19,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:19,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:19,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 13:28:19,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 13:28:19,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:19,285 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-13 13:28:19,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:19,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:19,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:19,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:19,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:19,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:19,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:28:19,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:19,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:19,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:19,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:19,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:19,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:19,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:19,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:19,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 13:28:19,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:19,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 13:28:19,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:19,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:19,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:19,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:28:19,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:19,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:28:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:19,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:19,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:19,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:19,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:19,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:19,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:19,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:19,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:19,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:28:19,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:19,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-13 13:28:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:19,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:19,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:19,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:19,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:19,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:28:19,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:19,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:19,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:19,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:19,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:19,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 13:28:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:19,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:19,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:19,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:19,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:19,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:28:19,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:19,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:19,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:19,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:19,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:19,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-13 13:28:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:19,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:19,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:19,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:19,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:19,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:28:19,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:19,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:19,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:19,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:28:19,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:19,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:28:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:19,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:19,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:19,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:19,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:19,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:19,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:19,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:19,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:19,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:19,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:19,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:28:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:19,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:19,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:19,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:19,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:19,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:19,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:19,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:19,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:19,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:19,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:19,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 13:28:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:19,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:19,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:19,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:19,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:19,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:19,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:19,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:19,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:19,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:19,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:19,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:28:19,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:19,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:19,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:19,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:19,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:19,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:19,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:19,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:19,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:19,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:19,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:19,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-13 13:28:19,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:19,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:19,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:19,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:19,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:19,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:19,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:19,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:19,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:28:19,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:19,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:19,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:28:19,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1239982549] [2020-10-13 13:28:19,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:19,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:28:19,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180129741] [2020-10-13 13:28:19,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:28:19,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:19,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:28:19,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:28:19,708 INFO L87 Difference]: Start difference. First operand 258 states and 337 transitions. Second operand 13 states. [2020-10-13 13:28:19,936 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-13 13:28:23,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:23,072 INFO L93 Difference]: Finished difference Result 630 states and 863 transitions. [2020-10-13 13:28:23,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 13:28:23,073 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 130 [2020-10-13 13:28:23,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:23,079 INFO L225 Difference]: With dead ends: 630 [2020-10-13 13:28:23,079 INFO L226 Difference]: Without dead ends: 440 [2020-10-13 13:28:23,081 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2020-10-13 13:28:23,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-10-13 13:28:23,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 434. [2020-10-13 13:28:23,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2020-10-13 13:28:23,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 585 transitions. [2020-10-13 13:28:23,123 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 585 transitions. Word has length 130 [2020-10-13 13:28:23,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:23,124 INFO L479 AbstractCegarLoop]: Abstraction has 434 states and 585 transitions. [2020-10-13 13:28:23,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:28:23,124 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 585 transitions. [2020-10-13 13:28:23,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-13 13:28:23,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:23,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:28:23,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:28:23,126 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:23,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:23,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1543750112, now seen corresponding path program 1 times [2020-10-13 13:28:23,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:23,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1415543999] [2020-10-13 13:28:23,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:23,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:23,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:23,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:23,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:23,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:28,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:28,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-13 13:28:28,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:28:28,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-13 13:28:28,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:28,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:28,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-13 13:28:28,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:28:28,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:28,366 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-13 13:28:28,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:28,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:28,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:28,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:28,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:28,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:28:28,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:28,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:28,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:28,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:28,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:28,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:28,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:28,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:28,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 13:28:28,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:28,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:28:28,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:28,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:28,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:28,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 13:28:28,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:28,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:28:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:28,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:28,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:28,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:28,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:28,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:28,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:28,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:28,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:28,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:28:28,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:28,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-13 13:28:28,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:28,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:28,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:28,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:28,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:28,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:28:28,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:28,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:28,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:28,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:28,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:28,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 13:28:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:28,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:28,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:28,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:28,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:28,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:28:28,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:28,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:28,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:28,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:28,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:28,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-13 13:28:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:28,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:28,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:28,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:28,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:28,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:28:28,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:28,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:28,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:28,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:28,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:28,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:28:28,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:28,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:28,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:28,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:28,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:28,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:28:28,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:28,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:28,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:28,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:28:28,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:28,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:28:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:28,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:28,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:28,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:28,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:28,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:28,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:28,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:28,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:28,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:28,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:28,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 13:28:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:28,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:28,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:28,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:28,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:28,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:28,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:28,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:28,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:28,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:28,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:28,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:28:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:28,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:28,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:28,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:28,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:28,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:28,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:28,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:28,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:28,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:28,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:28,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-13 13:28:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:28,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:28,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:28,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:28,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:28,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:28,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:28,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:28,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:28:28,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:28,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:28,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:28:28,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1415543999] [2020-10-13 13:28:28,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:28,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:28:28,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750403673] [2020-10-13 13:28:28,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:28:28,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:28,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:28:28,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:28:28,901 INFO L87 Difference]: Start difference. First operand 434 states and 585 transitions. Second operand 13 states. [2020-10-13 13:28:29,246 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-13 13:28:32,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:32,448 INFO L93 Difference]: Finished difference Result 1150 states and 1595 transitions. [2020-10-13 13:28:32,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 13:28:32,449 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 130 [2020-10-13 13:28:32,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:32,455 INFO L225 Difference]: With dead ends: 1150 [2020-10-13 13:28:32,455 INFO L226 Difference]: Without dead ends: 784 [2020-10-13 13:28:32,457 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2020-10-13 13:28:32,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2020-10-13 13:28:32,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 774. [2020-10-13 13:28:32,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 774 states. [2020-10-13 13:28:32,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1061 transitions. [2020-10-13 13:28:32,525 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1061 transitions. Word has length 130 [2020-10-13 13:28:32,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:32,526 INFO L479 AbstractCegarLoop]: Abstraction has 774 states and 1061 transitions. [2020-10-13 13:28:32,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:28:32,526 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1061 transitions. [2020-10-13 13:28:32,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-13 13:28:32,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:32,527 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:28:32,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:28:32,528 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:32,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:32,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1773682134, now seen corresponding path program 1 times [2020-10-13 13:28:32,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:32,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [462298980] [2020-10-13 13:28:32,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:32,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:32,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:32,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:32,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-13 13:28:37,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:28:37,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 13:28:37,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:37,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-13 13:28:37,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 13:28:37,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,784 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-13 13:28:37,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:37,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:28:37,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:37,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:37,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:37,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 13:28:37,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:28:37,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:37,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:37,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:28:37,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:28:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:37,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:37,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:37,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:37,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:28:37,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-13 13:28:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:37,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:28:37,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:37,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:37,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:37,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 13:28:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:37,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:37,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:37,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:37,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:37,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-13 13:28:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:37,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:28:37,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:37,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:37,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:37,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:28:37,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:37,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:37,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:37,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:37,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:37,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:28:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:37,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:38,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:38,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:38,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:38,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:28:38,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:38,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 13:28:38,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:38,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:38,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:38,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:38,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:38,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:38,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:38,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:38,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:38,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:38,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:38,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:28:38,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:38,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:38,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:38,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:38,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:38,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:38,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:38,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:38,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:38,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:38,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:38,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-13 13:28:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:38,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:38,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:38,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:38,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:38,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:28:38,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:38,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:38,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:28:38,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:38,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:38,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:28:38,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [462298980] [2020-10-13 13:28:38,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:38,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:28:38,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693043938] [2020-10-13 13:28:38,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:28:38,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:38,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:28:38,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:28:38,145 INFO L87 Difference]: Start difference. First operand 774 states and 1061 transitions. Second operand 13 states. [2020-10-13 13:28:38,396 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-13 13:28:40,811 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-13 13:28:41,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:41,695 INFO L93 Difference]: Finished difference Result 2154 states and 2999 transitions. [2020-10-13 13:28:41,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 13:28:41,696 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 130 [2020-10-13 13:28:41,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:41,720 INFO L225 Difference]: With dead ends: 2154 [2020-10-13 13:28:41,720 INFO L226 Difference]: Without dead ends: 1448 [2020-10-13 13:28:41,725 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2020-10-13 13:28:41,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2020-10-13 13:28:41,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1430. [2020-10-13 13:28:41,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1430 states. [2020-10-13 13:28:41,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 1973 transitions. [2020-10-13 13:28:41,905 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 1973 transitions. Word has length 130 [2020-10-13 13:28:41,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:41,907 INFO L479 AbstractCegarLoop]: Abstraction has 1430 states and 1973 transitions. [2020-10-13 13:28:41,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:28:41,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 1973 transitions. [2020-10-13 13:28:41,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-13 13:28:41,909 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:41,909 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:28:41,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:28:41,909 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:41,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:41,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1325457120, now seen corresponding path program 1 times [2020-10-13 13:28:41,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:41,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1180666098] [2020-10-13 13:28:41,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:41,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:42,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:42,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:45,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:45,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-13 13:28:45,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:28:45,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3234 [2020-10-13 13:28:45,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:45,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:45,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 13:28:45,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 13:28:45,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:45,367 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-13 13:28:45,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:45,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:45,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:45,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:45,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:45,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:45,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:28:45,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:45,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:45,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:45,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:45,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:45,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:45,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:45,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:45,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:45,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 13:28:45,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:45,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:28:45,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:45,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:45,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:45,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 13:28:45,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:45,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:28:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:45,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:45,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:45,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:45,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:45,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:45,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:45,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:45,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:45,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:28:45,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:45,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-13 13:28:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:45,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:45,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:45,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:45,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:45,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:45,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:45,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:45,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:45,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:45,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:45,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 13:28:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:45,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:45,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:45,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:45,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:45,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:45,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:45,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:45,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:45,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:45,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:45,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-13 13:28:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:45,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:45,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:45,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:45,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:45,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:45,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:45,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:45,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:45,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:45,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:45,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:28:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:45,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:45,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:45,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:45,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:45,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:45,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:45,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:45,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:45,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:45,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:45,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:28:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:45,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:45,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:45,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:45,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:45,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:28:45,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:45,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:45,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:45,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:45,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:45,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 13:28:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:45,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:45,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:45,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:45,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:45,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:28:45,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:45,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:45,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:45,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:28:45,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:45,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:28:45,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:45,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:45,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:45,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:45,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:45,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:45,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:45,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:45,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:45,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:45,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:45,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-13 13:28:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:45,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:45,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:45,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:45,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:45,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:45,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:45,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:45,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:28:45,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:45,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:45,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:28:45,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1180666098] [2020-10-13 13:28:45,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:45,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:28:45,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106215756] [2020-10-13 13:28:45,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:28:45,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:45,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:28:45,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:28:45,698 INFO L87 Difference]: Start difference. First operand 1430 states and 1973 transitions. Second operand 13 states. [2020-10-13 13:28:45,919 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-13 13:28:49,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:49,128 INFO L93 Difference]: Finished difference Result 4090 states and 5687 transitions. [2020-10-13 13:28:49,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 13:28:49,133 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 130 [2020-10-13 13:28:49,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:49,148 INFO L225 Difference]: With dead ends: 4090 [2020-10-13 13:28:49,148 INFO L226 Difference]: Without dead ends: 2728 [2020-10-13 13:28:49,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2020-10-13 13:28:49,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2728 states. [2020-10-13 13:28:49,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2728 to 2694. [2020-10-13 13:28:49,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2694 states. [2020-10-13 13:28:49,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2694 states to 2694 states and 3717 transitions. [2020-10-13 13:28:49,410 INFO L78 Accepts]: Start accepts. Automaton has 2694 states and 3717 transitions. Word has length 130 [2020-10-13 13:28:49,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:49,411 INFO L479 AbstractCegarLoop]: Abstraction has 2694 states and 3717 transitions. [2020-10-13 13:28:49,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:28:49,411 INFO L276 IsEmpty]: Start isEmpty. Operand 2694 states and 3717 transitions. [2020-10-13 13:28:49,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-13 13:28:49,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:49,413 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:28:49,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:28:49,413 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:49,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:49,414 INFO L82 PathProgramCache]: Analyzing trace with hash 590154474, now seen corresponding path program 1 times [2020-10-13 13:28:49,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:49,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652812482] [2020-10-13 13:28:49,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:49,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:49,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:51,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:51,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-13 13:28:51,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:28:51,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1874 [2020-10-13 13:28:51,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:51,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:51,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-13 13:28:51,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-13 13:28:51,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:51,521 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-13 13:28:51,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:51,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:51,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:51,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:51,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:51,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:51,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:28:51,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:51,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:51,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:51,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:51,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:51,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:51,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:51,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:51,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:51,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 13:28:51,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:51,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 13:28:51,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:51,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:51,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:51,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:28:51,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:51,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:28:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:51,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:51,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:51,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:51,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:51,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:28:51,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:51,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:51,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:51,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:28:51,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:51,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-13 13:28:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:51,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:51,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:51,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:51,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:51,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:51,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:51,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:51,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:51,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:51,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:51,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 13:28:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:51,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:51,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:51,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:51,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:51,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:51,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:51,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:51,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:51,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:51,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:51,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-13 13:28:51,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:51,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:51,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:51,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:51,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:51,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:51,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:51,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:51,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:51,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:51,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:51,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:28:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:51,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:51,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:51,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:51,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:51,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:51,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:51,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:51,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:51,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:51,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:51,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:28:51,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:51,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:51,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:51,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:51,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:51,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:51,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:51,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:51,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:51,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:51,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:51,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 13:28:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:51,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:51,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:51,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:51,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:51,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:51,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:51,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:51,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:51,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:51,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:51,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:28:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:51,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:51,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:51,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:51,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:51,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:51,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:51,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:51,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:51,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:28:51,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:51,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-13 13:28:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:51,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:51,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:51,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:51,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:51,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:51,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:51,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:51,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:28:51,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:51,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:51,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:28:51,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652812482] [2020-10-13 13:28:51,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:51,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:28:51,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569489394] [2020-10-13 13:28:51,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:28:51,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:51,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:28:51,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:28:51,854 INFO L87 Difference]: Start difference. First operand 2694 states and 3717 transitions. Second operand 13 states. [2020-10-13 13:28:52,079 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-13 13:28:55,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:55,309 INFO L93 Difference]: Finished difference Result 7818 states and 10823 transitions. [2020-10-13 13:28:55,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 13:28:55,310 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 130 [2020-10-13 13:28:55,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:55,336 INFO L225 Difference]: With dead ends: 7818 [2020-10-13 13:28:55,336 INFO L226 Difference]: Without dead ends: 5192 [2020-10-13 13:28:55,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2020-10-13 13:28:55,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5192 states. [2020-10-13 13:28:55,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5192 to 5126. [2020-10-13 13:28:55,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5126 states. [2020-10-13 13:28:55,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5126 states to 5126 states and 7045 transitions. [2020-10-13 13:28:55,807 INFO L78 Accepts]: Start accepts. Automaton has 5126 states and 7045 transitions. Word has length 130 [2020-10-13 13:28:55,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:55,808 INFO L479 AbstractCegarLoop]: Abstraction has 5126 states and 7045 transitions. [2020-10-13 13:28:55,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:28:55,808 INFO L276 IsEmpty]: Start isEmpty. Operand 5126 states and 7045 transitions. [2020-10-13 13:28:55,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-13 13:28:55,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:55,810 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:28:55,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:28:55,810 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:55,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:55,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1004130208, now seen corresponding path program 1 times [2020-10-13 13:28:55,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:55,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354319719] [2020-10-13 13:28:55,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:55,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:55,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:57,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:57,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-13 13:28:57,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:57,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1381 [2020-10-13 13:28:57,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:57,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 13:28:57,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:28:57,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-13 13:28:57,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:57,438 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-13 13:28:57,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:57,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:57,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:57,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:57,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:57,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:28:57,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:57,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:57,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:57,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:57,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:57,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:57,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:57,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:57,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 13:28:57,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:57,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 13:28:57,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:57,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 13:28:57,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:57,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:28:57,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:57,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:28:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:57,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:57,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:57,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:57,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:57,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:57,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:57,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:57,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:57,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:28:57,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:57,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-13 13:28:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:57,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:57,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:57,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:57,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:57,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:28:57,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:57,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:57,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:57,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:28:57,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:57,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 13:28:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:57,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:57,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:57,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:57,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:57,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:28:57,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:57,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:57,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:57,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:28:57,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:57,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-13 13:28:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:57,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:57,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:57,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:57,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:57,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:28:57,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:57,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:57,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:57,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:28:57,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:57,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:28:57,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:57,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:57,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:57,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:57,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:57,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:28:57,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:57,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:57,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:57,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:28:57,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:57,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:28:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:57,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:57,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:57,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:57,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:57,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:28:57,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:57,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:57,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:57,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:28:57,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:58,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 13:28:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:58,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:58,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:58,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:58,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:58,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:28:58,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:58,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:58,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:58,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:28:58,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:58,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:28:58,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:58,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:58,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:58,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:58,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:58,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:28:58,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:58,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:58,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:58,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:28:58,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:58,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-13 13:28:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:58,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:58,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:58,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:58,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:58,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:58,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:58,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:58,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:28:58,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:28:58,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:58,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:28:58,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354319719] [2020-10-13 13:28:58,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:58,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-13 13:28:58,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94507011] [2020-10-13 13:28:58,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-13 13:28:58,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:58,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-13 13:28:58,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2020-10-13 13:28:58,189 INFO L87 Difference]: Start difference. First operand 5126 states and 7045 transitions. Second operand 25 states. [2020-10-13 13:28:58,468 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-13 13:28:58,683 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-13 13:28:58,880 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-13 13:28:59,085 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-13 13:28:59,297 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-13 13:28:59,509 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-13 13:28:59,740 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-13 13:29:00,440 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-13 13:29:00,740 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 13:29:01,037 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-13 13:29:01,339 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-13 13:29:01,921 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-13 13:29:02,321 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-13 13:29:09,084 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 13:29:10,658 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-13 13:29:10,879 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:29:11,095 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-13 13:29:11,301 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-13 13:29:11,501 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-13 13:29:11,698 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-13 13:29:13,605 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 13:29:16,069 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-13 13:29:16,251 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 13:29:18,739 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-13 13:29:18,919 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-13 13:29:19,355 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:29:19,703 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-13 13:29:20,043 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 13:29:20,200 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 13:29:20,370 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-13 13:29:21,317 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-13 13:29:21,456 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 13:29:23,576 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-13 13:29:23,815 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 13:29:24,724 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-13 13:29:25,832 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-13 13:29:25,976 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-13 13:29:26,128 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 13:29:26,797 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 13:29:27,332 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-13 13:29:27,972 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 13:29:28,831 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-13 13:29:29,101 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-13 13:29:35,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:29:35,785 INFO L93 Difference]: Finished difference Result 97444 states and 149716 transitions. [2020-10-13 13:29:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 188 states. [2020-10-13 13:29:35,785 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 130 [2020-10-13 13:29:35,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:29:36,370 INFO L225 Difference]: With dead ends: 97444 [2020-10-13 13:29:36,371 INFO L226 Difference]: Without dead ends: 92386 [2020-10-13 13:29:36,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15517 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=6574, Invalid=33226, Unknown=0, NotChecked=0, Total=39800 [2020-10-13 13:29:36,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92386 states. [2020-10-13 13:29:43,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92386 to 77574. [2020-10-13 13:29:43,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77574 states. [2020-10-13 13:29:43,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77574 states to 77574 states and 107205 transitions. [2020-10-13 13:29:43,280 INFO L78 Accepts]: Start accepts. Automaton has 77574 states and 107205 transitions. Word has length 130 [2020-10-13 13:29:43,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:29:43,281 INFO L479 AbstractCegarLoop]: Abstraction has 77574 states and 107205 transitions. [2020-10-13 13:29:43,281 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-13 13:29:43,281 INFO L276 IsEmpty]: Start isEmpty. Operand 77574 states and 107205 transitions. [2020-10-13 13:29:43,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-13 13:29:43,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:29:43,283 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:29:43,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 13:29:43,283 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:29:43,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:29:43,284 INFO L82 PathProgramCache]: Analyzing trace with hash -740027472, now seen corresponding path program 1 times [2020-10-13 13:29:43,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:29:43,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1856279738] [2020-10-13 13:29:43,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:29:43,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:43,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:43,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:43,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:43,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:43,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 13:29:43,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:29:43,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 613 [2020-10-13 13:29:43,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:43,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:43,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 148 [2020-10-13 13:29:43,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:29:43,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:44,127 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-13 13:29:44,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:29:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:44,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:44,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:44,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:29:44,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:44,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:29:44,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:44,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:44,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:44,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:44,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:44,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:29:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:44,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:44,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:44,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 13:29:44,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:44,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:29:44,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:44,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:44,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:44,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:44,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:44,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:29:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:44,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:44,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:44,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:29:44,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:44,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:29:44,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:44,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:44,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:44,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:44,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:44,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-13 13:29:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:44,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:44,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:44,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:44,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:44,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:29:44,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:44,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:44,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:44,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:44,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:44,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 13:29:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:44,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:44,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:44,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:44,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:44,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:29:44,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:44,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:44,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:44,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:44,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:44,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-13 13:29:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:44,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:44,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:44,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:44,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:44,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:44,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:44,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:44,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:44,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:44,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:44,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:29:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:44,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:44,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:44,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:44,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:44,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:29:44,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:44,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:44,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:44,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:44,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:44,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:29:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:44,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:44,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:44,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:44,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:44,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:29:44,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:44,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:44,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:44,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:44,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:44,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 13:29:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:44,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:44,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:44,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:44,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:44,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:29:44,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:44,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:44,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:44,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:44,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:44,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:29:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:44,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:44,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:44,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:44,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:44,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:29:44,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:44,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:44,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:44,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:44,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:44,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-13 13:29:44,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:44,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:44,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:44,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:29:44,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:44,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:29:44,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:44,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:44,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 13:29:44,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:29:44,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:44,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:29:44,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1856279738] [2020-10-13 13:29:44,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:29:44,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:29:44,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71955242] [2020-10-13 13:29:44,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:29:44,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:29:44,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:29:44,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:29:44,373 INFO L87 Difference]: Start difference. First operand 77574 states and 107205 transitions. Second operand 11 states. [2020-10-13 13:29:47,191 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-13 13:29:57,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:29:57,084 INFO L93 Difference]: Finished difference Result 228234 states and 315911 transitions. [2020-10-13 13:29:57,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 13:29:57,085 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 132 [2020-10-13 13:29:57,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:29:57,667 INFO L225 Difference]: With dead ends: 228234 [2020-10-13 13:29:57,678 INFO L226 Difference]: Without dead ends: 150728 [2020-10-13 13:29:57,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=184, Invalid=466, Unknown=0, NotChecked=0, Total=650 [2020-10-13 13:29:58,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150728 states. [2020-10-13 13:30:08,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150728 to 147846. [2020-10-13 13:30:08,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147846 states. [2020-10-13 13:30:08,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147846 states to 147846 states and 202821 transitions. [2020-10-13 13:30:08,900 INFO L78 Accepts]: Start accepts. Automaton has 147846 states and 202821 transitions. Word has length 132 [2020-10-13 13:30:08,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:30:08,901 INFO L479 AbstractCegarLoop]: Abstraction has 147846 states and 202821 transitions. [2020-10-13 13:30:08,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:30:08,901 INFO L276 IsEmpty]: Start isEmpty. Operand 147846 states and 202821 transitions. [2020-10-13 13:30:08,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-13 13:30:08,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:30:08,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:30:08,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 13:30:08,903 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:30:08,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:30:08,903 INFO L82 PathProgramCache]: Analyzing trace with hash -2027729928, now seen corresponding path program 1 times [2020-10-13 13:30:08,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:30:08,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270546284] [2020-10-13 13:30:08,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:30:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:08,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:09,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:09,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 13:30:09,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:09,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 987 [2020-10-13 13:30:09,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:09,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 13:30:09,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:30:09,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-13 13:30:09,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:30:10,133 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-13 13:30:10,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:30:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:10,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:10,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:10,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:30:10,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:10,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:30:10,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:10,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:30:10,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:30:10,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:30:10,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:10,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:30:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:10,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:10,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:10,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 13:30:10,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:10,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 13:30:10,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:10,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 13:30:10,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:30:10,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:30:10,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:10,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:30:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:10,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:10,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:10,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:30:10,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:10,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:30:10,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:10,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:30:10,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:30:10,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:30:10,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:10,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-13 13:30:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:10,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:10,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:10,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:10,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:10,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:30:10,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:10,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:30:10,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:30:10,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:30:10,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:10,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 13:30:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:10,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:10,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:10,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:10,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:10,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:30:10,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:10,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:30:10,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:30:10,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:30:10,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:10,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-13 13:30:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:10,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:10,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:10,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:10,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:10,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:30:10,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:10,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:30:10,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:30:10,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:30:10,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:10,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:30:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:10,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:10,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:10,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:10,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:10,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:30:10,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:10,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:30:10,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:30:10,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:30:10,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:10,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:30:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:10,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:10,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:10,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:10,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:10,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:30:10,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:10,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:30:10,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:30:10,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:30:10,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:10,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 13:30:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:10,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:10,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:10,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:10,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:10,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:30:10,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:10,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:30:10,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:30:10,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:30:10,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:10,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:30:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:10,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:10,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:10,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:10,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:10,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:30:10,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:10,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:30:10,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:30:10,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:30:10,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:10,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-13 13:30:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:10,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:10,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:10,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:30:10,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:10,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:30:10,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:10,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:30:10,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:30:10,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:30:10,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:10,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:30:10,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270546284] [2020-10-13 13:30:10,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:30:10,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-13 13:30:10,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253731461] [2020-10-13 13:30:10,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-13 13:30:10,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:30:10,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-13 13:30:10,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=502, Unknown=0, NotChecked=0, Total=600 [2020-10-13 13:30:10,788 INFO L87 Difference]: Start difference. First operand 147846 states and 202821 transitions. Second operand 25 states. [2020-10-13 13:30:11,035 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-13 13:30:11,249 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-13 13:30:11,446 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-13 13:30:11,652 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-13 13:30:11,862 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-13 13:30:12,078 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-13 13:30:12,295 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-13 13:30:15,295 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-13 13:30:15,491 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-13 13:30:15,820 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-13 13:30:16,154 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 13:30:16,345 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-13 13:30:16,689 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-13 13:30:16,847 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 13:30:17,196 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-13 13:30:18,802 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-13 13:30:19,824 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:30:20,092 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:30:20,221 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-13 13:30:21,390 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-13 13:30:21,779 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:30:21,916 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:30:22,048 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-13 13:30:23,574 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:30:24,142 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-13 13:30:24,284 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:30:24,427 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 13:30:24,564 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-13 13:30:24,728 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-13 13:30:26,026 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 13:30:26,462 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:30:27,190 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:30:27,329 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 13:30:27,469 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-13 13:30:27,929 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 13:30:30,055 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-13 13:30:36,438 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-13 13:30:36,656 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 13:30:36,886 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-13 13:30:39,432 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-13 13:30:39,569 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:30:39,702 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 13:30:42,514 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-13 13:30:42,658 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:30:42,796 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 13:30:42,932 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-13 13:30:43,822 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 13:30:45,570 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 13:30:45,710 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-13 13:30:45,847 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 13:30:47,041 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:30:47,334 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-13 13:30:48,634 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 13:30:48,769 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-13 13:30:49,870 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:30:51,245 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 13:30:51,386 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:30:52,675 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-13 13:30:53,840 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-13 13:30:54,671 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 110