/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_opt-floodmax.4.ufo.BOUNDED-8.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 19:00:19,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 19:00:19,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 19:00:19,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 19:00:19,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 19:00:19,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 19:00:19,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 19:00:19,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 19:00:19,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 19:00:19,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 19:00:19,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 19:00:19,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 19:00:19,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 19:00:19,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 19:00:19,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 19:00:19,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 19:00:19,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 19:00:19,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 19:00:19,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 19:00:19,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 19:00:19,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 19:00:19,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 19:00:19,528 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 19:00:19,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 19:00:19,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 19:00:19,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 19:00:19,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 19:00:19,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 19:00:19,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 19:00:19,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 19:00:19,549 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 19:00:19,550 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 19:00:19,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 19:00:19,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 19:00:19,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 19:00:19,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 19:00:19,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 19:00:19,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 19:00:19,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 19:00:19,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 19:00:19,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 19:00:19,561 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 19:00:19,583 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 19:00:19,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 19:00:19,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 19:00:19,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 19:00:19,584 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 19:00:19,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 19:00:19,585 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 19:00:19,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 19:00:19,585 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 19:00:19,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 19:00:19,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 19:00:19,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 19:00:19,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 19:00:19,586 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 19:00:19,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 19:00:19,586 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 19:00:19,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 19:00:19,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 19:00:19,587 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 19:00:19,587 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 19:00:19,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 19:00:19,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 19:00:19,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 19:00:19,588 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 19:00:19,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 19:00:19,588 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 19:00:19,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 19:00:19,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 19:00:19,589 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 19:00:19,589 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 19:00:19,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 19:00:19,921 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 19:00:19,924 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 19:00:19,926 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 19:00:19,926 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 19:00:19,927 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.ufo.BOUNDED-8.pals.c [2020-10-12 19:00:19,988 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b1c06b19c/38cc31dd7737479d89cb2ba248ffb7fd/FLAG2d5ec5734 [2020-10-12 19:00:20,569 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 19:00:20,569 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.ufo.BOUNDED-8.pals.c [2020-10-12 19:00:20,583 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b1c06b19c/38cc31dd7737479d89cb2ba248ffb7fd/FLAG2d5ec5734 [2020-10-12 19:00:20,888 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b1c06b19c/38cc31dd7737479d89cb2ba248ffb7fd [2020-10-12 19:00:20,896 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 19:00:20,898 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 19:00:20,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 19:00:20,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 19:00:20,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 19:00:20,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:00:20" (1/1) ... [2020-10-12 19:00:20,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20abf48c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:00:20, skipping insertion in model container [2020-10-12 19:00:20,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:00:20" (1/1) ... [2020-10-12 19:00:20,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 19:00:20,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 19:00:21,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:00:21,449 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 19:00:21,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:00:21,555 INFO L208 MainTranslator]: Completed translation [2020-10-12 19:00:21,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:00:21 WrapperNode [2020-10-12 19:00:21,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 19:00:21,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 19:00:21,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 19:00:21,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 19:00:21,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:00:21" (1/1) ... [2020-10-12 19:00:21,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:00:21" (1/1) ... [2020-10-12 19:00:21,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:00:21" (1/1) ... [2020-10-12 19:00:21,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:00:21" (1/1) ... [2020-10-12 19:00:21,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:00:21" (1/1) ... [2020-10-12 19:00:21,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:00:21" (1/1) ... [2020-10-12 19:00:21,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:00:21" (1/1) ... [2020-10-12 19:00:21,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 19:00:21,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 19:00:21,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 19:00:21,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 19:00:21,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:00:21" (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 19:00:21,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 19:00:21,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 19:00:21,740 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 19:00:21,741 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 19:00:21,741 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 19:00:21,741 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 19:00:21,741 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-12 19:00:21,741 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 19:00:21,741 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 19:00:21,742 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 19:00:21,742 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 19:00:21,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 19:00:21,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 19:00:21,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 19:00:21,742 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 19:00:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 19:00:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 19:00:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 19:00:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 19:00:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 19:00:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 19:00:21,744 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 19:00:21,744 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 19:00:21,744 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 19:00:21,744 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 19:00:21,744 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 19:00:21,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 19:00:21,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 19:00:22,947 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 19:00:22,948 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 19:00:22,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:00:22 BoogieIcfgContainer [2020-10-12 19:00:22,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 19:00:22,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 19:00:22,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 19:00:22,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 19:00:22,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:00:20" (1/3) ... [2020-10-12 19:00:22,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b12eadf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:00:22, skipping insertion in model container [2020-10-12 19:00:22,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:00:21" (2/3) ... [2020-10-12 19:00:22,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b12eadf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:00:22, skipping insertion in model container [2020-10-12 19:00:22,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:00:22" (3/3) ... [2020-10-12 19:00:22,963 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.ufo.BOUNDED-8.pals.c [2020-10-12 19:00:22,973 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 19:00:22,982 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 19:00:22,998 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 19:00:23,028 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 19:00:23,028 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 19:00:23,029 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 19:00:23,029 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 19:00:23,029 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 19:00:23,029 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 19:00:23,030 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 19:00:23,030 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 19:00:23,058 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states. [2020-10-12 19:00:23,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-12 19:00:23,075 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:00:23,076 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:00:23,077 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:00:23,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:00:23,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1771600538, now seen corresponding path program 1 times [2020-10-12 19:00:23,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:00:23,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [248208730] [2020-10-12 19:00:23,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:00:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:23,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:24,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:24,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 19:00:24,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:24,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 560 [2020-10-12 19:00:24,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:24,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:24,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-12 19:00:24,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:24,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 19:00:24,657 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 19:00:24,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:00:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:24,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:24,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:24,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:00:24,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:24,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 19:00:24,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:24,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:24,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:24,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:24,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:24,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:00:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:24,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:24,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:24,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 19:00:24,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:24,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 19:00:24,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:24,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:24,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:24,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:24,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:24,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 19:00:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:24,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:24,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:24,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:00:24,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:24,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:00:24,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:24,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:24,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 19:00:24,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:24,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:24,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 19:00:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:24,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:24,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:24,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:24,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:24,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:00:24,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:24,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:24,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:00:24,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:24,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:24,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 19:00:24,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:24,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:24,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:24,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:24,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:24,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:00:24,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:24,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:24,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:00:24,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:24,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:24,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 19:00:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:24,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:24,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:24,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:24,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:24,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:00:24,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:24,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:24,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:00:24,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:24,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:25,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 19:00:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:25,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:25,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:25,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:25,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:25,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:00:25,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:25,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:25,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:00:25,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:25,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:25,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 19:00:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:25,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:25,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:25,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:00:25,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:25,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:00:25,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:25,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:25,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 19:00:25,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:25,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:00:25,082 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 19:00:25,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [248208730] [2020-10-12 19:00:25,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:00:25,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:00:25,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167451954] [2020-10-12 19:00:25,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:00:25,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:00:25,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:00:25,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:00:25,109 INFO L87 Difference]: Start difference. First operand 358 states. Second operand 7 states. [2020-10-12 19:00:27,407 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 19:00:28,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:00:28,018 INFO L93 Difference]: Finished difference Result 547 states and 921 transitions. [2020-10-12 19:00:28,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 19:00:28,021 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2020-10-12 19:00:28,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:00:28,039 INFO L225 Difference]: With dead ends: 547 [2020-10-12 19:00:28,040 INFO L226 Difference]: Without dead ends: 389 [2020-10-12 19:00:28,044 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:00:28,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-10-12 19:00:28,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 353. [2020-10-12 19:00:28,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-10-12 19:00:28,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 608 transitions. [2020-10-12 19:00:28,141 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 608 transitions. Word has length 108 [2020-10-12 19:00:28,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:00:28,141 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 608 transitions. [2020-10-12 19:00:28,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:00:28,142 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 608 transitions. [2020-10-12 19:00:28,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-12 19:00:28,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:00:28,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:00:28,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 19:00:28,147 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:00:28,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:00:28,148 INFO L82 PathProgramCache]: Analyzing trace with hash -878114200, now seen corresponding path program 1 times [2020-10-12 19:00:28,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:00:28,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1875673196] [2020-10-12 19:00:28,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:00:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:28,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:29,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:29,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 19:00:29,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:29,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1451 [2020-10-12 19:00:29,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:29,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 19:00:29,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-12 19:00:29,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 19:00:29,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:30,235 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 19:00:30,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:00:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:30,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:30,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:30,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:00:30,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:30,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 19:00:30,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:30,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:30,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:30,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:30,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 19:00:30,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:00:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:30,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:30,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:30,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 19:00:30,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:30,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-10-12 19:00:30,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:30,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:00:30,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:30,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 19:00:30,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:30,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 19:00:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:30,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:30,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:30,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:00:30,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:30,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:00:30,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:30,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:00:30,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 19:00:30,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:00:30,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:00:30,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 19:00:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:30,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:30,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:30,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:30,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:30,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:00:30,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:30,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:30,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:00:30,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:30,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:30,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 19:00:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:30,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:30,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:30,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:30,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:30,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:00:30,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:30,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:30,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:00:30,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:30,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:30,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 19:00:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:30,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:30,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:30,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:30,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:30,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:00:30,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:30,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:30,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:00:30,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:30,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:30,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 19:00:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:30,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:30,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:30,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:30,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:30,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:00:30,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:30,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:30,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:00:30,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:30,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:30,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 19:00:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:30,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:30,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:30,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:00:30,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:30,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 19:00:30,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:30,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:30,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 19:00:30,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:30,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:30,991 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 19:00:30,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1875673196] [2020-10-12 19:00:30,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:00:30,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 19:00:30,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903553922] [2020-10-12 19:00:30,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 19:00:30,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:00:30,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 19:00:30,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-12 19:00:30,996 INFO L87 Difference]: Start difference. First operand 353 states and 608 transitions. Second operand 13 states. [2020-10-12 19:00:33,500 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-12 19:00:33,910 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2020-10-12 19:00:34,420 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-12 19:00:34,862 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-12 19:00:38,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:00:38,307 INFO L93 Difference]: Finished difference Result 550 states and 925 transitions. [2020-10-12 19:00:38,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:00:38,307 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 108 [2020-10-12 19:00:38,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:00:38,315 INFO L225 Difference]: With dead ends: 550 [2020-10-12 19:00:38,315 INFO L226 Difference]: Without dead ends: 399 [2020-10-12 19:00:38,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-12 19:00:38,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-12 19:00:38,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 353. [2020-10-12 19:00:38,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-10-12 19:00:38,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 562 transitions. [2020-10-12 19:00:38,370 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 562 transitions. Word has length 108 [2020-10-12 19:00:38,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:00:38,371 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 562 transitions. [2020-10-12 19:00:38,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 19:00:38,371 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 562 transitions. [2020-10-12 19:00:38,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-12 19:00:38,375 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:00:38,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:00:38,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 19:00:38,376 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:00:38,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:00:38,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1443712870, now seen corresponding path program 1 times [2020-10-12 19:00:38,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:00:38,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1723282686] [2020-10-12 19:00:38,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:00:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:38,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:38,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:39,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:39,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:43,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:43,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-12 19:00:43,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 19:00:43,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-12 19:00:43,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:43,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:00:43,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-12 19:00:43,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 19:00:43,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:00:43,966 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 19:00:43,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:00:43,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:43,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:43,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:43,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:00:43,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:43,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 19:00:43,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:43,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:43,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:43,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:43,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:00:43,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:00:44,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:44,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:44,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:44,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 19:00:44,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:44,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-12 19:00:44,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:44,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:44,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:44,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-12 19:00:44,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:44,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 19:00:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:44,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:44,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:44,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:00:44,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:44,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:00:44,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:44,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:44,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:44,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:00:44,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:44,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 19:00:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:44,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:44,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:44,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:44,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:44,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:00:44,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:44,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:44,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:44,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:00:44,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:44,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-12 19:00:44,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:44,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:44,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:44,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:44,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:44,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 19:00:44,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:44,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:00:44,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:00:44,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:00:44,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:44,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 19:00:44,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:44,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:44,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:44,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:44,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:44,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:00:44,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:44,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:44,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:00:44,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:44,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:44,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 19:00:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:44,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:44,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:44,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:44,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:44,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:00:44,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:44,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:44,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:00:44,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:44,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:44,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-12 19:00:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:44,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:44,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:44,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:00:44,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:44,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 19:00:44,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:44,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:44,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 19:00:44,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:44,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:44,452 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 19:00:44,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1723282686] [2020-10-12 19:00:44,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:00:44,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 19:00:44,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724364840] [2020-10-12 19:00:44,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 19:00:44,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:00:44,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 19:00:44,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 19:00:44,457 INFO L87 Difference]: Start difference. First operand 353 states and 562 transitions. Second operand 10 states. [2020-10-12 19:00:44,827 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:00:46,624 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:00:47,334 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:00:47,622 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:00:48,237 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:00:49,849 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:00:49,978 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:00:50,165 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:00:50,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:00:50,205 INFO L93 Difference]: Finished difference Result 710 states and 1139 transitions. [2020-10-12 19:00:50,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 19:00:50,206 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 153 [2020-10-12 19:00:50,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:00:50,212 INFO L225 Difference]: With dead ends: 710 [2020-10-12 19:00:50,212 INFO L226 Difference]: Without dead ends: 565 [2020-10-12 19:00:50,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-12 19:00:50,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-12 19:00:50,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 488. [2020-10-12 19:00:50,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2020-10-12 19:00:50,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 779 transitions. [2020-10-12 19:00:50,267 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 779 transitions. Word has length 153 [2020-10-12 19:00:50,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:00:50,268 INFO L479 AbstractCegarLoop]: Abstraction has 488 states and 779 transitions. [2020-10-12 19:00:50,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 19:00:50,268 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 779 transitions. [2020-10-12 19:00:50,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-12 19:00:50,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:00:50,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:00:50,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 19:00:50,272 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:00:50,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:00:50,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1938220541, now seen corresponding path program 1 times [2020-10-12 19:00:50,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:00:50,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1519320907] [2020-10-12 19:00:50,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:00:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:50,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:50,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:50,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:50,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:51,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:53,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:55,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:55,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 19:00:55,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 19:00:55,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-12 19:00:55,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:55,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:00:55,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-12 19:00:55,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 19:00:55,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:55,789 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 19:00:55,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:00:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:55,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:55,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:55,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:00:55,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:55,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 19:00:55,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:55,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:55,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:55,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:55,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:55,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:00:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:55,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:55,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:55,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 19:00:55,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:55,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-12 19:00:55,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 19:00:55,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:56,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 19:00:56,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:56,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:56,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:56,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:00:56,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:56,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:00:56,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:56,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:56,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:56,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:00:56,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:00:56,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 19:00:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:56,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:56,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:56,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:56,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:56,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:00:56,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:56,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:56,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:56,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:00:56,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:56,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-12 19:00:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:56,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:56,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:56,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:00:56,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:56,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 19:00:56,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:56,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:56,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:56,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:00:56,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:00:56,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-12 19:00:56,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:56,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:56,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:56,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:56,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:56,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:00:56,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:56,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:56,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:56,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:00:56,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:56,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 19:00:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:56,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:56,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:56,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:56,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:56,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 19:00:56,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:56,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:00:56,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:00:56,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:00:56,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:56,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-12 19:00:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:56,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:56,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:56,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:00:56,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:56,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:00:56,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:56,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:56,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 19:00:56,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:56,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:56,358 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 19:00:56,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1519320907] [2020-10-12 19:00:56,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:00:56,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 19:00:56,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587329716] [2020-10-12 19:00:56,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 19:00:56,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:00:56,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 19:00:56,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 19:00:56,361 INFO L87 Difference]: Start difference. First operand 488 states and 779 transitions. Second operand 10 states. [2020-10-12 19:00:56,708 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:00:59,410 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 19:01:01,267 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:01:01,389 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:01:01,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:01:01,597 INFO L93 Difference]: Finished difference Result 1182 states and 1899 transitions. [2020-10-12 19:01:01,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 19:01:01,597 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2020-10-12 19:01:01,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:01:01,604 INFO L225 Difference]: With dead ends: 1182 [2020-10-12 19:01:01,605 INFO L226 Difference]: Without dead ends: 902 [2020-10-12 19:01:01,606 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-12 19:01:01,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2020-10-12 19:01:01,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 750. [2020-10-12 19:01:01,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 750 states. [2020-10-12 19:01:01,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1197 transitions. [2020-10-12 19:01:01,673 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1197 transitions. Word has length 156 [2020-10-12 19:01:01,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:01:01,674 INFO L479 AbstractCegarLoop]: Abstraction has 750 states and 1197 transitions. [2020-10-12 19:01:01,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 19:01:01,674 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1197 transitions. [2020-10-12 19:01:01,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-12 19:01:01,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:01:01,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:01:01,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 19:01:01,678 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:01:01,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:01:01,678 INFO L82 PathProgramCache]: Analyzing trace with hash 2101291540, now seen corresponding path program 1 times [2020-10-12 19:01:01,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:01:01,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [797151353] [2020-10-12 19:01:01,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:01:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:01,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:01,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:01,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:02,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:02,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:04,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:04,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:04,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:06,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:06,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-12 19:01:06,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:01:06,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 19:01:06,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:06,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:01:06,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-12 19:01:06,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 19:01:06,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:07,222 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 19:01:07,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:01:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:07,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:07,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:07,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:01:07,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:07,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 19:01:07,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:07,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:07,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:07,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:07,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:01:07,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:01:07,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:07,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:07,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:07,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 19:01:07,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:07,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-12 19:01:07,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:07,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:07,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:07,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 19:01:07,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:07,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 19:01:07,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:07,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:07,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:07,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:01:07,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:07,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 19:01:07,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:07,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:07,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:07,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:01:07,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:07,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 19:01:07,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:07,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:07,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:07,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:07,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:07,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:01:07,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:07,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:07,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:07,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:01:07,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:07,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-12 19:01:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:07,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:07,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:07,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:01:07,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:07,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:01:07,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:07,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:07,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:07,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:01:07,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:07,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-12 19:01:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:07,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:07,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:07,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:07,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:07,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 19:01:07,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:07,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:01:07,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:01:07,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:01:07,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:07,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 19:01:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:07,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:07,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:07,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:01:07,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:07,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:01:07,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:07,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:07,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:01:07,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:07,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:07,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-12 19:01:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:07,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:07,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:07,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:01:07,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:07,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 19:01:07,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:07,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:07,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 19:01:07,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:07,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:07,666 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 19:01:07,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [797151353] [2020-10-12 19:01:07,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:01:07,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 19:01:07,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575867512] [2020-10-12 19:01:07,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 19:01:07,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:01:07,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 19:01:07,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 19:01:07,669 INFO L87 Difference]: Start difference. First operand 750 states and 1197 transitions. Second operand 10 states. [2020-10-12 19:01:08,010 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:01:12,123 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 19:01:12,668 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:01:12,797 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:01:12,987 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:01:13,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:01:13,040 INFO L93 Difference]: Finished difference Result 2102 states and 3371 transitions. [2020-10-12 19:01:13,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 19:01:13,041 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 159 [2020-10-12 19:01:13,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:01:13,050 INFO L225 Difference]: With dead ends: 2102 [2020-10-12 19:01:13,051 INFO L226 Difference]: Without dead ends: 1560 [2020-10-12 19:01:13,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-12 19:01:13,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2020-10-12 19:01:13,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1258. [2020-10-12 19:01:13,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1258 states. [2020-10-12 19:01:13,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 2001 transitions. [2020-10-12 19:01:13,175 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 2001 transitions. Word has length 159 [2020-10-12 19:01:13,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:01:13,176 INFO L479 AbstractCegarLoop]: Abstraction has 1258 states and 2001 transitions. [2020-10-12 19:01:13,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 19:01:13,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 2001 transitions. [2020-10-12 19:01:13,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-12 19:01:13,179 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:01:13,179 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:01:13,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 19:01:13,180 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:01:13,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:01:13,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1181435657, now seen corresponding path program 1 times [2020-10-12 19:01:13,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:01:13,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2140739481] [2020-10-12 19:01:13,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:01:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:13,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:13,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:13,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:13,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:14,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:14,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:14,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:14,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:14,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:14,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:18,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:18,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-12 19:01:18,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 19:01:18,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-12 19:01:18,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:18,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:01:18,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 19:01:18,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 19:01:18,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:18,668 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 19:01:18,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:01:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:18,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:18,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:18,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:01:18,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:18,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 19:01:18,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:18,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:18,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:18,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:18,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:01:18,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:01:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:18,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:18,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:18,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 19:01:18,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:18,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-12 19:01:18,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:18,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:18,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:18,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 19:01:18,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:01:18,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 19:01:18,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:18,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:18,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:18,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:01:18,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:18,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:01:18,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:18,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:18,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:18,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:01:18,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:01:18,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 19:01:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:18,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:18,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:18,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:18,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:18,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 19:01:18,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:18,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:01:18,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:01:18,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:01:18,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:19,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-12 19:01:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:19,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:19,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:19,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:01:19,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:19,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:01:19,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:19,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:19,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:01:19,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:19,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:19,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-12 19:01:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:19,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:19,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:19,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:01:19,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:19,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:01:19,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:19,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:19,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:01:19,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:19,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:19,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-12 19:01:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:19,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:19,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:19,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:01:19,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:19,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:01:19,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:19,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:19,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:01:19,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:19,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:19,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-12 19:01:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:19,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:19,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:19,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:01:19,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:19,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:01:19,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:19,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:19,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 19:01:19,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:19,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:19,186 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 19:01:19,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2140739481] [2020-10-12 19:01:19,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:01:19,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 19:01:19,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208211748] [2020-10-12 19:01:19,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 19:01:19,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:01:19,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 19:01:19,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 19:01:19,190 INFO L87 Difference]: Start difference. First operand 1258 states and 2001 transitions. Second operand 10 states. [2020-10-12 19:01:19,579 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:01:21,206 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 19:01:21,476 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:01:24,181 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:01:24,639 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:01:24,836 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:01:24,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:01:24,944 INFO L93 Difference]: Finished difference Result 3926 states and 6275 transitions. [2020-10-12 19:01:24,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 19:01:24,948 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-12 19:01:24,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:01:24,967 INFO L225 Difference]: With dead ends: 3926 [2020-10-12 19:01:24,967 INFO L226 Difference]: Without dead ends: 2876 [2020-10-12 19:01:24,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-12 19:01:24,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2876 states. [2020-10-12 19:01:25,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2876 to 2250. [2020-10-12 19:01:25,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2250 states. [2020-10-12 19:01:25,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2250 states to 2250 states and 3505 transitions. [2020-10-12 19:01:25,195 INFO L78 Accepts]: Start accepts. Automaton has 2250 states and 3505 transitions. Word has length 162 [2020-10-12 19:01:25,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:01:25,195 INFO L479 AbstractCegarLoop]: Abstraction has 2250 states and 3505 transitions. [2020-10-12 19:01:25,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 19:01:25,196 INFO L276 IsEmpty]: Start isEmpty. Operand 2250 states and 3505 transitions. [2020-10-12 19:01:25,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-12 19:01:25,200 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:01:25,200 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:01:25,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 19:01:25,201 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:01:25,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:01:25,201 INFO L82 PathProgramCache]: Analyzing trace with hash -358751448, now seen corresponding path program 1 times [2020-10-12 19:01:25,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:01:25,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [443419414] [2020-10-12 19:01:25,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:01:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:25,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:25,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:25,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:25,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:26,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:26,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:26,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:30,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:30,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-12 19:01:30,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 19:01:30,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 19:01:30,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:30,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 19:01:30,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 19:01:30,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-12 19:01:30,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:30,683 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 19:01:30,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:01:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:30,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:30,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:30,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:01:30,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:30,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:01:30,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:30,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:30,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:30,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:30,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:30,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:01:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:30,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:30,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:30,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 19:01:30,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:30,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-12 19:01:30,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:30,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:01:30,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:30,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 19:01:30,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:31,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 19:01:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:31,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:31,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:31,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:01:31,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:31,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:01:31,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:31,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:31,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:31,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:01:31,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:31,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 19:01:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:31,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:31,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:31,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:01:31,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:31,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 19:01:31,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:31,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:01:31,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:01:31,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 19:01:31,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:31,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 19:01:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:31,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:31,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:31,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:01:31,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:31,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 19:01:31,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:31,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:01:31,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:01:31,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 19:01:31,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:31,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 19:01:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:31,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:31,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:31,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:01:31,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:31,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 19:01:31,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:31,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:01:31,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:01:31,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 19:01:31,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:31,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 19:01:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:31,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:31,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:31,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:01:31,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:31,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 19:01:31,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:31,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:01:31,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:01:31,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 19:01:31,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:31,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-12 19:01:31,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:31,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:31,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:31,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:01:31,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:31,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 19:01:31,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:31,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:31,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 19:01:31,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 19:01:31,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:31,395 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 19:01:31,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [443419414] [2020-10-12 19:01:31,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:01:31,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-12 19:01:31,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569175760] [2020-10-12 19:01:31,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 19:01:31,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:01:31,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 19:01:31,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-10-12 19:01:31,397 INFO L87 Difference]: Start difference. First operand 2250 states and 3505 transitions. Second operand 17 states. [2020-10-12 19:01:31,810 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-12 19:01:33,723 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:01:34,107 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-12 19:01:34,508 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-12 19:01:34,832 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 19:01:35,158 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 19:01:35,425 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:01:35,616 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 19:01:35,943 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:01:36,257 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 19:01:36,492 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 19:01:36,655 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:01:36,807 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:01:37,257 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 19:01:37,560 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:01:37,741 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 19:01:37,997 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 19:01:38,169 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:01:38,350 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:01:38,479 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:01:38,929 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 19:01:39,475 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 19:01:40,148 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-12 19:01:40,543 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-12 19:01:40,932 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 259 [2020-10-12 19:01:41,297 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-12 19:01:42,858 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 19:01:43,019 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-12 19:01:43,180 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 19:01:43,323 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 19:01:43,479 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:01:43,647 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 19:01:43,797 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:01:45,162 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:01:45,394 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:01:45,563 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 19:01:45,726 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-12 19:01:45,958 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 19:01:46,127 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 19:01:46,287 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 19:01:47,332 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 19:01:47,681 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 19:01:47,935 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-12 19:01:48,090 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 19:01:48,371 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 19:01:48,590 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:01:49,645 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 19:01:49,889 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 19:01:50,076 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 19:01:50,250 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 19:01:50,502 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-12 19:01:50,830 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 19:01:52,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:01:52,241 INFO L93 Difference]: Finished difference Result 15531 states and 24688 transitions. [2020-10-12 19:01:52,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-10-12 19:01:52,246 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 165 [2020-10-12 19:01:52,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:01:52,324 INFO L225 Difference]: With dead ends: 15531 [2020-10-12 19:01:52,325 INFO L226 Difference]: Without dead ends: 13489 [2020-10-12 19:01:52,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1876 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=1177, Invalid=4675, Unknown=0, NotChecked=0, Total=5852 [2020-10-12 19:01:52,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13489 states. [2020-10-12 19:01:53,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13489 to 10465. [2020-10-12 19:01:53,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10465 states. [2020-10-12 19:01:53,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10465 states to 10465 states and 16451 transitions. [2020-10-12 19:01:53,091 INFO L78 Accepts]: Start accepts. Automaton has 10465 states and 16451 transitions. Word has length 165 [2020-10-12 19:01:53,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:01:53,092 INFO L479 AbstractCegarLoop]: Abstraction has 10465 states and 16451 transitions. [2020-10-12 19:01:53,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 19:01:53,092 INFO L276 IsEmpty]: Start isEmpty. Operand 10465 states and 16451 transitions. [2020-10-12 19:01:53,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-12 19:01:53,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:01:53,102 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:01:53,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 19:01:53,103 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:01:53,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:01:53,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1345258537, now seen corresponding path program 1 times [2020-10-12 19:01:53,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:01:53,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [351740372] [2020-10-12 19:01:53,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:01:53,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:53,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:53,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:53,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:53,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:53,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:54,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:54,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:54,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:58,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:58,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-12 19:01:58,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:01:58,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-12 19:01:58,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:58,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:01:58,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 19:01:58,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 19:01:58,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:58,533 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 19:01:58,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:01:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:58,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:58,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:58,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:01:58,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:58,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:01:58,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:58,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:58,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:58,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:58,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:58,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:01:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:58,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:58,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:58,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 19:01:58,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:58,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-12 19:01:58,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:58,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:01:58,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:58,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 19:01:58,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:58,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 19:01:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:58,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:58,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:58,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:01:58,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:58,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:01:58,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:58,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:58,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:58,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:01:58,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:58,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 19:01:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:58,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:58,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:58,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:01:58,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:58,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 19:01:58,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:01:58,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:01:58,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 19:01:58,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:01:58,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 19:01:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:58,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:58,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:58,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:01:58,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:58,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:01:58,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:58,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:58,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:58,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:01:58,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:58,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 19:01:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:58,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:58,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:58,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:01:58,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:58,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:01:58,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:58,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:58,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:58,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:01:58,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:58,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 19:01:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:58,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:58,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:58,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:01:58,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:58,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:01:58,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:58,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:58,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:01:58,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:58,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-12 19:01:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:58,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:58,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:58,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:58,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:58,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:01:58,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:58,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:58,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 19:01:58,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 19:01:58,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:58,996 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 19:01:58,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [351740372] [2020-10-12 19:01:58,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:01:58,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:01:58,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250826036] [2020-10-12 19:01:58,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:01:58,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:01:58,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:01:58,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:01:58,998 INFO L87 Difference]: Start difference. First operand 10465 states and 16451 transitions. Second operand 11 states. [2020-10-12 19:01:59,436 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-12 19:02:01,274 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:02:01,565 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 19:02:02,214 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 19:02:03,225 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 19:02:04,230 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 19:02:05,572 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-12 19:02:05,969 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-12 19:02:06,968 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 19:02:07,138 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:02:07,282 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 19:02:07,471 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 19:02:08,554 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:02:09,406 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:02:09,557 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:02:10,508 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:02:11,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:02:11,589 INFO L93 Difference]: Finished difference Result 36997 states and 58840 transitions. [2020-10-12 19:02:11,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 19:02:11,590 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 166 [2020-10-12 19:02:11,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:02:11,714 INFO L225 Difference]: With dead ends: 36997 [2020-10-12 19:02:11,715 INFO L226 Difference]: Without dead ends: 26740 [2020-10-12 19:02:11,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 19:02:11,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26740 states. [2020-10-12 19:02:12,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26740 to 20796. [2020-10-12 19:02:12,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20796 states. [2020-10-12 19:02:12,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20796 states to 20796 states and 32749 transitions. [2020-10-12 19:02:12,978 INFO L78 Accepts]: Start accepts. Automaton has 20796 states and 32749 transitions. Word has length 166 [2020-10-12 19:02:12,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:02:12,978 INFO L479 AbstractCegarLoop]: Abstraction has 20796 states and 32749 transitions. [2020-10-12 19:02:12,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:02:12,978 INFO L276 IsEmpty]: Start isEmpty. Operand 20796 states and 32749 transitions. [2020-10-12 19:02:12,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-12 19:02:12,989 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:02:12,989 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:02:12,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 19:02:12,990 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:02:12,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:02:12,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1315460530, now seen corresponding path program 1 times [2020-10-12 19:02:12,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:02:12,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621215193] [2020-10-12 19:02:12,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:02:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:13,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:13,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:13,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:13,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:13,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:14,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:14,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:14,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:15,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:18,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:18,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 19:02:18,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 19:02:18,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-12 19:02:18,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:18,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 19:02:18,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 19:02:18,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 19:02:18,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:18,484 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 19:02:18,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:02:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:18,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:18,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:18,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:02:18,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:18,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:02:18,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:18,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:18,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:18,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:18,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:18,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:02:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:18,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:18,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:18,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 19:02:18,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:18,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-12 19:02:18,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:18,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:18,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:18,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 19:02:18,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:18,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 19:02:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:18,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:18,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:18,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:02:18,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:18,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:02:18,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:18,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:18,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:18,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:02:18,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:18,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 19:02:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:18,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:18,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:18,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:02:18,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:18,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 19:02:18,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:18,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:18,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:02:18,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 19:02:18,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:18,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 19:02:18,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:18,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:18,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:18,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 19:02:18,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:18,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 19:02:18,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:18,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:02:18,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:18,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 19:02:18,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:18,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 19:02:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:18,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:18,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:18,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:02:18,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:18,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 19:02:18,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:18,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:18,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:02:18,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 19:02:18,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:18,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-12 19:02:18,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:18,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:18,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:18,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:02:18,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:18,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 19:02:18,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:18,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:18,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:02:18,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 19:02:18,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:18,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-12 19:02:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:18,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:19,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:19,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:02:19,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:19,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:02:19,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:19,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:19,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 19:02:19,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 19:02:19,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:19,065 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 19:02:19,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1621215193] [2020-10-12 19:02:19,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:02:19,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 19:02:19,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564171972] [2020-10-12 19:02:19,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 19:02:19,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:02:19,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 19:02:19,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-10-12 19:02:19,069 INFO L87 Difference]: Start difference. First operand 20796 states and 32749 transitions. Second operand 16 states. [2020-10-12 19:02:19,875 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 258 [2020-10-12 19:02:22,350 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:02:22,693 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-12 19:02:23,043 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-12 19:02:23,445 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 129 [2020-10-12 19:02:24,116 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 127 [2020-10-12 19:02:24,453 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:02:24,644 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:02:25,400 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 129 [2020-10-12 19:02:25,594 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:02:25,951 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 19:02:26,610 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 129 [2020-10-12 19:02:26,830 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:02:26,968 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:02:27,358 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 19:02:27,745 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 19:02:27,904 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:02:28,448 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-12 19:02:28,812 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-12 19:02:29,172 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-12 19:02:29,531 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-12 19:02:29,885 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-12 19:02:30,245 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-12 19:02:31,797 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 19:02:31,947 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:02:32,106 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:02:32,326 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:02:32,543 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 19:02:32,713 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:02:33,661 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:02:34,080 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:02:34,409 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:02:34,587 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:02:34,743 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:02:35,177 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:02:35,336 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:02:36,554 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:02:36,905 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:02:37,088 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:02:37,283 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:02:37,452 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 19:02:37,601 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:02:38,173 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 19:02:38,338 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:02:39,573 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:02:39,730 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:02:39,997 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:02:40,277 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:02:40,483 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:02:40,747 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 19:02:40,998 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:02:41,393 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 19:02:42,793 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:02:43,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:02:43,630 INFO L93 Difference]: Finished difference Result 56727 states and 90434 transitions. [2020-10-12 19:02:43,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-10-12 19:02:43,631 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 167 [2020-10-12 19:02:43,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:02:43,779 INFO L225 Difference]: With dead ends: 56727 [2020-10-12 19:02:43,779 INFO L226 Difference]: Without dead ends: 38082 [2020-10-12 19:02:43,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1938 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=1202, Invalid=5118, Unknown=0, NotChecked=0, Total=6320 [2020-10-12 19:02:43,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38082 states. [2020-10-12 19:02:45,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38082 to 28150. [2020-10-12 19:02:45,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28150 states. [2020-10-12 19:02:45,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28150 states to 28150 states and 44533 transitions. [2020-10-12 19:02:45,323 INFO L78 Accepts]: Start accepts. Automaton has 28150 states and 44533 transitions. Word has length 167 [2020-10-12 19:02:45,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:02:45,324 INFO L479 AbstractCegarLoop]: Abstraction has 28150 states and 44533 transitions. [2020-10-12 19:02:45,324 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 19:02:45,324 INFO L276 IsEmpty]: Start isEmpty. Operand 28150 states and 44533 transitions. [2020-10-12 19:02:45,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-12 19:02:45,336 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:02:45,336 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:02:45,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 19:02:45,336 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:02:45,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:02:45,337 INFO L82 PathProgramCache]: Analyzing trace with hash 429852686, now seen corresponding path program 1 times [2020-10-12 19:02:45,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:02:45,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1782653435] [2020-10-12 19:02:45,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:02:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:45,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:45,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:45,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:45,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:45,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:46,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:46,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:46,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:46,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:50,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:50,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 19:02:50,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 19:02:50,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-12 19:02:50,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:50,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 19:02:50,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 19:02:50,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 19:02:50,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:50,811 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 19:02:50,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:02:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:50,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:50,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:50,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:02:50,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:50,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 19:02:50,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:50,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:50,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:50,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:50,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:50,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:02:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:50,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:50,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:50,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 19:02:50,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:50,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-12 19:02:50,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:50,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:50,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:50,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-12 19:02:50,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:51,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 19:02:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:51,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:51,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:51,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:02:51,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:51,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:02:51,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:51,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:51,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:51,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:02:51,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:51,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 19:02:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:51,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:51,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:51,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:02:51,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:51,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 19:02:51,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:51,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:51,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:02:51,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 19:02:51,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:51,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 19:02:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:51,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:51,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:51,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:02:51,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:51,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:02:51,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:51,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:51,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:02:51,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 19:02:51,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:51,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 19:02:51,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:51,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:51,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:51,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:02:51,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:51,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:02:51,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:51,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:51,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:02:51,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 19:02:51,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:51,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 19:02:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:51,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:51,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:51,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 19:02:51,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:51,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:02:51,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:51,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:02:51,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:51,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 19:02:51,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:51,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-12 19:02:51,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:51,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:51,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:51,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:02:51,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:51,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:02:51,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:51,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:51,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 19:02:51,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 19:02:51,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:51,358 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 19:02:51,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1782653435] [2020-10-12 19:02:51,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:02:51,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 19:02:51,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074413876] [2020-10-12 19:02:51,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 19:02:51,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:02:51,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 19:02:51,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-12 19:02:51,360 INFO L87 Difference]: Start difference. First operand 28150 states and 44533 transitions. Second operand 16 states. [2020-10-12 19:02:52,110 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 257 [2020-10-12 19:02:54,616 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:02:54,976 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-12 19:02:55,342 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-12 19:02:55,735 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 128 [2020-10-12 19:02:56,462 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 128 [2020-10-12 19:02:56,812 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:02:56,990 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:02:57,316 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 19:02:57,630 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:02:58,210 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-12 19:02:58,483 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 126 [2020-10-12 19:02:58,684 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:02:58,865 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 19:02:59,316 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 19:02:59,621 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 19:02:59,805 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:03:00,166 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 126 [2020-10-12 19:03:00,566 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-12 19:03:00,782 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:03:00,972 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:03:01,118 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:03:02,449 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 259 [2020-10-12 19:03:02,851 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-12 19:03:03,333 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2020-10-12 19:03:04,818 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 19:03:04,990 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 19:03:05,203 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:03:05,381 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 19:03:05,528 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:03:05,736 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:03:06,560 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 19:03:06,848 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 19:03:07,180 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 19:03:07,544 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:03:07,704 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:03:07,872 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 19:03:08,827 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 19:03:09,358 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 130 [2020-10-12 19:03:09,675 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 19:03:09,929 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 19:03:10,788 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 19:03:10,972 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 19:03:11,251 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 19:03:12,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:03:12,520 INFO L93 Difference]: Finished difference Result 51219 states and 81930 transitions. [2020-10-12 19:03:12,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-10-12 19:03:12,521 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 167 [2020-10-12 19:03:12,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:03:12,638 INFO L225 Difference]: With dead ends: 51219 [2020-10-12 19:03:12,638 INFO L226 Difference]: Without dead ends: 35416 [2020-10-12 19:03:12,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1415 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=1031, Invalid=3939, Unknown=0, NotChecked=0, Total=4970 [2020-10-12 19:03:12,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35416 states. [2020-10-12 19:03:14,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35416 to 27192. [2020-10-12 19:03:14,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27192 states. [2020-10-12 19:03:14,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27192 states to 27192 states and 43017 transitions. [2020-10-12 19:03:14,360 INFO L78 Accepts]: Start accepts. Automaton has 27192 states and 43017 transitions. Word has length 167 [2020-10-12 19:03:14,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:03:14,361 INFO L479 AbstractCegarLoop]: Abstraction has 27192 states and 43017 transitions. [2020-10-12 19:03:14,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 19:03:14,361 INFO L276 IsEmpty]: Start isEmpty. Operand 27192 states and 43017 transitions. [2020-10-12 19:03:14,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-12 19:03:14,370 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:03:14,370 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:03:14,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 19:03:14,370 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:03:14,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:03:14,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1716691713, now seen corresponding path program 1 times [2020-10-12 19:03:14,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:03:14,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932138407] [2020-10-12 19:03:14,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:03:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:14,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:14,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:14,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:14,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:14,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:14,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:15,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:15,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:18,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:19,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:19,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:19,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:19,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:19,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 19:03:19,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 19:03:19,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-12 19:03:19,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:19,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:03:19,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-12 19:03:19,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 19:03:19,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:19,819 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 19:03:19,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:03:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:19,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:19,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:19,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:03:19,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:19,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 19:03:19,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:19,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:03:19,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:19,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:03:19,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:19,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:03:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:19,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:19,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:19,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 19:03:19,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:19,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-12 19:03:19,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:19,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:03:19,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:19,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 19:03:19,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:19,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 19:03:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:19,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:19,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:19,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:03:19,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:19,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 19:03:19,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:19,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:19,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:19,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:03:19,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:20,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 19:03:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:20,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:20,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:20,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:03:20,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:20,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:03:20,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:20,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:20,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:20,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:03:20,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:20,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 19:03:20,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:20,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:20,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:20,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:03:20,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:20,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:03:20,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:20,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:03:20,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:03:20,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 19:03:20,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:20,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 19:03:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:20,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:20,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:20,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:03:20,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:20,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:03:20,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:20,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:20,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:20,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:03:20,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:20,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 19:03:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:20,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:20,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:20,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:03:20,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:20,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:03:20,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:20,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:20,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:20,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:03:20,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:20,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-12 19:03:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:20,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:20,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:20,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 19:03:20,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:20,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:03:20,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:20,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:20,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:03:20,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 19:03:20,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:20,239 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 19:03:20,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [932138407] [2020-10-12 19:03:20,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:03:20,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:03:20,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482227038] [2020-10-12 19:03:20,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:03:20,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:03:20,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:03:20,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:03:20,241 INFO L87 Difference]: Start difference. First operand 27192 states and 43017 transitions. Second operand 11 states. [2020-10-12 19:03:20,641 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-12 19:03:22,700 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:03:23,193 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 19:03:23,621 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 19:03:24,014 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:03:24,253 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 19:03:24,526 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:03:25,222 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 19:03:25,502 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:03:26,534 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-12 19:03:26,888 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-12 19:03:28,190 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:03:28,327 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:03:28,448 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:03:29,474 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 19:03:29,613 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 19:03:30,010 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 19:03:31,437 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:03:31,599 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:03:32,474 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:03:32,623 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:03:33,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:03:33,989 INFO L93 Difference]: Finished difference Result 103646 states and 165678 transitions. [2020-10-12 19:03:33,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 19:03:33,990 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 167 [2020-10-12 19:03:33,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:03:34,268 INFO L225 Difference]: With dead ends: 103646 [2020-10-12 19:03:34,269 INFO L226 Difference]: Without dead ends: 76662 [2020-10-12 19:03:34,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 19:03:34,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76662 states. [2020-10-12 19:03:38,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76662 to 59422. [2020-10-12 19:03:38,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59422 states. [2020-10-12 19:03:38,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59422 states to 59422 states and 94161 transitions. [2020-10-12 19:03:38,760 INFO L78 Accepts]: Start accepts. Automaton has 59422 states and 94161 transitions. Word has length 167 [2020-10-12 19:03:38,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:03:38,760 INFO L479 AbstractCegarLoop]: Abstraction has 59422 states and 94161 transitions. [2020-10-12 19:03:38,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:03:38,761 INFO L276 IsEmpty]: Start isEmpty. Operand 59422 states and 94161 transitions. [2020-10-12 19:03:38,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-12 19:03:38,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:03:38,772 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:03:38,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 19:03:38,772 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:03:38,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:03:38,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1338800626, now seen corresponding path program 1 times [2020-10-12 19:03:38,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:03:38,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1837825358] [2020-10-12 19:03:38,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:03:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:38,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:38,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:38,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:39,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:39,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:39,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:39,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:39,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:39,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:43,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:43,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 19:03:43,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 19:03:43,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 19:03:43,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:43,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 19:03:43,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 19:03:43,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 19:03:43,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:44,225 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 19:03:44,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:03:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:44,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:44,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:44,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:03:44,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:44,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 19:03:44,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:44,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:03:44,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:44,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:03:44,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:44,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:03:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:44,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:44,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:44,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 19:03:44,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:44,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-12 19:03:44,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:44,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:03:44,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:44,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 19:03:44,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:44,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 19:03:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:44,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:44,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:44,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:03:44,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:44,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 19:03:44,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:44,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:44,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:44,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:03:44,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:44,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 19:03:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:44,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:44,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:44,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:03:44,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:44,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:03:44,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:44,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:03:44,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:03:44,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 19:03:44,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:44,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 19:03:44,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:44,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:44,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:44,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:03:44,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:44,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:03:44,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:44,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:03:44,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:03:44,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 19:03:44,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:44,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 19:03:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:44,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:44,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:44,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 19:03:44,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:44,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:03:44,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:44,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:03:44,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:44,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 19:03:44,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:44,754 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2020-10-12 19:03:44,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-12 19:03:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:44,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:44,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:44,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:03:44,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:44,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:03:44,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:44,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:03:44,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:03:44,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 19:03:44,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:44,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-12 19:03:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:44,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:44,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:44,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:03:44,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:44,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:03:44,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:44,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:44,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 19:03:44,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 19:03:44,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:44,894 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 19:03:44,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1837825358] [2020-10-12 19:03:44,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:03:44,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 19:03:44,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553876985] [2020-10-12 19:03:44,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 19:03:44,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:03:44,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 19:03:44,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-10-12 19:03:44,896 INFO L87 Difference]: Start difference. First operand 59422 states and 94161 transitions. Second operand 16 states. [2020-10-12 19:03:45,705 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 258 [2020-10-12 19:03:48,329 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:03:48,720 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-12 19:03:49,120 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-12 19:03:49,554 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 129 [2020-10-12 19:03:49,869 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:03:50,242 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 129 [2020-10-12 19:03:50,626 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:03:50,822 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:03:51,171 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 19:03:51,489 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:03:51,932 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-12 19:03:52,208 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 127 [2020-10-12 19:03:52,393 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:03:52,562 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:03:53,464 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 129 [2020-10-12 19:03:53,667 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:03:53,857 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:03:54,343 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 19:03:54,671 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 19:03:54,884 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:03:55,698 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-12 19:03:56,083 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-12 19:03:56,483 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-12 19:03:56,887 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-12 19:03:57,360 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-12 19:03:57,807 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-12 19:03:59,499 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:03:59,742 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:03:59,920 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:04:00,089 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:04:00,270 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 129