/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 03:29:14,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 03:29:14,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 03:29:14,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 03:29:14,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 03:29:14,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 03:29:14,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 03:29:14,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 03:29:14,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 03:29:14,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 03:29:14,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 03:29:14,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 03:29:14,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 03:29:14,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 03:29:14,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 03:29:14,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 03:29:14,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 03:29:14,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 03:29:14,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 03:29:14,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 03:29:14,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 03:29:14,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 03:29:14,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 03:29:14,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 03:29:14,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 03:29:14,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 03:29:14,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 03:29:14,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 03:29:14,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 03:29:14,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 03:29:14,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 03:29:14,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 03:29:14,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 03:29:14,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 03:29:14,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 03:29:14,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 03:29:14,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 03:29:14,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 03:29:14,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 03:29:14,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 03:29:14,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 03:29:14,869 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 [2020-10-15 03:29:14,893 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 03:29:14,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 03:29:14,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 03:29:14,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 03:29:14,895 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 03:29:14,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 03:29:14,895 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 03:29:14,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 03:29:14,896 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 03:29:14,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 03:29:14,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 03:29:14,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 03:29:14,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 03:29:14,897 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 03:29:14,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 03:29:14,897 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 03:29:14,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 03:29:14,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 03:29:14,898 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 03:29:14,899 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 03:29:14,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 03:29:14,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:29:14,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 03:29:14,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 03:29:14,900 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 03:29:14,900 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 03:29:14,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 03:29:14,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 03:29:14,901 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 03:29:14,901 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 03:29:15,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 03:29:15,236 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 03:29:15,239 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 03:29:15,241 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 03:29:15,241 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 03:29:15,242 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 03:29:15,309 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a4e44a6b/7965d5d981244dfb9c604bd44cbbe80d/FLAG700f25a1c [2020-10-15 03:29:16,070 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 03:29:16,071 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 03:29:16,103 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a4e44a6b/7965d5d981244dfb9c604bd44cbbe80d/FLAG700f25a1c [2020-10-15 03:29:16,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a4e44a6b/7965d5d981244dfb9c604bd44cbbe80d [2020-10-15 03:29:16,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 03:29:16,178 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 03:29:16,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 03:29:16,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 03:29:16,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 03:29:16,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:29:16" (1/1) ... [2020-10-15 03:29:16,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@612194b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:16, skipping insertion in model container [2020-10-15 03:29:16,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:29:16" (1/1) ... [2020-10-15 03:29:16,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 03:29:16,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 03:29:17,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:29:17,718 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 03:29:18,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:29:18,526 INFO L208 MainTranslator]: Completed translation [2020-10-15 03:29:18,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:18 WrapperNode [2020-10-15 03:29:18,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 03:29:18,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 03:29:18,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 03:29:18,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 03:29:18,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:18" (1/1) ... [2020-10-15 03:29:18,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:18" (1/1) ... [2020-10-15 03:29:18,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:18" (1/1) ... [2020-10-15 03:29:18,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:18" (1/1) ... [2020-10-15 03:29:18,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:18" (1/1) ... [2020-10-15 03:29:18,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:18" (1/1) ... [2020-10-15 03:29:18,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:18" (1/1) ... [2020-10-15 03:29:18,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 03:29:18,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 03:29:18,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 03:29:18,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 03:29:18,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:18" (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 [2020-10-15 03:29:18,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 03:29:18,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 03:29:18,868 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 03:29:18,868 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 03:29:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 03:29:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 03:29:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 03:29:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 03:29:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 03:29:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 03:29:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 03:29:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 03:29:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 03:29:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 03:29:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 03:29:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 03:29:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 03:29:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-15 03:29:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-15 03:29:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 03:29:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 03:29:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 03:29:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 03:29:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 03:29:22,318 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 03:29:22,319 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 03:29:22,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:29:22 BoogieIcfgContainer [2020-10-15 03:29:22,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 03:29:22,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 03:29:22,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 03:29:22,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 03:29:22,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:29:16" (1/3) ... [2020-10-15 03:29:22,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@660ce417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:29:22, skipping insertion in model container [2020-10-15 03:29:22,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:18" (2/3) ... [2020-10-15 03:29:22,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@660ce417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:29:22, skipping insertion in model container [2020-10-15 03:29:22,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:29:22" (3/3) ... [2020-10-15 03:29:22,341 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 03:29:22,354 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 03:29:22,365 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2020-10-15 03:29:22,382 INFO L251 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2020-10-15 03:29:22,417 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 03:29:22,417 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 03:29:22,417 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 03:29:22,417 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 03:29:22,418 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 03:29:22,418 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 03:29:22,418 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 03:29:22,418 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 03:29:22,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states. [2020-10-15 03:29:22,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-15 03:29:22,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:29:22,498 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] [2020-10-15 03:29:22,499 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:29:22,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:29:22,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1865040373, now seen corresponding path program 1 times [2020-10-15 03:29:22,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:29:22,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760570914] [2020-10-15 03:29:22,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:29:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:23,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:23,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:23,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:23,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:24,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:24,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:24,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:24,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:26,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:26,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:27,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:27,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:27,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:28,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:28,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-15 03:29:28,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:29:28,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 03:29:28,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:28,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:28,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:29:28,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:29:28,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-15 03:29:28,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 03:29:29,632 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-15 03:29:29,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:29:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:29,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:29,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:29,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:29:29,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:29:29,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-15 03:29:29,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:29,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:29,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:29:29,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:29:29,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:29:29,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:29:29,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:29:29,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760570914] [2020-10-15 03:29:29,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:29:29,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:29:29,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565603179] [2020-10-15 03:29:29,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:29:29,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:29:29,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:29:29,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:29:29,812 INFO L87 Difference]: Start difference. First operand 1129 states. Second operand 6 states. [2020-10-15 03:29:30,983 WARN L193 SmtUtils]: Spent 988.00 ms on a formula simplification that was a NOOP. DAG size: 475 [2020-10-15 03:29:39,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:29:39,565 INFO L93 Difference]: Finished difference Result 1995 states and 3452 transitions. [2020-10-15 03:29:39,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:29:39,567 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2020-10-15 03:29:39,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:29:39,594 INFO L225 Difference]: With dead ends: 1995 [2020-10-15 03:29:39,594 INFO L226 Difference]: Without dead ends: 1202 [2020-10-15 03:29:39,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:29:39,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2020-10-15 03:29:39,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1122. [2020-10-15 03:29:39,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1122 states. [2020-10-15 03:29:39,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1465 transitions. [2020-10-15 03:29:39,718 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1465 transitions. Word has length 89 [2020-10-15 03:29:39,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:29:39,719 INFO L479 AbstractCegarLoop]: Abstraction has 1122 states and 1465 transitions. [2020-10-15 03:29:39,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:29:39,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1465 transitions. [2020-10-15 03:29:39,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-15 03:29:39,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:29:39,730 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] [2020-10-15 03:29:39,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 03:29:39,731 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:29:39,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:29:39,731 INFO L82 PathProgramCache]: Analyzing trace with hash 595195360, now seen corresponding path program 1 times [2020-10-15 03:29:39,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:29:39,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1002467198] [2020-10-15 03:29:39,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:29:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:39,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:39,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:40,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:40,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:40,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:40,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:41,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:41,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:41,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:41,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:43,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:44,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:44,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-15 03:29:44,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:29:44,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-15 03:29:44,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:44,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:44,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:29:44,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:29:44,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-15 03:29:44,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 03:29:46,101 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-15 03:29:46,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:29:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:46,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:46,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:46,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:29:46,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:29:46,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-15 03:29:46,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:46,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:46,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:29:46,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:29:46,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:29:46,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:29:46,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:29:46,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1002467198] [2020-10-15 03:29:46,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:29:46,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:29:46,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208791444] [2020-10-15 03:29:46,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:29:46,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:29:46,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:29:46,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:29:46,232 INFO L87 Difference]: Start difference. First operand 1122 states and 1465 transitions. Second operand 6 states. [2020-10-15 03:29:47,280 WARN L193 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 475 [2020-10-15 03:29:53,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:29:53,127 INFO L93 Difference]: Finished difference Result 2346 states and 3169 transitions. [2020-10-15 03:29:53,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:29:53,128 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2020-10-15 03:29:53,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:29:53,140 INFO L225 Difference]: With dead ends: 2346 [2020-10-15 03:29:53,140 INFO L226 Difference]: Without dead ends: 1444 [2020-10-15 03:29:53,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:29:53,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2020-10-15 03:29:53,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 1364. [2020-10-15 03:29:53,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1364 states. [2020-10-15 03:29:53,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1364 states to 1364 states and 1870 transitions. [2020-10-15 03:29:53,236 INFO L78 Accepts]: Start accepts. Automaton has 1364 states and 1870 transitions. Word has length 90 [2020-10-15 03:29:53,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:29:53,239 INFO L479 AbstractCegarLoop]: Abstraction has 1364 states and 1870 transitions. [2020-10-15 03:29:53,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:29:53,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1364 states and 1870 transitions. [2020-10-15 03:29:53,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-15 03:29:53,246 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:29:53,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:29:53,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 03:29:53,247 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:29:53,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:29:53,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1749355287, now seen corresponding path program 1 times [2020-10-15 03:29:53,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:29:53,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152927629] [2020-10-15 03:29:53,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:29:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:53,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:53,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:53,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:53,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:54,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:54,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:55,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:56,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:56,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:58,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:58,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-15 03:29:58,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:29:58,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-15 03:29:58,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:58,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:58,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:29:58,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:29:58,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-15 03:29:58,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:29:58,886 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 40 [2020-10-15 03:30:00,035 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-15 03:30:00,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:30:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:00,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:00,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:00,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:30:00,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:30:00,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 03:30:00,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:00,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:00,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:30:00,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:30:00,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:30:00,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:30:00,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:30:00,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1152927629] [2020-10-15 03:30:00,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:30:00,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:30:00,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141911705] [2020-10-15 03:30:00,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:30:00,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:30:00,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:30:00,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:30:00,160 INFO L87 Difference]: Start difference. First operand 1364 states and 1870 transitions. Second operand 8 states. [2020-10-15 03:30:00,369 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2020-10-15 03:30:03,171 WARN L193 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 520 DAG size of output: 517 [2020-10-15 03:30:04,298 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2020-10-15 03:30:05,398 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2020-10-15 03:30:07,880 WARN L193 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2020-10-15 03:30:19,035 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-15 03:30:19,428 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-15 03:30:21,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:30:21,201 INFO L93 Difference]: Finished difference Result 9698 states and 14113 transitions. [2020-10-15 03:30:21,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-15 03:30:21,202 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 91 [2020-10-15 03:30:21,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:30:21,247 INFO L225 Difference]: With dead ends: 9698 [2020-10-15 03:30:21,248 INFO L226 Difference]: Without dead ends: 8974 [2020-10-15 03:30:21,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=224, Invalid=768, Unknown=0, NotChecked=0, Total=992 [2020-10-15 03:30:21,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8974 states. [2020-10-15 03:30:21,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8974 to 1374. [2020-10-15 03:30:21,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1374 states. [2020-10-15 03:30:21,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1374 states to 1374 states and 1883 transitions. [2020-10-15 03:30:21,485 INFO L78 Accepts]: Start accepts. Automaton has 1374 states and 1883 transitions. Word has length 91 [2020-10-15 03:30:21,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:30:21,485 INFO L479 AbstractCegarLoop]: Abstraction has 1374 states and 1883 transitions. [2020-10-15 03:30:21,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:30:21,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1374 states and 1883 transitions. [2020-10-15 03:30:21,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-15 03:30:21,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:30:21,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:30:21,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 03:30:21,489 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:30:21,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:30:21,490 INFO L82 PathProgramCache]: Analyzing trace with hash -2067829691, now seen corresponding path program 1 times [2020-10-15 03:30:21,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:30:21,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [517529244] [2020-10-15 03:30:21,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:30:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:21,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:21,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:21,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:21,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:22,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:23,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:23,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:26,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:26,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-15 03:30:26,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 03:30:26,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 03:30:26,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:26,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:26,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:30:26,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:30:26,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-15 03:30:26,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:27,809 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-15 03:30:27,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:30:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:27,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:27,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:27,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:30:27,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:30:27,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-15 03:30:27,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:27,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:27,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:30:27,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:30:27,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:30:27,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:27,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:30:27,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [517529244] [2020-10-15 03:30:27,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:30:27,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:30:27,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90603103] [2020-10-15 03:30:27,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:30:27,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:30:27,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:30:27,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:30:27,942 INFO L87 Difference]: Start difference. First operand 1374 states and 1883 transitions. Second operand 6 states. [2020-10-15 03:30:29,018 WARN L193 SmtUtils]: Spent 994.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2020-10-15 03:30:34,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:30:34,173 INFO L93 Difference]: Finished difference Result 3246 states and 4563 transitions. [2020-10-15 03:30:34,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:30:34,174 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2020-10-15 03:30:34,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:30:34,183 INFO L225 Difference]: With dead ends: 3246 [2020-10-15 03:30:34,183 INFO L226 Difference]: Without dead ends: 2007 [2020-10-15 03:30:34,186 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:30:34,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2007 states. [2020-10-15 03:30:34,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2007 to 1927. [2020-10-15 03:30:34,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1927 states. [2020-10-15 03:30:34,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1927 states to 1927 states and 2751 transitions. [2020-10-15 03:30:34,390 INFO L78 Accepts]: Start accepts. Automaton has 1927 states and 2751 transitions. Word has length 91 [2020-10-15 03:30:34,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:30:34,390 INFO L479 AbstractCegarLoop]: Abstraction has 1927 states and 2751 transitions. [2020-10-15 03:30:34,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:30:34,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1927 states and 2751 transitions. [2020-10-15 03:30:34,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-15 03:30:34,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:30:34,394 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:30:34,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 03:30:34,395 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:30:34,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:30:34,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1284171599, now seen corresponding path program 1 times [2020-10-15 03:30:34,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:30:34,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [139553342] [2020-10-15 03:30:34,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:30:34,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:34,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:34,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:34,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:35,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:35,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:35,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:35,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:38,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:38,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:39,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:39,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-15 03:30:39,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:30:39,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 03:30:39,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:39,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:39,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:30:39,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-15 03:30:39,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 03:30:39,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:30:40,504 WARN L193 SmtUtils]: Spent 948.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-15 03:30:40,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:30:40,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:40,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:40,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:40,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:30:40,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:30:40,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:30:40,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:40,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:40,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:30:40,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:30:40,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:30:40,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:40,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:30:40,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [139553342] [2020-10-15 03:30:40,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:30:40,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:30:40,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760656469] [2020-10-15 03:30:40,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:30:40,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:30:40,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:30:40,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:30:40,620 INFO L87 Difference]: Start difference. First operand 1927 states and 2751 transitions. Second operand 6 states. [2020-10-15 03:30:41,608 WARN L193 SmtUtils]: Spent 932.00 ms on a formula simplification that was a NOOP. DAG size: 467 [2020-10-15 03:30:50,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:30:50,828 INFO L93 Difference]: Finished difference Result 10033 states and 14807 transitions. [2020-10-15 03:30:50,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 03:30:50,828 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2020-10-15 03:30:50,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:30:50,858 INFO L225 Difference]: With dead ends: 10033 [2020-10-15 03:30:50,858 INFO L226 Difference]: Without dead ends: 9143 [2020-10-15 03:30:50,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:30:50,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9143 states. [2020-10-15 03:30:51,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9143 to 5741. [2020-10-15 03:30:51,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5741 states. [2020-10-15 03:30:51,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5741 states to 5741 states and 8455 transitions. [2020-10-15 03:30:51,607 INFO L78 Accepts]: Start accepts. Automaton has 5741 states and 8455 transitions. Word has length 92 [2020-10-15 03:30:51,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:30:51,607 INFO L479 AbstractCegarLoop]: Abstraction has 5741 states and 8455 transitions. [2020-10-15 03:30:51,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:30:51,607 INFO L276 IsEmpty]: Start isEmpty. Operand 5741 states and 8455 transitions. [2020-10-15 03:30:51,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-15 03:30:51,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:30:51,615 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:30:51,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 03:30:51,615 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:30:51,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:30:51,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1602646003, now seen corresponding path program 1 times [2020-10-15 03:30:51,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:30:51,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1950659612] [2020-10-15 03:30:51,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:30:51,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:51,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:51,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:51,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:52,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:52,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:52,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:53,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:53,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:56,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:56,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-15 03:30:56,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:30:56,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 03:30:56,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:56,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:56,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:30:56,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:30:56,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-15 03:30:56,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:58,068 WARN L193 SmtUtils]: Spent 997.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-15 03:30:58,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:30:58,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:58,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:58,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:58,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:30:58,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:30:58,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 03:30:58,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:58,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:58,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:30:58,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:30:58,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:30:58,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:58,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:30:58,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1950659612] [2020-10-15 03:30:58,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:30:58,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:30:58,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848875726] [2020-10-15 03:30:58,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:30:58,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:30:58,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:30:58,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:30:58,194 INFO L87 Difference]: Start difference. First operand 5741 states and 8455 transitions. Second operand 8 states. [2020-10-15 03:30:59,476 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 496 [2020-10-15 03:31:11,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:31:11,803 INFO L93 Difference]: Finished difference Result 23431 states and 35142 transitions. [2020-10-15 03:31:11,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 03:31:11,803 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 92 [2020-10-15 03:31:11,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:31:11,855 INFO L225 Difference]: With dead ends: 23431 [2020-10-15 03:31:11,855 INFO L226 Difference]: Without dead ends: 20263 [2020-10-15 03:31:11,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-10-15 03:31:11,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20263 states. [2020-10-15 03:31:13,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20263 to 5769. [2020-10-15 03:31:13,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5769 states. [2020-10-15 03:31:13,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5769 states to 5769 states and 8489 transitions. [2020-10-15 03:31:13,236 INFO L78 Accepts]: Start accepts. Automaton has 5769 states and 8489 transitions. Word has length 92 [2020-10-15 03:31:13,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:31:13,236 INFO L479 AbstractCegarLoop]: Abstraction has 5769 states and 8489 transitions. [2020-10-15 03:31:13,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:31:13,237 INFO L276 IsEmpty]: Start isEmpty. Operand 5769 states and 8489 transitions. [2020-10-15 03:31:13,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-15 03:31:13,245 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:31:13,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:31:13,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 03:31:13,246 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:31:13,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:31:13,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1305758983, now seen corresponding path program 1 times [2020-10-15 03:31:13,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:31:13,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1106787645] [2020-10-15 03:31:13,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:31:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:31:13,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:13,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:13,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:13,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:13,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:13,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:14,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:15,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:15,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:15,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:15,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:15,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:16,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:17,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:17,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:18,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:31:18,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-15 03:31:18,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:31:18,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-15 03:31:18,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:31:18,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:31:18,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:31:18,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:31:18,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-15 03:31:18,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:31:19,823 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-15 03:31:19,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:31:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:31:19,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:19,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:31:19,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:31:19,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:31:19,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 03:31:19,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:31:19,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:31:19,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:31:19,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:31:19,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:31:19,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:31:19,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:31:19,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1106787645] [2020-10-15 03:31:19,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:31:19,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:31:19,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851788380] [2020-10-15 03:31:19,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:31:19,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:31:19,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:31:19,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:31:19,891 INFO L87 Difference]: Start difference. First operand 5769 states and 8489 transitions. Second operand 7 states. [2020-10-15 03:31:22,026 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 480 DAG size of output: 476 [2020-10-15 03:31:32,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:31:32,102 INFO L93 Difference]: Finished difference Result 27041 states and 40320 transitions. [2020-10-15 03:31:32,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 03:31:32,103 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2020-10-15 03:31:32,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:31:32,152 INFO L225 Difference]: With dead ends: 27041 [2020-10-15 03:31:32,152 INFO L226 Difference]: Without dead ends: 21443 [2020-10-15 03:31:32,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2020-10-15 03:31:32,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21443 states. [2020-10-15 03:31:33,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21443 to 5755. [2020-10-15 03:31:33,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5755 states. [2020-10-15 03:31:33,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5755 states to 5755 states and 8469 transitions. [2020-10-15 03:31:33,166 INFO L78 Accepts]: Start accepts. Automaton has 5755 states and 8469 transitions. Word has length 92 [2020-10-15 03:31:33,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:31:33,166 INFO L479 AbstractCegarLoop]: Abstraction has 5755 states and 8469 transitions. [2020-10-15 03:31:33,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:31:33,167 INFO L276 IsEmpty]: Start isEmpty. Operand 5755 states and 8469 transitions. [2020-10-15 03:31:33,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 03:31:33,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:31:33,174 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] [2020-10-15 03:31:33,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 03:31:33,174 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:31:33,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:31:33,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1566727399, now seen corresponding path program 1 times [2020-10-15 03:31:33,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:31:33,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1313660319] [2020-10-15 03:31:33,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:31:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:31:33,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:33,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:33,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:33,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:33,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:33,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:34,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:35,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:35,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:37,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:37,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:37,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:38,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:31:38,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 03:31:38,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 03:31:38,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 03:31:38,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:31:38,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:31:38,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:31:38,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:31:38,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-15 03:31:38,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:31:39,472 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-15 03:31:39,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:31:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:31:39,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:39,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:31:39,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:31:39,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:31:39,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 03:31:39,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:31:39,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:31:39,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:31:39,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:31:39,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:31:39,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:31:39,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:31:39,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1313660319] [2020-10-15 03:31:39,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:31:39,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:31:39,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019019486] [2020-10-15 03:31:39,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:31:39,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:31:39,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:31:39,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:31:39,567 INFO L87 Difference]: Start difference. First operand 5755 states and 8469 transitions. Second operand 8 states. [2020-10-15 03:31:40,826 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 486 [2020-10-15 03:31:54,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:31:54,305 INFO L93 Difference]: Finished difference Result 13131 states and 19435 transitions. [2020-10-15 03:31:54,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 03:31:54,306 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 93 [2020-10-15 03:31:54,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:31:54,330 INFO L225 Difference]: With dead ends: 13131 [2020-10-15 03:31:54,330 INFO L226 Difference]: Without dead ends: 10783 [2020-10-15 03:31:54,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-10-15 03:31:54,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10783 states. [2020-10-15 03:31:55,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10783 to 6539. [2020-10-15 03:31:55,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6539 states. [2020-10-15 03:31:55,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6539 states to 6539 states and 9589 transitions. [2020-10-15 03:31:55,325 INFO L78 Accepts]: Start accepts. Automaton has 6539 states and 9589 transitions. Word has length 93 [2020-10-15 03:31:55,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:31:55,325 INFO L479 AbstractCegarLoop]: Abstraction has 6539 states and 9589 transitions. [2020-10-15 03:31:55,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:31:55,326 INFO L276 IsEmpty]: Start isEmpty. Operand 6539 states and 9589 transitions. [2020-10-15 03:31:55,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 03:31:55,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:31:55,333 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] [2020-10-15 03:31:55,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 03:31:55,333 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:31:55,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:31:55,334 INFO L82 PathProgramCache]: Analyzing trace with hash -820441115, now seen corresponding path program 1 times [2020-10-15 03:31:55,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:31:55,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690439784] [2020-10-15 03:31:55,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:31:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:31:55,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:55,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:55,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:55,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:56,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:56,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:56,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:56,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:56,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:57,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:58,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:31:59,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:00,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:32:00,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 03:32:00,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 03:32:00,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 03:32:00,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:32:00,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:32:00,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:32:00,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:32:00,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-15 03:32:00,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:32:01,514 WARN L193 SmtUtils]: Spent 980.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-15 03:32:01,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:32:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:32:01,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:01,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:32:01,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:32:01,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:32:01,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:32:01,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:32:01,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:32:01,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:32:01,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:32:01,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:32:01,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:32:01,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:32:01,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1690439784] [2020-10-15 03:32:01,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:32:01,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:32:01,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458419718] [2020-10-15 03:32:01,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:32:01,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:32:01,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:32:01,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:32:01,573 INFO L87 Difference]: Start difference. First operand 6539 states and 9589 transitions. Second operand 9 states. [2020-10-15 03:32:02,658 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 473 [2020-10-15 03:32:09,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:32:09,549 INFO L93 Difference]: Finished difference Result 18888 states and 28642 transitions. [2020-10-15 03:32:09,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 03:32:09,550 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-10-15 03:32:09,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:32:09,576 INFO L225 Difference]: With dead ends: 18888 [2020-10-15 03:32:09,576 INFO L226 Difference]: Without dead ends: 15700 [2020-10-15 03:32:09,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:32:09,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15700 states. [2020-10-15 03:32:10,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15700 to 6183. [2020-10-15 03:32:10,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6183 states. [2020-10-15 03:32:10,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6183 states to 6183 states and 9093 transitions. [2020-10-15 03:32:10,479 INFO L78 Accepts]: Start accepts. Automaton has 6183 states and 9093 transitions. Word has length 93 [2020-10-15 03:32:10,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:32:10,480 INFO L479 AbstractCegarLoop]: Abstraction has 6183 states and 9093 transitions. [2020-10-15 03:32:10,480 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:32:10,480 INFO L276 IsEmpty]: Start isEmpty. Operand 6183 states and 9093 transitions. [2020-10-15 03:32:10,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 03:32:10,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:32:10,486 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] [2020-10-15 03:32:10,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 03:32:10,486 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:32:10,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:32:10,487 INFO L82 PathProgramCache]: Analyzing trace with hash 699346564, now seen corresponding path program 1 times [2020-10-15 03:32:10,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:32:10,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [914007447] [2020-10-15 03:32:10,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:32:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:32:10,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:10,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:10,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:10,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:11,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:11,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:11,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:12,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:13,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:15,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:32:15,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 03:32:15,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:32:15,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-15 03:32:15,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:32:15,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:32:15,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:32:15,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:32:15,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 03:32:15,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:32:16,753 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-15 03:32:16,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:32:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:32:16,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:16,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:32:16,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:32:16,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:32:16,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 03:32:16,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:32:16,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:32:16,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:32:16,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:32:16,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:32:16,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:32:16,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:32:16,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [914007447] [2020-10-15 03:32:16,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:32:16,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:32:16,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637545446] [2020-10-15 03:32:16,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:32:16,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:32:16,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:32:16,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:32:16,823 INFO L87 Difference]: Start difference. First operand 6183 states and 9093 transitions. Second operand 7 states. [2020-10-15 03:32:17,925 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 476 [2020-10-15 03:32:26,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:32:26,380 INFO L93 Difference]: Finished difference Result 20122 states and 30171 transitions. [2020-10-15 03:32:26,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:32:26,380 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2020-10-15 03:32:26,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:32:26,411 INFO L225 Difference]: With dead ends: 20122 [2020-10-15 03:32:26,411 INFO L226 Difference]: Without dead ends: 16321 [2020-10-15 03:32:26,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:32:26,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16321 states. [2020-10-15 03:32:28,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16321 to 11459. [2020-10-15 03:32:28,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11459 states. [2020-10-15 03:32:28,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11459 states to 11459 states and 16963 transitions. [2020-10-15 03:32:28,449 INFO L78 Accepts]: Start accepts. Automaton has 11459 states and 16963 transitions. Word has length 93 [2020-10-15 03:32:28,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:32:28,449 INFO L479 AbstractCegarLoop]: Abstraction has 11459 states and 16963 transitions. [2020-10-15 03:32:28,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:32:28,450 INFO L276 IsEmpty]: Start isEmpty. Operand 11459 states and 16963 transitions. [2020-10-15 03:32:28,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 03:32:28,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:32:28,455 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] [2020-10-15 03:32:28,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 03:32:28,456 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:32:28,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:32:28,456 INFO L82 PathProgramCache]: Analyzing trace with hash -687215746, now seen corresponding path program 1 times [2020-10-15 03:32:28,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:32:28,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178143698] [2020-10-15 03:32:28,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:32:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:32:28,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:28,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:28,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:28,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:29,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:29,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:29,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:30,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:31,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:31,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:32,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:32,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:32,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:32,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:33,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:33,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:32:33,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 03:32:33,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:32:33,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 03:32:33,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:32:33,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:32:33,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:32:33,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:32:33,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-15 03:32:33,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:32:34,697 WARN L193 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-15 03:32:34,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:32:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:32:34,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:34,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:32:34,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:32:34,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:32:34,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 03:32:34,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:32:34,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:32:34,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:32:34,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:32:34,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:32:34,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:32:34,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:32:34,772 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178143698] [2020-10-15 03:32:34,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:32:34,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:32:34,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530621498] [2020-10-15 03:32:34,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:32:34,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:32:34,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:32:34,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:32:34,774 INFO L87 Difference]: Start difference. First operand 11459 states and 16963 transitions. Second operand 8 states. [2020-10-15 03:32:35,891 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 479 [2020-10-15 03:32:42,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:32:42,626 INFO L93 Difference]: Finished difference Result 20829 states and 31367 transitions. [2020-10-15 03:32:42,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:32:42,627 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 93 [2020-10-15 03:32:42,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:32:42,646 INFO L225 Difference]: With dead ends: 20829 [2020-10-15 03:32:42,647 INFO L226 Difference]: Without dead ends: 14833 [2020-10-15 03:32:42,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:32:42,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14833 states. [2020-10-15 03:32:44,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14833 to 9993. [2020-10-15 03:32:44,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9993 states. [2020-10-15 03:32:44,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9993 states to 9993 states and 14929 transitions. [2020-10-15 03:32:44,466 INFO L78 Accepts]: Start accepts. Automaton has 9993 states and 14929 transitions. Word has length 93 [2020-10-15 03:32:44,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:32:44,467 INFO L479 AbstractCegarLoop]: Abstraction has 9993 states and 14929 transitions. [2020-10-15 03:32:44,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:32:44,467 INFO L276 IsEmpty]: Start isEmpty. Operand 9993 states and 14929 transitions. [2020-10-15 03:32:44,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-15 03:32:44,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:32:44,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:32:44,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 03:32:44,471 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:32:44,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:32:44,471 INFO L82 PathProgramCache]: Analyzing trace with hash -2006687607, now seen corresponding path program 1 times [2020-10-15 03:32:44,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:32:44,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978721554] [2020-10-15 03:32:44,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:32:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:32:44,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:44,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:44,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:45,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:45,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:45,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:45,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:45,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:45,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:45,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:45,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:45,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:48,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:48,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:49,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:32:49,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-15 03:32:49,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:32:49,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 03:32:49,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:32:49,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:32:49,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:32:49,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:32:49,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-15 03:32:49,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:32:50,619 WARN L193 SmtUtils]: Spent 986.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-15 03:32:50,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:32:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:32:50,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:32:50,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:32:50,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:32:50,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:32:50,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 03:32:50,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:32:50,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:32:50,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:32:50,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:32:50,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:32:50,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:32:50,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:32:50,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [978721554] [2020-10-15 03:32:50,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:32:50,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:32:50,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815470813] [2020-10-15 03:32:50,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:32:50,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:32:50,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:32:50,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:32:50,699 INFO L87 Difference]: Start difference. First operand 9993 states and 14929 transitions. Second operand 9 states. [2020-10-15 03:32:51,793 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 471