/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=BIGGEST --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_floodmax.3.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:35:11,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:35:11,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:35:11,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:35:11,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:35:11,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:35:11,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:35:11,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:35:11,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:35:11,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:35:11,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:35:11,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:35:11,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:35:11,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:35:11,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:35:11,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:35:11,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:35:11,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:35:11,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:35:11,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:35:11,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:35:11,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:35:11,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:35:11,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:35:11,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:35:11,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:35:11,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:35:11,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:35:11,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:35:11,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:35:11,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:35:11,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:35:11,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:35:11,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:35:11,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:35:11,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:35:11,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:35:11,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:35:11,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:35:11,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:35:11,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:35:11,643 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 [2020-10-12 18:35:11,684 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:35:11,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:35:11,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:35:11,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:35:11,686 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:35:11,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:35:11,687 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:35:11,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:35:11,687 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:35:11,687 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:35:11,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:35:11,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:35:11,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:35:11,689 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:35:11,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:35:11,690 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:35:11,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:35:11,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:35:11,690 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:35:11,690 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:35:11,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:35:11,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:35:11,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:35:11,691 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:35:11,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:35:11,692 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:35:11,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:35:11,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:35:11,692 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:35:11,692 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:35:11,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:35:11,975 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:35:11,978 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:35:11,980 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:35:11,980 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:35:11,981 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.ufo.BOUNDED-6.pals.c [2020-10-12 18:35:12,035 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c8b23633/8c54af6a6f7a4656ab790e28a8976d1e/FLAG93eb0b16b [2020-10-12 18:35:12,555 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:35:12,555 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.ufo.BOUNDED-6.pals.c [2020-10-12 18:35:12,566 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c8b23633/8c54af6a6f7a4656ab790e28a8976d1e/FLAG93eb0b16b [2020-10-12 18:35:12,874 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c8b23633/8c54af6a6f7a4656ab790e28a8976d1e [2020-10-12 18:35:12,883 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:35:12,884 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:35:12,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:35:12,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:35:12,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:35:12,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:35:12" (1/1) ... [2020-10-12 18:35:12,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:35:12, skipping insertion in model container [2020-10-12 18:35:12,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:35:12" (1/1) ... [2020-10-12 18:35:12,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:35:12,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:35:13,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:35:13,223 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:35:13,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:35:13,405 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:35:13,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:35:13 WrapperNode [2020-10-12 18:35:13,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:35:13,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:35:13,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:35:13,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:35:13,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:35:13" (1/1) ... [2020-10-12 18:35:13,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:35:13" (1/1) ... [2020-10-12 18:35:13,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:35:13" (1/1) ... [2020-10-12 18:35:13,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:35:13" (1/1) ... [2020-10-12 18:35:13,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:35:13" (1/1) ... [2020-10-12 18:35:13,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:35:13" (1/1) ... [2020-10-12 18:35:13,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:35:13" (1/1) ... [2020-10-12 18:35:13,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:35:13,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:35:13,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:35:13,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:35:13,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:35:13" (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 [2020-10-12 18:35:13,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:35:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:35:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:35:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:35:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:35:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:35:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:35:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:35:13,562 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:35:13,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:35:13,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:35:13,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:35:13,562 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:35:13,562 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:35:13,563 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:35:13,563 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:35:13,564 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:35:13,564 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:35:13,564 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:35:13,564 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:35:13,565 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:35:13,565 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:35:13,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:35:13,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:35:14,373 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:35:14,373 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:35:14,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:35:14 BoogieIcfgContainer [2020-10-12 18:35:14,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:35:14,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:35:14,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:35:14,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:35:14,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:35:12" (1/3) ... [2020-10-12 18:35:14,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10f0ce0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:35:14, skipping insertion in model container [2020-10-12 18:35:14,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:35:13" (2/3) ... [2020-10-12 18:35:14,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10f0ce0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:35:14, skipping insertion in model container [2020-10-12 18:35:14,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:35:14" (3/3) ... [2020-10-12 18:35:14,389 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.ufo.BOUNDED-6.pals.c [2020-10-12 18:35:14,399 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:35:14,407 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:35:14,421 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:35:14,444 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:35:14,444 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:35:14,444 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:35:14,444 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:35:14,445 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:35:14,445 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:35:14,445 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:35:14,445 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:35:14,466 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2020-10-12 18:35:14,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-12 18:35:14,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:35:14,478 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] [2020-10-12 18:35:14,479 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:35:14,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:35:14,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1364421405, now seen corresponding path program 1 times [2020-10-12 18:35:14,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:35:14,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755352180] [2020-10-12 18:35:14,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:35:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:14,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:15,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:15,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 18:35:15,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:15,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-10-12 18:35:15,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:15,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:15,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-12 18:35:15,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:15,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:35:15,337 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:35:15,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:35:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:15,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:15,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:15,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:35:15,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:15,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 18:35:15,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:15,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:15,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:15,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:15,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:15,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:35:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:15,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:15,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:15,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 18:35:15,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:15,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:35:15,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:15,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:15,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:15,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:15,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:15,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 18:35:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:15,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:15,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:15,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:15,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:15,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:35:15,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:15,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:15,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:35:15,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:15,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:35:15,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 18:35:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:15,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:15,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:15,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:15,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:15,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:35:15,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:15,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:15,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:35:15,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:15,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:35:15,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-12 18:35:15,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:15,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:15,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:15,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:15,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:15,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:35:15,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:15,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:15,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:35:15,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:15,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:35:15,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 18:35:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:15,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:15,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:15,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:15,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:15,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:35:15,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:15,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:15,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:35:15,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:15,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:35:15,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:35:15,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755352180] [2020-10-12 18:35:15,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:35:15,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 18:35:15,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462292483] [2020-10-12 18:35:15,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 18:35:15,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:35:15,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 18:35:15,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 18:35:15,612 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 6 states. [2020-10-12 18:35:16,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:35:16,651 INFO L93 Difference]: Finished difference Result 258 states and 411 transitions. [2020-10-12 18:35:16,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 18:35:16,653 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2020-10-12 18:35:16,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:35:16,667 INFO L225 Difference]: With dead ends: 258 [2020-10-12 18:35:16,667 INFO L226 Difference]: Without dead ends: 162 [2020-10-12 18:35:16,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:35:16,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-12 18:35:16,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 150. [2020-10-12 18:35:16,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-12 18:35:16,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 243 transitions. [2020-10-12 18:35:16,730 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 243 transitions. Word has length 58 [2020-10-12 18:35:16,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:35:16,731 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 243 transitions. [2020-10-12 18:35:16,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 18:35:16,731 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 243 transitions. [2020-10-12 18:35:16,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-12 18:35:16,735 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:35:16,735 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] [2020-10-12 18:35:16,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:35:16,736 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:35:16,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:35:16,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1292034847, now seen corresponding path program 1 times [2020-10-12 18:35:16,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:35:16,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [250966510] [2020-10-12 18:35:16,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:35:16,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:16,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:17,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:17,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 18:35:17,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:17,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 635 [2020-10-12 18:35:17,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:17,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:35:17,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-12 18:35:17,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:35:17,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:17,614 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:35:17,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:35:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:17,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:17,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:17,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:35:17,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:17,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:35:17,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:17,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:17,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:17,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:17,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:17,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:35:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:17,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:17,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:17,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 18:35:17,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:17,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 18:35:17,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:17,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:17,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:17,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 18:35:17,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:17,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 18:35:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:17,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:17,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:17,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:17,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:17,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:35:17,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:17,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:17,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:35:17,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:17,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:17,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 18:35:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:17,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:17,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:17,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:17,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:17,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:35:17,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:17,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:17,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:35:17,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:17,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:17,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-12 18:35:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:17,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:17,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:17,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:17,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:17,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:35:17,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:17,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:35:17,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:17,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:35:17,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 18:35:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:17,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:17,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:17,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:17,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:17,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:35:17,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:17,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:17,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:35:17,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:17,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:17,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:35:17,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [250966510] [2020-10-12 18:35:17,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:35:17,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 18:35:17,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423811762] [2020-10-12 18:35:17,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:35:17,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:35:17,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:35:17,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:35:17,866 INFO L87 Difference]: Start difference. First operand 150 states and 243 transitions. Second operand 10 states. [2020-10-12 18:35:18,303 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:35:18,470 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:35:19,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:35:19,666 INFO L93 Difference]: Finished difference Result 262 states and 414 transitions. [2020-10-12 18:35:19,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 18:35:19,667 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2020-10-12 18:35:19,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:35:19,671 INFO L225 Difference]: With dead ends: 262 [2020-10-12 18:35:19,671 INFO L226 Difference]: Without dead ends: 171 [2020-10-12 18:35:19,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:35:19,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-12 18:35:19,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 150. [2020-10-12 18:35:19,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-12 18:35:19,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 216 transitions. [2020-10-12 18:35:19,697 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 216 transitions. Word has length 58 [2020-10-12 18:35:19,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:35:19,697 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 216 transitions. [2020-10-12 18:35:19,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:35:19,698 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 216 transitions. [2020-10-12 18:35:19,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-12 18:35:19,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:35:19,701 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] [2020-10-12 18:35:19,701 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:35:19,701 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:35:19,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:35:19,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1402954698, now seen corresponding path program 1 times [2020-10-12 18:35:19,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:35:19,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048396275] [2020-10-12 18:35:19,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:35:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:19,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:19,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:19,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:21,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:24,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:24,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 18:35:24,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:35:24,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 18:35:24,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:24,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:35:24,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:35:24,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 18:35:24,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:35:24,989 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:35:24,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:35:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:24,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:25,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:25,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:35:25,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:25,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:35:25,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:25,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:25,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:25,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:25,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:35:25,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:35:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:25,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:25,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:25,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:35:25,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:25,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 18:35:25,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:25,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:25,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:25,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:35:25,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:35:25,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:35:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:25,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:25,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:25,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:25,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:25,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:35:25,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:25,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:25,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:25,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:35:25,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:25,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:35:25,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:25,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:25,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:25,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:25,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:25,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:35:25,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:25,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:25,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:25,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:35:25,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:25,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:35:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:25,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:25,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:25,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:25,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:25,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:35:25,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:25,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:25,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:25,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:35:25,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:35:25,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:35:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:25,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:25,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:25,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:25,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:25,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:35:25,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:25,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:35:25,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:35:25,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:35:25,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:25,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:35:25,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048396275] [2020-10-12 18:35:25,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:35:25,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:35:25,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503854299] [2020-10-12 18:35:25,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:35:25,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:35:25,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:35:25,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:35:25,422 INFO L87 Difference]: Start difference. First operand 150 states and 216 transitions. Second operand 13 states. [2020-10-12 18:35:25,623 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:35:26,210 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:35:26,349 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:35:28,137 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:35:28,303 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:35:28,449 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:35:30,972 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2020-10-12 18:35:32,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:35:32,431 INFO L93 Difference]: Finished difference Result 892 states and 1397 transitions. [2020-10-12 18:35:32,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-10-12 18:35:32,431 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 84 [2020-10-12 18:35:32,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:35:32,447 INFO L225 Difference]: With dead ends: 892 [2020-10-12 18:35:32,448 INFO L226 Difference]: Without dead ends: 807 [2020-10-12 18:35:32,458 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 923 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=707, Invalid=2373, Unknown=0, NotChecked=0, Total=3080 [2020-10-12 18:35:32,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2020-10-12 18:35:32,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 639. [2020-10-12 18:35:32,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2020-10-12 18:35:32,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 977 transitions. [2020-10-12 18:35:32,622 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 977 transitions. Word has length 84 [2020-10-12 18:35:32,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:35:32,624 INFO L479 AbstractCegarLoop]: Abstraction has 639 states and 977 transitions. [2020-10-12 18:35:32,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:35:32,624 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 977 transitions. [2020-10-12 18:35:32,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-12 18:35:32,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:35:32,634 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] [2020-10-12 18:35:32,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:35:32,636 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:35:32,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:35:32,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1236714189, now seen corresponding path program 1 times [2020-10-12 18:35:32,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:35:32,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568553185] [2020-10-12 18:35:32,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:35:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:32,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:32,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:32,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:33,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:33,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:37,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:37,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 18:35:37,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:35:37,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 18:35:37,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:37,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:35:37,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 18:35:37,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 18:35:37,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:37,882 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:35:37,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:35:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:37,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:37,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:37,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:35:37,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:37,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:35:37,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:37,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:37,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:37,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:37,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:35:37,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:35:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:37,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:37,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:37,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:35:37,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:37,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 18:35:37,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:37,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:37,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:37,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 18:35:37,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:38,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:35:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:38,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:38,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:38,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:38,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:38,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:35:38,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:38,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:38,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:38,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:35:38,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:38,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:35:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:38,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:38,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:38,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:38,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:38,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:35:38,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:38,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:38,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:38,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:35:38,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:38,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:35:38,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:38,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:38,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:38,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:38,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:38,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:35:38,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:38,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:38,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:38,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:35:38,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:38,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:35:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:38,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:38,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:38,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:35:38,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:38,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:35:38,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:38,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:35:38,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:35:38,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:35:38,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:38,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:35:38,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568553185] [2020-10-12 18:35:38,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:35:38,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:35:38,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631419070] [2020-10-12 18:35:38,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:35:38,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:35:38,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:35:38,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:35:38,235 INFO L87 Difference]: Start difference. First operand 639 states and 977 transitions. Second operand 14 states. [2020-10-12 18:35:38,474 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:35:38,989 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:35:39,163 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:35:39,317 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:35:40,938 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:35:41,119 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:35:41,315 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:35:41,509 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-12 18:35:44,679 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:35:44,905 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:35:47,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:35:47,814 INFO L93 Difference]: Finished difference Result 3370 states and 5287 transitions. [2020-10-12 18:35:47,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-10-12 18:35:47,815 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 85 [2020-10-12 18:35:47,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:35:47,838 INFO L225 Difference]: With dead ends: 3370 [2020-10-12 18:35:47,838 INFO L226 Difference]: Without dead ends: 2796 [2020-10-12 18:35:47,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1522 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=950, Invalid=3742, Unknown=0, NotChecked=0, Total=4692 [2020-10-12 18:35:47,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2796 states. [2020-10-12 18:35:48,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2796 to 1960. [2020-10-12 18:35:48,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1960 states. [2020-10-12 18:35:48,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1960 states to 1960 states and 3077 transitions. [2020-10-12 18:35:48,079 INFO L78 Accepts]: Start accepts. Automaton has 1960 states and 3077 transitions. Word has length 85 [2020-10-12 18:35:48,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:35:48,081 INFO L479 AbstractCegarLoop]: Abstraction has 1960 states and 3077 transitions. [2020-10-12 18:35:48,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:35:48,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1960 states and 3077 transitions. [2020-10-12 18:35:48,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-12 18:35:48,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:35:48,084 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] [2020-10-12 18:35:48,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:35:48,085 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:35:48,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:35:48,085 INFO L82 PathProgramCache]: Analyzing trace with hash -429910643, now seen corresponding path program 1 times [2020-10-12 18:35:48,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:35:48,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1176845518] [2020-10-12 18:35:48,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:35:48,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:48,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:48,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:48,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:48,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:48,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:53,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:53,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-12 18:35:53,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:35:53,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-12 18:35:53,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:35:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:35:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-12 18:35:53,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:53,329 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:35:53,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:35:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:53,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:53,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:53,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:35:53,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:53,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:35:53,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:53,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:53,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:53,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:53,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:53,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:35:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:53,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:53,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:53,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:35:53,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:53,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 18:35:53,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:53,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:53,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:53,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 18:35:53,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:53,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:35:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:53,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:53,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:53,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:53,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:53,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:35:53,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:53,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:53,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:53,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:35:53,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:53,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:35:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:53,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:53,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:53,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:53,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:53,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:35:53,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:53,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:53,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:53,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:35:53,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:53,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:35:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:53,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:53,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:53,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:53,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:53,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:35:53,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:53,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:53,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:53,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:35:53,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:53,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:35:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:53,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:53,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:53,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:35:53,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:53,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:35:53,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:53,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:35:53,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:35:53,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:35:53,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:53,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:35:53,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1176845518] [2020-10-12 18:35:53,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:35:53,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:35:53,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215625626] [2020-10-12 18:35:53,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:35:53,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:35:53,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:35:53,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:35:53,671 INFO L87 Difference]: Start difference. First operand 1960 states and 3077 transitions. Second operand 14 states. [2020-10-12 18:35:53,872 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:35:54,329 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:35:54,485 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:35:54,652 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:35:55,836 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:35:56,851 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:35:57,022 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-12 18:35:57,169 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:35:57,391 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:35:57,560 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:36:00,355 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2020-10-12 18:36:02,619 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:36:02,866 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:36:05,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:36:05,840 INFO L93 Difference]: Finished difference Result 6198 states and 9936 transitions. [2020-10-12 18:36:05,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2020-10-12 18:36:05,841 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 86 [2020-10-12 18:36:05,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:36:05,873 INFO L225 Difference]: With dead ends: 6198 [2020-10-12 18:36:05,873 INFO L226 Difference]: Without dead ends: 4326 [2020-10-12 18:36:05,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2982 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=1539, Invalid=6471, Unknown=0, NotChecked=0, Total=8010 [2020-10-12 18:36:05,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4326 states. [2020-10-12 18:36:06,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4326 to 3304. [2020-10-12 18:36:06,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3304 states. [2020-10-12 18:36:06,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3304 states to 3304 states and 5223 transitions. [2020-10-12 18:36:06,272 INFO L78 Accepts]: Start accepts. Automaton has 3304 states and 5223 transitions. Word has length 86 [2020-10-12 18:36:06,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:36:06,273 INFO L479 AbstractCegarLoop]: Abstraction has 3304 states and 5223 transitions. [2020-10-12 18:36:06,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:36:06,273 INFO L276 IsEmpty]: Start isEmpty. Operand 3304 states and 5223 transitions. [2020-10-12 18:36:06,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-12 18:36:06,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:36:06,280 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] [2020-10-12 18:36:06,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:36:06,281 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:36:06,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:36:06,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1240489430, now seen corresponding path program 1 times [2020-10-12 18:36:06,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:36:06,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865564439] [2020-10-12 18:36:06,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:36:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:06,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:06,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:06,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:06,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:07,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:11,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:11,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 18:36:11,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:36:11,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:36:11,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:11,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:36:11,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:36:11,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-12 18:36:11,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:11,554 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:36:11,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:36:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:11,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:11,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:11,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:36:11,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:11,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:36:11,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:11,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:11,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:11,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:11,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:11,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:36:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:11,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:11,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:11,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:36:11,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:11,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 18:36:11,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:11,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:11,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:11,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 18:36:11,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:11,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:36:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:11,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:11,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:11,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:11,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:11,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:36:11,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:11,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:11,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:11,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:11,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:11,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:36:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:11,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:11,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:11,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:11,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:11,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:36:11,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:11,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:11,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:11,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:11,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:11,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:36:11,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:11,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:11,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:11,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:11,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:11,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:36:11,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:11,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:11,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:11,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:11,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:11,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:36:11,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:11,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:11,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:11,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:36:11,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:11,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:36:11,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:11,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:36:11,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:36:11,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:36:11,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:11,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:36:11,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865564439] [2020-10-12 18:36:11,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:36:11,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:36:11,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726793387] [2020-10-12 18:36:11,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:36:11,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:36:11,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:36:11,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:36:11,870 INFO L87 Difference]: Start difference. First operand 3304 states and 5223 transitions. Second operand 14 states. [2020-10-12 18:36:12,064 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-12 18:36:12,544 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:36:12,692 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:36:12,864 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:36:14,584 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:36:14,749 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:36:15,003 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:36:15,177 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:36:19,362 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:36:19,534 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:36:20,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:36:20,762 INFO L93 Difference]: Finished difference Result 13033 states and 20585 transitions. [2020-10-12 18:36:20,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-10-12 18:36:20,762 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 87 [2020-10-12 18:36:20,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:36:20,819 INFO L225 Difference]: With dead ends: 13033 [2020-10-12 18:36:20,819 INFO L226 Difference]: Without dead ends: 9817 [2020-10-12 18:36:20,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1458 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=957, Invalid=3735, Unknown=0, NotChecked=0, Total=4692 [2020-10-12 18:36:20,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9817 states. [2020-10-12 18:36:21,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9817 to 7353. [2020-10-12 18:36:21,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7353 states. [2020-10-12 18:36:21,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7353 states to 7353 states and 11699 transitions. [2020-10-12 18:36:21,367 INFO L78 Accepts]: Start accepts. Automaton has 7353 states and 11699 transitions. Word has length 87 [2020-10-12 18:36:21,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:36:21,368 INFO L479 AbstractCegarLoop]: Abstraction has 7353 states and 11699 transitions. [2020-10-12 18:36:21,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:36:21,368 INFO L276 IsEmpty]: Start isEmpty. Operand 7353 states and 11699 transitions. [2020-10-12 18:36:21,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-12 18:36:21,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:36:21,371 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] [2020-10-12 18:36:21,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:36:21,371 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:36:21,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:36:21,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1025816046, now seen corresponding path program 1 times [2020-10-12 18:36:21,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:36:21,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1109702085] [2020-10-12 18:36:21,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:36:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:21,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:21,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:21,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:21,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:21,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:22,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:25,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:26,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:26,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 18:36:26,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:36:26,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 18:36:26,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:26,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:36:26,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:36:26,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-12 18:36:26,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:26,602 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:36:26,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:36:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:26,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:26,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:26,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:36:26,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:26,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:36:26,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:26,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:26,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:26,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:26,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:26,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:36:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:26,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:26,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:26,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:36:26,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:26,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 18:36:26,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:26,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:36:26,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:26,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:36:26,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:26,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:36:26,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:26,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:26,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:26,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:26,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:26,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:36:26,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:26,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:26,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:26,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:26,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:26,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:36:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:26,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:26,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:26,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:26,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:26,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:36:26,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:26,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:26,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:26,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:26,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:26,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:36:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:26,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:26,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:26,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:36:26,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:26,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:36:26,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:26,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:36:26,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:26,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:26,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:26,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:36:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:26,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:26,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:26,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:26,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:26,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:36:26,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:26,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:26,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:36:26,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:36:26,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:27,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:36:27,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1109702085] [2020-10-12 18:36:27,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:36:27,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:36:27,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111816203] [2020-10-12 18:36:27,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:36:27,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:36:27,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:36:27,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:36:27,050 INFO L87 Difference]: Start difference. First operand 7353 states and 11699 transitions. Second operand 13 states. [2020-10-12 18:36:27,496 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 150 [2020-10-12 18:36:27,983 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:36:28,147 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:36:28,860 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:36:29,650 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:36:30,324 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:36:30,718 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:36:33,514 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2020-10-12 18:36:35,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:36:35,340 INFO L93 Difference]: Finished difference Result 12996 states and 20744 transitions. [2020-10-12 18:36:35,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-12 18:36:35,341 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 87 [2020-10-12 18:36:35,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:36:35,394 INFO L225 Difference]: With dead ends: 12996 [2020-10-12 18:36:35,395 INFO L226 Difference]: Without dead ends: 8431 [2020-10-12 18:36:35,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=453, Invalid=1527, Unknown=0, NotChecked=0, Total=1980 [2020-10-12 18:36:35,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8431 states. [2020-10-12 18:36:35,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8431 to 7204. [2020-10-12 18:36:35,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7204 states. [2020-10-12 18:36:35,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7204 states to 7204 states and 11452 transitions. [2020-10-12 18:36:35,991 INFO L78 Accepts]: Start accepts. Automaton has 7204 states and 11452 transitions. Word has length 87 [2020-10-12 18:36:35,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:36:35,991 INFO L479 AbstractCegarLoop]: Abstraction has 7204 states and 11452 transitions. [2020-10-12 18:36:35,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:36:35,991 INFO L276 IsEmpty]: Start isEmpty. Operand 7204 states and 11452 transitions. [2020-10-12 18:36:35,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-12 18:36:35,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:36:35,994 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] [2020-10-12 18:36:35,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:36:35,994 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:36:35,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:36:35,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1286022490, now seen corresponding path program 1 times [2020-10-12 18:36:35,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:36:35,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [250240363] [2020-10-12 18:36:35,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:36:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:36,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:36,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:36,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:36,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:36,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:36,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:40,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:41,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:41,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 18:36:41,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:36:41,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-12 18:36:41,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:41,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:36:41,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 18:36:41,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-12 18:36:41,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:41,215 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:36:41,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:36:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:41,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:41,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:41,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:36:41,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:41,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:36:41,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:41,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:41,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:41,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:41,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:41,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:36:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:41,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:41,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:41,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:36:41,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:41,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 18:36:41,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:41,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:36:41,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:41,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:36:41,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:41,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:36:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:41,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:41,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:41,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:36:41,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:41,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:36:41,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:41,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:36:41,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:41,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:41,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:41,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 18:36:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:41,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:41,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:41,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:41,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:41,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:36:41,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:41,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:41,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:36:41,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:41,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:41,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:41,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:41,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:41,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:36:41,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:41,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:41,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:41,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:41,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:41,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:36:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:41,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:41,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:41,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:41,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:41,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:36:41,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:41,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:41,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:36:41,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:36:41,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:41,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:36:41,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [250240363] [2020-10-12 18:36:41,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:36:41,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:36:41,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129800862] [2020-10-12 18:36:41,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:36:41,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:36:41,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:36:41,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:36:41,629 INFO L87 Difference]: Start difference. First operand 7204 states and 11452 transitions. Second operand 13 states. [2020-10-12 18:36:41,914 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:36:42,586 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:36:42,817 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:36:43,220 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-12 18:36:43,941 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-12 18:36:44,128 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-12 18:36:44,282 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2020-10-12 18:36:44,631 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-10-12 18:36:44,997 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 151 [2020-10-12 18:36:45,661 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2020-10-12 18:36:45,787 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-10-12 18:36:46,192 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2020-10-12 18:36:46,335 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2020-10-12 18:36:46,751 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2020-10-12 18:36:47,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:36:47,392 INFO L93 Difference]: Finished difference Result 13276 states and 21039 transitions. [2020-10-12 18:36:47,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 18:36:47,393 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 87 [2020-10-12 18:36:47,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:36:47,430 INFO L225 Difference]: With dead ends: 13276 [2020-10-12 18:36:47,431 INFO L226 Difference]: Without dead ends: 9782 [2020-10-12 18:36:47,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=248, Invalid=744, Unknown=0, NotChecked=0, Total=992 [2020-10-12 18:36:47,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9782 states. [2020-10-12 18:36:48,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9782 to 8535. [2020-10-12 18:36:48,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8535 states. [2020-10-12 18:36:48,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8535 states to 8535 states and 13590 transitions. [2020-10-12 18:36:48,181 INFO L78 Accepts]: Start accepts. Automaton has 8535 states and 13590 transitions. Word has length 87 [2020-10-12 18:36:48,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:36:48,181 INFO L479 AbstractCegarLoop]: Abstraction has 8535 states and 13590 transitions. [2020-10-12 18:36:48,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:36:48,181 INFO L276 IsEmpty]: Start isEmpty. Operand 8535 states and 13590 transitions. [2020-10-12 18:36:48,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-12 18:36:48,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:36:48,184 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] [2020-10-12 18:36:48,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:36:48,184 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:36:48,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:36:48,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1864649431, now seen corresponding path program 1 times [2020-10-12 18:36:48,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:36:48,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2129613386] [2020-10-12 18:36:48,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:36:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:48,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:48,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:48,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:48,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:48,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:48,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:50,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:51,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:53,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-12 18:36:53,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:36:53,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 18:36:53,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:53,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:36:53,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 18:36:53,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-12 18:36:53,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:53,381 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:36:53,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:36:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:53,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:53,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:36:53,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:53,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:36:53,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:53,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:53,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:53,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:53,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:53,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:36:53,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:53,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:53,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:36:53,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:53,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 18:36:53,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:53,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:36:53,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:53,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 18:36:53,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:53,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:36:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:53,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:53,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:53,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:53,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:36:53,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:53,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:53,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:53,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:53,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:53,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:36:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:53,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:53,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:53,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:53,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:36:53,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:53,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:53,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:53,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:53,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:53,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:36:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:53,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:53,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:36:53,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:53,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:36:53,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:53,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:36:53,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:53,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:53,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:53,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:36:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:53,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:53,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:36:53,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:53,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:36:53,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:53,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:36:53,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:36:53,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:36:53,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:53,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:36:53,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2129613386] [2020-10-12 18:36:53,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:36:53,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:36:53,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043136416] [2020-10-12 18:36:53,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:36:53,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:36:53,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:36:53,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:36:53,775 INFO L87 Difference]: Start difference. First operand 8535 states and 13590 transitions. Second operand 14 states. [2020-10-12 18:36:53,999 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:36:54,628 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:36:54,805 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:36:56,184 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2020-10-12 18:36:56,775 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 150 [2020-10-12 18:36:57,140 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 152 [2020-10-12 18:36:57,296 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:36:57,476 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:36:57,635 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:36:57,872 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:36:58,165 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-12 18:36:59,194 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2020-10-12 18:37:01,095 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-12 18:37:01,577 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:37:02,852 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:37:03,448 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2020-10-12 18:37:07,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:37:07,045 INFO L93 Difference]: Finished difference Result 21772 states and 34530 transitions. [2020-10-12 18:37:07,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-10-12 18:37:07,046 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 88 [2020-10-12 18:37:07,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:37:07,121 INFO L225 Difference]: With dead ends: 21772 [2020-10-12 18:37:07,121 INFO L226 Difference]: Without dead ends: 16331 [2020-10-12 18:37:07,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2029 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=1099, Invalid=5063, Unknown=0, NotChecked=0, Total=6162 [2020-10-12 18:37:07,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16331 states. [2020-10-12 18:37:08,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16331 to 13384. [2020-10-12 18:37:08,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13384 states. [2020-10-12 18:37:08,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13384 states to 13384 states and 21300 transitions. [2020-10-12 18:37:08,088 INFO L78 Accepts]: Start accepts. Automaton has 13384 states and 21300 transitions. Word has length 88 [2020-10-12 18:37:08,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:37:08,088 INFO L479 AbstractCegarLoop]: Abstraction has 13384 states and 21300 transitions. [2020-10-12 18:37:08,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:37:08,089 INFO L276 IsEmpty]: Start isEmpty. Operand 13384 states and 21300 transitions. [2020-10-12 18:37:08,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-12 18:37:08,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:37:08,091 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] [2020-10-12 18:37:08,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:37:08,091 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:37:08,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:37:08,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1600064148, now seen corresponding path program 1 times [2020-10-12 18:37:08,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:37:08,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1174768039] [2020-10-12 18:37:08,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:37:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:08,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:08,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:08,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:08,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:08,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:08,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:11,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:11,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:13,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:13,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-12 18:37:13,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:37:13,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-12 18:37:13,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:13,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:37:13,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-12 18:37:13,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-12 18:37:13,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:13,295 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:37:13,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:37:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:13,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:13,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:13,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:37:13,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:13,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:37:13,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:13,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:13,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:13,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:13,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:13,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:37:13,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:13,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:13,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:13,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:37:13,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:13,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 18:37:13,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:13,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:37:13,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:13,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 18:37:13,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:13,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:37:13,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:13,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:13,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:13,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:13,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:13,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:37:13,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:13,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:37:13,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:37:13,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:37:13,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:13,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:37:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:13,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:13,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:13,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:37:13,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:13,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:37:13,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:13,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:37:13,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:13,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:37:13,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:13,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:37:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:13,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:13,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:13,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:13,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:13,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:37:13,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:13,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:37:13,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:37:13,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:37:13,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:13,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:37:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:13,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:13,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:13,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:37:13,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:13,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:37:13,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:13,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:37:13,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:37:13,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:37:13,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:13,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:37:13,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1174768039] [2020-10-12 18:37:13,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:37:13,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:37:13,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784866397] [2020-10-12 18:37:13,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:37:13,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:37:13,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:37:13,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:37:13,575 INFO L87 Difference]: Start difference. First operand 13384 states and 21300 transitions. Second operand 14 states. [2020-10-12 18:37:13,782 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:37:14,330 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:37:14,489 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:37:15,905 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 150 [2020-10-12 18:37:16,090 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2020-10-12 18:37:16,557 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:37:17,213 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:37:17,549 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 152 [2020-10-12 18:37:17,753 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:37:18,009 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:37:18,262 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-12 18:37:19,478 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2020-10-12 18:37:19,628 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-12 18:37:19,849 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2020-10-12 18:37:21,617 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2020-10-12 18:37:21,891 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:37:22,793 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:37:23,731 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-12 18:37:26,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:37:26,747 INFO L93 Difference]: Finished difference Result 28175 states and 44781 transitions. [2020-10-12 18:37:26,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-10-12 18:37:26,748 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 88 [2020-10-12 18:37:26,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:37:26,821 INFO L225 Difference]: With dead ends: 28175 [2020-10-12 18:37:26,822 INFO L226 Difference]: Without dead ends: 21394 [2020-10-12 18:37:26,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2015 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=1099, Invalid=5063, Unknown=0, NotChecked=0, Total=6162 [2020-10-12 18:37:26,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21394 states. [2020-10-12 18:37:27,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21394 to 17682. [2020-10-12 18:37:27,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17682 states. [2020-10-12 18:37:27,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17682 states to 17682 states and 28203 transitions. [2020-10-12 18:37:27,880 INFO L78 Accepts]: Start accepts. Automaton has 17682 states and 28203 transitions. Word has length 88 [2020-10-12 18:37:27,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:37:27,881 INFO L479 AbstractCegarLoop]: Abstraction has 17682 states and 28203 transitions. [2020-10-12 18:37:27,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:37:27,881 INFO L276 IsEmpty]: Start isEmpty. Operand 17682 states and 28203 transitions. [2020-10-12 18:37:27,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-12 18:37:27,883 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:37:27,883 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] [2020-10-12 18:37:27,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 18:37:27,884 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:37:27,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:37:27,884 INFO L82 PathProgramCache]: Analyzing trace with hash -520579643, now seen corresponding path program 1 times [2020-10-12 18:37:27,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:37:27,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1124015443] [2020-10-12 18:37:27,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:37:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:27,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:27,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:27,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:27,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:28,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:28,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:28,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:32,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:32,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-12 18:37:32,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:37:32,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 18:37:32,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:32,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:37:32,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-12 18:37:32,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:37:32,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:33,068 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:37:33,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:37:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:33,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:33,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:33,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:37:33,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:33,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:37:33,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:33,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:33,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:33,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:33,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:33,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:37:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:33,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:33,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:33,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:37:33,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:33,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:37:33,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:33,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:33,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:33,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 18:37:33,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:33,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:37:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:33,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:33,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:33,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:37:33,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:33,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:37:33,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:33,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:37:33,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:37:33,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:37:33,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:33,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 18:37:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:33,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:33,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:33,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:33,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:33,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:37:33,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:33,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:33,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:37:33,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:33,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:33,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:37:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:33,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:33,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:33,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:33,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:33,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:37:33,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:33,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:33,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:37:33,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:33,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:33,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:37:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:33,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:33,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:33,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:37:33,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:33,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:37:33,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:33,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:33,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:37:33,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:33,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:33,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:37:33,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1124015443] [2020-10-12 18:37:33,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:37:33,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 18:37:33,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640640561] [2020-10-12 18:37:33,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:37:33,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:37:33,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:37:33,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:37:33,305 INFO L87 Difference]: Start difference. First operand 17682 states and 28203 transitions. Second operand 9 states. [2020-10-12 18:37:33,483 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:37:34,126 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-12 18:37:35,100 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:37:36,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:37:36,386 INFO L93 Difference]: Finished difference Result 42744 states and 67587 transitions. [2020-10-12 18:37:36,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 18:37:36,387 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-10-12 18:37:36,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:37:36,477 INFO L225 Difference]: With dead ends: 42744 [2020-10-12 18:37:36,477 INFO L226 Difference]: Without dead ends: 25143 [2020-10-12 18:37:36,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2020-10-12 18:37:36,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25143 states. [2020-10-12 18:37:39,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25143 to 21428. [2020-10-12 18:37:39,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21428 states. [2020-10-12 18:37:39,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21428 states to 21428 states and 33824 transitions. [2020-10-12 18:37:39,461 INFO L78 Accepts]: Start accepts. Automaton has 21428 states and 33824 transitions. Word has length 88 [2020-10-12 18:37:39,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:37:39,461 INFO L479 AbstractCegarLoop]: Abstraction has 21428 states and 33824 transitions. [2020-10-12 18:37:39,461 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:37:39,461 INFO L276 IsEmpty]: Start isEmpty. Operand 21428 states and 33824 transitions. [2020-10-12 18:37:39,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-12 18:37:39,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:37:39,463 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] [2020-10-12 18:37:39,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 18:37:39,464 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:37:39,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:37:39,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1571566086, now seen corresponding path program 1 times [2020-10-12 18:37:39,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:37:39,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770380422] [2020-10-12 18:37:39,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:37:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:39,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:39,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:39,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:39,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:39,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:39,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:39,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:41,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:41,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:44,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:44,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 18:37:44,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 18:37:44,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 18:37:44,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:44,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:37:44,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:37:44,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 18:37:44,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:44,664 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:37:44,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:37:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:44,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:44,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:44,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:37:44,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:44,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:37:44,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:44,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:44,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:44,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:44,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:44,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:37:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:44,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:44,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:44,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:37:44,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:44,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 18:37:44,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:44,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:37:44,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:44,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 18:37:44,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:44,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:37:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:44,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:44,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:44,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:37:44,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:44,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:37:44,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:44,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:37:44,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:37:44,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:37:44,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:44,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:37:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:44,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:44,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:44,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:44,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:44,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:37:44,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:44,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:37:44,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:37:44,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:37:44,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:44,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:37:44,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:44,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:44,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:44,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:37:44,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:44,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:37:44,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:44,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:37:44,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:44,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:37:44,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:44,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 18:37:44,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:44,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:44,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:44,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:37:44,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:44,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:37:44,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:44,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:37:44,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:37:44,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:37:44,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:44,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:37:44,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770380422] [2020-10-12 18:37:44,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:37:44,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:37:44,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868890402] [2020-10-12 18:37:44,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:37:44,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:37:44,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:37:44,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:37:44,960 INFO L87 Difference]: Start difference. First operand 21428 states and 33824 transitions. Second operand 14 states. [2020-10-12 18:37:45,163 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:37:45,711 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:37:45,888 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:37:47,506 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 150 [2020-10-12 18:37:47,870 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 152 [2020-10-12 18:37:48,031 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:37:48,202 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:37:48,391 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:37:48,603 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:37:48,902 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-12 18:37:49,723 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-12 18:37:49,898 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-12 18:37:50,816 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-10-12 18:37:51,781 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-12 18:37:52,267 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2020-10-12 18:37:53,758 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-12 18:37:53,932 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-12 18:37:54,163 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:37:55,197 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:37:56,067 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-12 18:37:59,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:37:59,781 INFO L93 Difference]: Finished difference Result 66254 states and 104396 transitions. [2020-10-12 18:37:59,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-10-12 18:37:59,787 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 91 [2020-10-12 18:37:59,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:37:59,974 INFO L225 Difference]: With dead ends: 66254 [2020-10-12 18:37:59,974 INFO L226 Difference]: Without dead ends: 49194 [2020-10-12 18:38:00,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2526 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=1261, Invalid=6049, Unknown=0, NotChecked=0, Total=7310 [2020-10-12 18:38:00,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49194 states. [2020-10-12 18:38:02,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49194 to 41350. [2020-10-12 18:38:02,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41350 states. [2020-10-12 18:38:02,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41350 states to 41350 states and 65295 transitions. [2020-10-12 18:38:02,540 INFO L78 Accepts]: Start accepts. Automaton has 41350 states and 65295 transitions. Word has length 91 [2020-10-12 18:38:02,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:38:02,541 INFO L479 AbstractCegarLoop]: Abstraction has 41350 states and 65295 transitions. [2020-10-12 18:38:02,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:38:02,541 INFO L276 IsEmpty]: Start isEmpty. Operand 41350 states and 65295 transitions. [2020-10-12 18:38:02,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-12 18:38:02,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:38:02,543 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] [2020-10-12 18:38:02,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 18:38:02,544 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:38:02,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:38:02,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1737518141, now seen corresponding path program 1 times [2020-10-12 18:38:02,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:38:02,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1248721208] [2020-10-12 18:38:02,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:38:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:02,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:02,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:02,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:02,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:02,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:03,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:04,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:04,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:04,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:07,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:07,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 18:38:07,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 18:38:07,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 18:38:07,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:07,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:38:07,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 18:38:07,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 18:38:07,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:07,749 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:38:07,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:38:07,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:07,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:07,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:07,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:38:07,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:07,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:38:07,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:07,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:07,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:07,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:07,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:07,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:38:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:07,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:07,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:07,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:38:07,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:07,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:38:07,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:07,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:07,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:07,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:38:07,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:07,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:38:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:07,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:07,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:07,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:38:07,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:07,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:38:07,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:07,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:07,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:07,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:38:07,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:07,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:38:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:07,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:07,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:07,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:38:07,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:07,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:38:07,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:07,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:38:07,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:07,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:38:07,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:07,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 18:38:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:07,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:07,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:07,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:07,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:07,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:38:07,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:07,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:07,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:07,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:38:07,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:07,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 18:38:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:07,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:07,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:07,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:38:07,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:08,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:38:08,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:08,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:08,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:38:08,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:38:08,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:08,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:38:08,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1248721208] [2020-10-12 18:38:08,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:38:08,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:38:08,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407533214] [2020-10-12 18:38:08,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:38:08,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:38:08,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:38:08,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:38:08,027 INFO L87 Difference]: Start difference. First operand 41350 states and 65295 transitions. Second operand 11 states. [2020-10-12 18:38:08,212 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:38:08,691 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:38:10,604 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:38:13,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:38:13,132 INFO L93 Difference]: Finished difference Result 84309 states and 132962 transitions. [2020-10-12 18:38:13,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 18:38:13,133 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 91 [2020-10-12 18:38:13,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:38:13,286 INFO L225 Difference]: With dead ends: 84309 [2020-10-12 18:38:13,287 INFO L226 Difference]: Without dead ends: 48261 [2020-10-12 18:38:13,344 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=158, Invalid=442, Unknown=0, NotChecked=0, Total=600 [2020-10-12 18:38:13,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48261 states. [2020-10-12 18:38:17,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48261 to 41756. [2020-10-12 18:38:17,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41756 states. [2020-10-12 18:38:17,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41756 states to 41756 states and 65507 transitions. [2020-10-12 18:38:17,435 INFO L78 Accepts]: Start accepts. Automaton has 41756 states and 65507 transitions. Word has length 91 [2020-10-12 18:38:17,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:38:17,436 INFO L479 AbstractCegarLoop]: Abstraction has 41756 states and 65507 transitions. [2020-10-12 18:38:17,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:38:17,436 INFO L276 IsEmpty]: Start isEmpty. Operand 41756 states and 65507 transitions. [2020-10-12 18:38:17,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-12 18:38:17,438 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:38:17,438 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] [2020-10-12 18:38:17,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 18:38:17,438 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:38:17,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:38:17,439 INFO L82 PathProgramCache]: Analyzing trace with hash 333953759, now seen corresponding path program 1 times [2020-10-12 18:38:17,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:38:17,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [103858250] [2020-10-12 18:38:17,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:38:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:17,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:17,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:17,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:17,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:17,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:17,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:17,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:17,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:22,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:22,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 18:38:22,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:38:22,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 18:38:22,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:22,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:38:22,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-12 18:38:22,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 18:38:22,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:22,640 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:38:22,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:38:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:22,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:22,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:22,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:38:22,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:22,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:38:22,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:22,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:22,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:22,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:22,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:22,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:38:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:22,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:22,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:22,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:38:22,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:22,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:38:22,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:22,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:22,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:22,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:38:22,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:22,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:38:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:22,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:22,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:22,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:38:22,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:22,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:38:22,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:22,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:22,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:22,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:38:22,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:22,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:38:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:22,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:22,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:22,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:22,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:22,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:38:22,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:22,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:22,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:22,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:38:22,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:22,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:38:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:22,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:22,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:22,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:38:22,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:22,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:38:22,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:22,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:38:22,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:22,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:38:22,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:22,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 18:38:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:22,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:22,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:22,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:38:22,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:22,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:38:22,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:22,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:22,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 18:38:22,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:22,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:22,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:38:22,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [103858250] [2020-10-12 18:38:22,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:38:22,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 18:38:22,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287219395] [2020-10-12 18:38:22,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:38:22,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:38:22,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:38:22,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:38:22,855 INFO L87 Difference]: Start difference. First operand 41756 states and 65507 transitions. Second operand 9 states. [2020-10-12 18:38:23,046 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:38:24,166 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-12 18:38:25,087 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:38:27,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:38:27,567 INFO L93 Difference]: Finished difference Result 107251 states and 167243 transitions. [2020-10-12 18:38:27,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 18:38:27,570 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2020-10-12 18:38:27,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:38:27,769 INFO L225 Difference]: With dead ends: 107251 [2020-10-12 18:38:27,769 INFO L226 Difference]: Without dead ends: 65685 [2020-10-12 18:38:27,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2020-10-12 18:38:27,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65685 states. [2020-10-12 18:38:30,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65685 to 56223. [2020-10-12 18:38:30,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56223 states. [2020-10-12 18:38:31,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56223 states to 56223 states and 87546 transitions. [2020-10-12 18:38:31,018 INFO L78 Accepts]: Start accepts. Automaton has 56223 states and 87546 transitions. Word has length 92 [2020-10-12 18:38:31,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:38:31,019 INFO L479 AbstractCegarLoop]: Abstraction has 56223 states and 87546 transitions. [2020-10-12 18:38:31,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:38:31,019 INFO L276 IsEmpty]: Start isEmpty. Operand 56223 states and 87546 transitions. [2020-10-12 18:38:31,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-12 18:38:31,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:38:31,021 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] [2020-10-12 18:38:31,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 18:38:31,022 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:38:31,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:38:31,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1388704899, now seen corresponding path program 1 times [2020-10-12 18:38:31,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:38:31,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525785037] [2020-10-12 18:38:31,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:38:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:31,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:31,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:31,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:31,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:31,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:31,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:31,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:31,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:33,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:33,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:36,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:36,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 18:38:36,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 18:38:36,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 18:38:36,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:36,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:38:36,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:38:36,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 18:38:36,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:36,235 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:38:36,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:38:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:36,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:36,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:36,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:38:36,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:36,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:38:36,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:36,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:36,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:36,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:36,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:36,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:38:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:36,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:36,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:36,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 18:38:36,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:36,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 18:38:36,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:36,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:38:36,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:36,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 18:38:36,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:36,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:38:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:36,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:36,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:36,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:38:36,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:36,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:38:36,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:36,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:36,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:36,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:38:36,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:36,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:38:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:36,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:36,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:36,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:38:36,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:36,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:38:36,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:36,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:38:36,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:36,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:38:36,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:36,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 18:38:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:36,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:36,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:36,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:38:36,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:36,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:38:36,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:36,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:36,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:36,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:38:36,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:36,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:38:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:36,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:36,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:36,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:38:36,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:36,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:38:36,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:36,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:38:36,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:38:36,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:38:36,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:36,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:38:36,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525785037] [2020-10-12 18:38:36,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:38:36,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:38:36,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134104580] [2020-10-12 18:38:36,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:38:36,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:38:36,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:38:36,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:38:36,517 INFO L87 Difference]: Start difference. First operand 56223 states and 87546 transitions. Second operand 14 states. [2020-10-12 18:38:36,731 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:38:37,320 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:38:37,514 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:38:38,183 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-10-12 18:38:38,733 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 150 [2020-10-12 18:38:38,910 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-12 18:38:39,596 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 152 [2020-10-12 18:38:40,165 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-12 18:38:40,885 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-12 18:38:41,179 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:38:41,951 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-12 18:38:43,157 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:38:43,377 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:38:43,556 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:38:43,764 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 149