/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 19:37:13,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 19:37:13,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 19:37:13,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 19:37:13,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 19:37:13,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 19:37:13,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 19:37:13,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 19:37:13,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 19:37:13,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 19:37:13,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 19:37:13,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 19:37:13,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 19:37:13,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 19:37:13,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 19:37:13,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 19:37:13,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 19:37:13,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 19:37:13,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 19:37:13,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 19:37:13,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 19:37:13,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 19:37:13,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 19:37:13,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 19:37:13,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 19:37:13,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 19:37:13,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 19:37:13,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 19:37:13,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 19:37:13,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 19:37:13,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 19:37:13,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 19:37:13,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 19:37:13,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 19:37:13,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 19:37:13,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 19:37:13,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 19:37:13,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 19:37:13,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 19:37:13,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 19:37:13,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 19:37:13,848 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 19:37:13,885 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 19:37:13,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 19:37:13,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 19:37:13,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 19:37:13,887 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 19:37:13,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 19:37:13,888 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 19:37:13,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 19:37:13,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 19:37:13,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 19:37:13,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 19:37:13,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 19:37:13,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 19:37:13,890 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 19:37:13,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 19:37:13,891 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 19:37:13,891 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 19:37:13,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 19:37:13,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 19:37:13,891 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 19:37:13,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 19:37:13,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 19:37:13,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 19:37:13,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 19:37:13,893 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 19:37:13,893 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 19:37:13,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 19:37:13,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 19:37:13,893 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 19:37:13,893 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 19:37:14,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 19:37:14,181 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 19:37:14,185 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 19:37:14,186 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 19:37:14,187 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 19:37:14,188 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-12 19:37:14,245 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4cb8f96bf/83a7942ddfc7416e99ff57dc9cacf51f/FLAG85cfa5d92 [2020-10-12 19:37:14,938 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 19:37:14,938 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-12 19:37:14,964 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4cb8f96bf/83a7942ddfc7416e99ff57dc9cacf51f/FLAG85cfa5d92 [2020-10-12 19:37:15,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4cb8f96bf/83a7942ddfc7416e99ff57dc9cacf51f [2020-10-12 19:37:15,089 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 19:37:15,090 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 19:37:15,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 19:37:15,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 19:37:15,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 19:37:15,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:37:15" (1/1) ... [2020-10-12 19:37:15,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79e7f777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:15, skipping insertion in model container [2020-10-12 19:37:15,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:37:15" (1/1) ... [2020-10-12 19:37:15,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 19:37:15,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 19:37:16,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:37:16,070 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 19:37:16,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:37:16,599 INFO L208 MainTranslator]: Completed translation [2020-10-12 19:37:16,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:16 WrapperNode [2020-10-12 19:37:16,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 19:37:16,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 19:37:16,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 19:37:16,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 19:37:16,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:16" (1/1) ... [2020-10-12 19:37:16,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:16" (1/1) ... [2020-10-12 19:37:16,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:16" (1/1) ... [2020-10-12 19:37:16,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:16" (1/1) ... [2020-10-12 19:37:16,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:16" (1/1) ... [2020-10-12 19:37:16,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:16" (1/1) ... [2020-10-12 19:37:16,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:16" (1/1) ... [2020-10-12 19:37:16,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 19:37:16,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 19:37:16,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 19:37:16,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 19:37:16,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 19:37:16,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 19:37:16,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 19:37:16,894 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 19:37:16,894 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 19:37:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 19:37:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 19:37:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 19:37:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-12 19:37:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 19:37:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 19:37:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 19:37:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 19:37:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 19:37:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 19:37:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 19:37:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 19:37:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 19:37:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-12 19:37:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 19:37:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 19:37:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 19:37:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 19:37:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 19:37:18,957 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 19:37:18,958 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 19:37:18,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:37:18 BoogieIcfgContainer [2020-10-12 19:37:18,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 19:37:18,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 19:37:18,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 19:37:18,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 19:37:18,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:37:15" (1/3) ... [2020-10-12 19:37:18,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@712a2d35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:37:18, skipping insertion in model container [2020-10-12 19:37:18,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:16" (2/3) ... [2020-10-12 19:37:18,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@712a2d35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:37:18, skipping insertion in model container [2020-10-12 19:37:18,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:37:18" (3/3) ... [2020-10-12 19:37:19,001 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-12 19:37:19,011 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 19:37:19,020 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-10-12 19:37:19,034 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-10-12 19:37:19,060 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 19:37:19,060 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 19:37:19,060 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 19:37:19,060 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 19:37:19,060 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 19:37:19,061 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 19:37:19,061 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 19:37:19,061 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 19:37:19,106 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states. [2020-10-12 19:37:19,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-12 19:37:19,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:37:19,131 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] [2020-10-12 19:37:19,132 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:37:19,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:37:19,138 INFO L82 PathProgramCache]: Analyzing trace with hash 400936191, now seen corresponding path program 1 times [2020-10-12 19:37:19,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:37:19,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702199070] [2020-10-12 19:37:19,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:37:19,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:37:19,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:19,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:20,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:20,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:20,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:20,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:20,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:21,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:21,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:21,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:22,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:24,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:37:24,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 19:37:24,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 19:37:24,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-12 19:37:24,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:37:24,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:37:24,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 19:37:24,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 19:37:24,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-12 19:37:25,468 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:37:25,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:37:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:37:25,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:25,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:37:25,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:37:25,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:37:25,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-12 19:37:25,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:37:25,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:37:25,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:37:25,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:37:25,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:37:25,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:37:25,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702199070] [2020-10-12 19:37:25,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:37:25,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:37:25,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927052784] [2020-10-12 19:37:25,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:37:25,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:37:25,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:37:25,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:37:25,619 INFO L87 Difference]: Start difference. First operand 631 states. Second operand 7 states. [2020-10-12 19:37:26,277 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-12 19:37:33,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:37:33,814 INFO L93 Difference]: Finished difference Result 2086 states and 3457 transitions. [2020-10-12 19:37:33,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:37:33,819 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 75 [2020-10-12 19:37:33,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:37:33,848 INFO L225 Difference]: With dead ends: 2086 [2020-10-12 19:37:33,849 INFO L226 Difference]: Without dead ends: 1682 [2020-10-12 19:37:33,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:37:33,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2020-10-12 19:37:34,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1016. [2020-10-12 19:37:34,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1016 states. [2020-10-12 19:37:34,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1374 transitions. [2020-10-12 19:37:34,029 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1374 transitions. Word has length 75 [2020-10-12 19:37:34,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:37:34,030 INFO L479 AbstractCegarLoop]: Abstraction has 1016 states and 1374 transitions. [2020-10-12 19:37:34,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:37:34,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1374 transitions. [2020-10-12 19:37:34,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-12 19:37:34,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:37:34,044 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] [2020-10-12 19:37:34,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 19:37:34,045 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:37:34,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:37:34,046 INFO L82 PathProgramCache]: Analyzing trace with hash 872860985, now seen corresponding path program 1 times [2020-10-12 19:37:34,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:37:34,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1564081478] [2020-10-12 19:37:34,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:37:34,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:37:34,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:34,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:34,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:34,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:34,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:35,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:35,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:36,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:39,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:37:39,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 19:37:39,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:37:39,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 19:37:39,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:37:39,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:37:39,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 19:37:39,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 19:37:39,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-12 19:37:40,015 WARN L193 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:37:40,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:37:40,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:37:40,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:40,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:37:40,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:37:40,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:37:40,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 19:37:40,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:37:40,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:37:40,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:37:40,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:37:40,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:37:40,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:37:40,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1564081478] [2020-10-12 19:37:40,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:37:40,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:37:40,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974779947] [2020-10-12 19:37:40,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:37:40,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:37:40,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:37:40,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:37:40,103 INFO L87 Difference]: Start difference. First operand 1016 states and 1374 transitions. Second operand 7 states. [2020-10-12 19:37:40,775 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-12 19:37:44,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:37:44,515 INFO L93 Difference]: Finished difference Result 4506 states and 6467 transitions. [2020-10-12 19:37:44,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:37:44,516 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 76 [2020-10-12 19:37:44,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:37:44,537 INFO L225 Difference]: With dead ends: 4506 [2020-10-12 19:37:44,537 INFO L226 Difference]: Without dead ends: 3693 [2020-10-12 19:37:44,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:37:44,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3693 states. [2020-10-12 19:37:44,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3693 to 2178. [2020-10-12 19:37:44,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2178 states. [2020-10-12 19:37:44,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2178 states to 2178 states and 3142 transitions. [2020-10-12 19:37:44,700 INFO L78 Accepts]: Start accepts. Automaton has 2178 states and 3142 transitions. Word has length 76 [2020-10-12 19:37:44,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:37:44,701 INFO L479 AbstractCegarLoop]: Abstraction has 2178 states and 3142 transitions. [2020-10-12 19:37:44,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:37:44,701 INFO L276 IsEmpty]: Start isEmpty. Operand 2178 states and 3142 transitions. [2020-10-12 19:37:44,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 19:37:44,708 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:37:44,708 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] [2020-10-12 19:37:44,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 19:37:44,709 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:37:44,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:37:44,709 INFO L82 PathProgramCache]: Analyzing trace with hash -569516735, now seen corresponding path program 1 times [2020-10-12 19:37:44,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:37:44,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1286835372] [2020-10-12 19:37:44,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:37:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:37:44,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:44,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:44,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:45,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:45,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:45,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:46,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:46,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:49,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:37:49,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 19:37:49,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:37:49,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 19:37:49,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:37:49,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 19:37:49,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:37:49,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 19:37:49,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:37:50,431 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:37:50,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:37:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:37:50,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:50,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:37:50,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:37:50,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:37:50,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 19:37:50,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:37:50,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:37:50,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:37:50,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:37:50,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:37:50,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:37:50,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1286835372] [2020-10-12 19:37:50,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:37:50,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 19:37:50,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516345012] [2020-10-12 19:37:50,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 19:37:50,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:37:50,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 19:37:50,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-12 19:37:50,501 INFO L87 Difference]: Start difference. First operand 2178 states and 3142 transitions. Second operand 10 states. [2020-10-12 19:37:51,044 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 308 [2020-10-12 19:37:55,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:37:55,619 INFO L93 Difference]: Finished difference Result 9869 states and 14561 transitions. [2020-10-12 19:37:55,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 19:37:55,623 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 77 [2020-10-12 19:37:55,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:37:55,670 INFO L225 Difference]: With dead ends: 9869 [2020-10-12 19:37:55,670 INFO L226 Difference]: Without dead ends: 8922 [2020-10-12 19:37:55,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2020-10-12 19:37:55,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8922 states. [2020-10-12 19:37:55,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8922 to 3186. [2020-10-12 19:37:55,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3186 states. [2020-10-12 19:37:55,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 4637 transitions. [2020-10-12 19:37:55,983 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 4637 transitions. Word has length 77 [2020-10-12 19:37:55,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:37:55,988 INFO L479 AbstractCegarLoop]: Abstraction has 3186 states and 4637 transitions. [2020-10-12 19:37:55,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 19:37:55,989 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 4637 transitions. [2020-10-12 19:37:55,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 19:37:55,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:37:55,996 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] [2020-10-12 19:37:55,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 19:37:55,996 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:37:55,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:37:55,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1402679853, now seen corresponding path program 1 times [2020-10-12 19:37:55,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:37:55,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039914316] [2020-10-12 19:37:55,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:37:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:37:56,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:56,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:56,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:56,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:56,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:56,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:59,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:59,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:00,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:01,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:38:01,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 19:38:01,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 19:38:01,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-12 19:38:01,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:38:01,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 19:38:01,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-12 19:38:01,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 19:38:01,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:38:01,796 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:38:01,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:38:01,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:38:01,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:01,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:38:01,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:38:01,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:38:01,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 19:38:01,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:38:01,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:38:01,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:38:01,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:38:01,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:38:01,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:38:01,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039914316] [2020-10-12 19:38:01,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:38:01,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 19:38:01,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878535431] [2020-10-12 19:38:01,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 19:38:01,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:38:01,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 19:38:01,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-12 19:38:01,860 INFO L87 Difference]: Start difference. First operand 3186 states and 4637 transitions. Second operand 9 states. [2020-10-12 19:38:02,412 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-12 19:38:06,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:38:06,258 INFO L93 Difference]: Finished difference Result 11118 states and 16800 transitions. [2020-10-12 19:38:06,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 19:38:06,259 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 77 [2020-10-12 19:38:06,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:38:06,300 INFO L225 Difference]: With dead ends: 11118 [2020-10-12 19:38:06,301 INFO L226 Difference]: Without dead ends: 9527 [2020-10-12 19:38:06,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-10-12 19:38:06,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9527 states. [2020-10-12 19:38:06,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9527 to 3198. [2020-10-12 19:38:06,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3198 states. [2020-10-12 19:38:06,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3198 states to 3198 states and 4634 transitions. [2020-10-12 19:38:06,594 INFO L78 Accepts]: Start accepts. Automaton has 3198 states and 4634 transitions. Word has length 77 [2020-10-12 19:38:06,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:38:06,594 INFO L479 AbstractCegarLoop]: Abstraction has 3198 states and 4634 transitions. [2020-10-12 19:38:06,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 19:38:06,595 INFO L276 IsEmpty]: Start isEmpty. Operand 3198 states and 4634 transitions. [2020-10-12 19:38:06,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 19:38:06,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:38:06,601 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] [2020-10-12 19:38:06,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 19:38:06,602 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:38:06,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:38:06,602 INFO L82 PathProgramCache]: Analyzing trace with hash 405353890, now seen corresponding path program 1 times [2020-10-12 19:38:06,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:38:06,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211286275] [2020-10-12 19:38:06,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:38:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:38:06,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:06,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:06,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:06,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:07,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:07,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:08,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:11,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:38:11,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 19:38:11,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 19:38:11,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 19:38:11,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:38:11,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 19:38:11,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:38:11,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-12 19:38:11,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:38:12,315 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:38:12,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:38:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:38:12,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:12,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:38:12,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:38:12,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:38:12,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 19:38:12,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:38:12,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:38:12,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:38:12,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:38:12,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:38:12,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:38:12,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [211286275] [2020-10-12 19:38:12,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:38:12,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 19:38:12,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816927708] [2020-10-12 19:38:12,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 19:38:12,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:38:12,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 19:38:12,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-12 19:38:12,389 INFO L87 Difference]: Start difference. First operand 3198 states and 4634 transitions. Second operand 9 states. [2020-10-12 19:38:13,017 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-12 19:38:16,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:38:16,645 INFO L93 Difference]: Finished difference Result 7884 states and 11673 transitions. [2020-10-12 19:38:16,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 19:38:16,645 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 77 [2020-10-12 19:38:16,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:38:16,675 INFO L225 Difference]: With dead ends: 7884 [2020-10-12 19:38:16,676 INFO L226 Difference]: Without dead ends: 6526 [2020-10-12 19:38:16,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-10-12 19:38:16,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6526 states. [2020-10-12 19:38:16,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6526 to 3090. [2020-10-12 19:38:16,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3090 states. [2020-10-12 19:38:16,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3090 states to 3090 states and 4455 transitions. [2020-10-12 19:38:16,970 INFO L78 Accepts]: Start accepts. Automaton has 3090 states and 4455 transitions. Word has length 77 [2020-10-12 19:38:16,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:38:16,972 INFO L479 AbstractCegarLoop]: Abstraction has 3090 states and 4455 transitions. [2020-10-12 19:38:16,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 19:38:16,973 INFO L276 IsEmpty]: Start isEmpty. Operand 3090 states and 4455 transitions. [2020-10-12 19:38:16,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 19:38:16,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:38:16,978 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] [2020-10-12 19:38:16,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 19:38:16,979 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:38:16,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:38:16,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1377489988, now seen corresponding path program 1 times [2020-10-12 19:38:16,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:38:16,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771510130] [2020-10-12 19:38:16,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:38:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:38:17,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:17,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:17,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:17,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:17,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:18,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:18,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:18,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:18,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:19,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:19,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:21,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:22,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:38:22,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 19:38:22,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 19:38:22,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 19:38:22,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:38:22,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:38:22,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:38:22,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 19:38:22,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:38:22,931 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:38:22,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:38:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:38:22,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:22,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:38:22,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:38:22,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:38:22,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 19:38:22,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:38:22,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:38:22,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:38:22,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:38:22,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:38:23,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:38:23,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771510130] [2020-10-12 19:38:23,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:38:23,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:38:23,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830591118] [2020-10-12 19:38:23,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:38:23,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:38:23,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:38:23,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:38:23,016 INFO L87 Difference]: Start difference. First operand 3090 states and 4455 transitions. Second operand 12 states. [2020-10-12 19:38:23,680 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-12 19:38:28,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:38:28,281 INFO L93 Difference]: Finished difference Result 6006 states and 8779 transitions. [2020-10-12 19:38:28,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 19:38:28,281 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 77 [2020-10-12 19:38:28,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:38:28,289 INFO L225 Difference]: With dead ends: 6006 [2020-10-12 19:38:28,290 INFO L226 Difference]: Without dead ends: 3676 [2020-10-12 19:38:28,297 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2020-10-12 19:38:28,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3676 states. [2020-10-12 19:38:28,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3676 to 2015. [2020-10-12 19:38:28,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2015 states. [2020-10-12 19:38:28,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 2857 transitions. [2020-10-12 19:38:28,458 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 2857 transitions. Word has length 77 [2020-10-12 19:38:28,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:38:28,458 INFO L479 AbstractCegarLoop]: Abstraction has 2015 states and 2857 transitions. [2020-10-12 19:38:28,459 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:38:28,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 2857 transitions. [2020-10-12 19:38:28,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 19:38:28,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:38:28,462 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] [2020-10-12 19:38:28,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 19:38:28,462 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:38:28,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:38:28,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1899738779, now seen corresponding path program 1 times [2020-10-12 19:38:28,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:38:28,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [287386114] [2020-10-12 19:38:28,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:38:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:38:28,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:28,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:28,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:28,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:28,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:29,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:29,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:29,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:30,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:33,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:38:33,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 19:38:33,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 19:38:33,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 19:38:33,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:38:33,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:38:33,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:38:33,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 19:38:33,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:38:34,397 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:38:34,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:38:34,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:38:34,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:34,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:38:34,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:38:34,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:38:34,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 19:38:34,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:38:34,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:38:34,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:38:34,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:38:34,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:38:34,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:38:34,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [287386114] [2020-10-12 19:38:34,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:38:34,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:38:34,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641522520] [2020-10-12 19:38:34,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:38:34,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:38:34,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:38:34,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:38:34,463 INFO L87 Difference]: Start difference. First operand 2015 states and 2857 transitions. Second operand 12 states. [2020-10-12 19:38:35,205 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 325 [2020-10-12 19:38:44,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:38:44,791 INFO L93 Difference]: Finished difference Result 11903 states and 17668 transitions. [2020-10-12 19:38:44,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-12 19:38:44,792 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 77 [2020-10-12 19:38:44,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:38:44,816 INFO L225 Difference]: With dead ends: 11903 [2020-10-12 19:38:44,817 INFO L226 Difference]: Without dead ends: 10452 [2020-10-12 19:38:44,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2020-10-12 19:38:44,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10452 states. [2020-10-12 19:38:45,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10452 to 4390. [2020-10-12 19:38:45,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4390 states. [2020-10-12 19:38:45,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4390 states to 4390 states and 6429 transitions. [2020-10-12 19:38:45,381 INFO L78 Accepts]: Start accepts. Automaton has 4390 states and 6429 transitions. Word has length 77 [2020-10-12 19:38:45,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:38:45,381 INFO L479 AbstractCegarLoop]: Abstraction has 4390 states and 6429 transitions. [2020-10-12 19:38:45,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:38:45,381 INFO L276 IsEmpty]: Start isEmpty. Operand 4390 states and 6429 transitions. [2020-10-12 19:38:45,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-12 19:38:45,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:38:45,386 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] [2020-10-12 19:38:45,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 19:38:45,387 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:38:45,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:38:45,387 INFO L82 PathProgramCache]: Analyzing trace with hash -261089098, now seen corresponding path program 1 times [2020-10-12 19:38:45,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:38:45,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1262170707] [2020-10-12 19:38:45,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:38:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:38:45,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:45,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:45,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:45,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:46,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:46,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:46,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:48,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:49,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:49,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:49,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:49,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:49,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:49,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:49,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:50,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:38:50,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 19:38:50,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-12 19:38:50,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 19:38:50,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:38:50,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 19:38:50,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:38:50,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 19:38:50,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:38:51,526 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:38:51,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:38:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:38:51,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:51,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:38:51,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:38:51,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:38:51,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:38:51,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:38:51,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:38:51,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:38:51,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:38:51,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:38:51,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:38:51,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1262170707] [2020-10-12 19:38:51,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:38:51,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 19:38:51,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749641903] [2020-10-12 19:38:51,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 19:38:51,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:38:51,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 19:38:51,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:38:51,582 INFO L87 Difference]: Start difference. First operand 4390 states and 6429 transitions. Second operand 14 states. [2020-10-12 19:38:52,991 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 337 DAG size of output: 330 [2020-10-12 19:38:53,545 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2020-10-12 19:38:53,772 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2020-10-12 19:38:54,084 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2020-10-12 19:38:54,331 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-10-12 19:38:55,132 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-10-12 19:38:55,351 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-10-12 19:38:56,204 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-10-12 19:38:59,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:38:59,343 INFO L93 Difference]: Finished difference Result 7655 states and 11314 transitions. [2020-10-12 19:38:59,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 19:38:59,344 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 78 [2020-10-12 19:38:59,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:38:59,356 INFO L225 Difference]: With dead ends: 7655 [2020-10-12 19:38:59,356 INFO L226 Difference]: Without dead ends: 5479 [2020-10-12 19:38:59,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2020-10-12 19:38:59,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5479 states. [2020-10-12 19:38:59,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5479 to 4419. [2020-10-12 19:38:59,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4419 states. [2020-10-12 19:38:59,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4419 states to 4419 states and 6475 transitions. [2020-10-12 19:38:59,928 INFO L78 Accepts]: Start accepts. Automaton has 4419 states and 6475 transitions. Word has length 78 [2020-10-12 19:38:59,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:38:59,928 INFO L479 AbstractCegarLoop]: Abstraction has 4419 states and 6475 transitions. [2020-10-12 19:38:59,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 19:38:59,928 INFO L276 IsEmpty]: Start isEmpty. Operand 4419 states and 6475 transitions. [2020-10-12 19:38:59,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-12 19:38:59,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:38:59,938 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] [2020-10-12 19:38:59,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 19:38:59,938 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:38:59,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:38:59,939 INFO L82 PathProgramCache]: Analyzing trace with hash 694279801, now seen corresponding path program 1 times [2020-10-12 19:38:59,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:38:59,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941432183] [2020-10-12 19:38:59,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:38:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:38:59,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:00,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:00,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:00,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:00,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:00,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:00,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:00,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:02,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:02,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:02,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:04,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:39:04,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 19:39:04,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 19:39:04,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 19:39:04,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:39:04,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 19:39:04,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:39:04,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 19:39:04,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:39:05,904 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:39:05,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:39:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:39:05,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:05,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:39:05,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:39:05,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:39:05,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 19:39:05,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:39:05,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:39:05,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:39:05,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:39:05,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:39:05,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:39:05,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [941432183] [2020-10-12 19:39:05,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:39:05,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:39:05,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363193735] [2020-10-12 19:39:05,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:39:05,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:39:05,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:39:05,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:39:05,978 INFO L87 Difference]: Start difference. First operand 4419 states and 6475 transitions. Second operand 11 states. [2020-10-12 19:39:06,179 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2020-10-12 19:39:07,647 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 351 DAG size of output: 351 [2020-10-12 19:39:17,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:39:17,808 INFO L93 Difference]: Finished difference Result 14919 states and 22385 transitions. [2020-10-12 19:39:17,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-12 19:39:17,808 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 78 [2020-10-12 19:39:17,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:39:17,831 INFO L225 Difference]: With dead ends: 14919 [2020-10-12 19:39:17,831 INFO L226 Difference]: Without dead ends: 13349 [2020-10-12 19:39:17,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=371, Invalid=1435, Unknown=0, NotChecked=0, Total=1806 [2020-10-12 19:39:17,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13349 states. [2020-10-12 19:39:18,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13349 to 4490. [2020-10-12 19:39:18,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4490 states. [2020-10-12 19:39:18,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4490 states to 4490 states and 6546 transitions. [2020-10-12 19:39:18,535 INFO L78 Accepts]: Start accepts. Automaton has 4490 states and 6546 transitions. Word has length 78 [2020-10-12 19:39:18,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:39:18,535 INFO L479 AbstractCegarLoop]: Abstraction has 4490 states and 6546 transitions. [2020-10-12 19:39:18,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:39:18,536 INFO L276 IsEmpty]: Start isEmpty. Operand 4490 states and 6546 transitions. [2020-10-12 19:39:18,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-12 19:39:18,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:39:18,539 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] [2020-10-12 19:39:18,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 19:39:18,539 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:39:18,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:39:18,540 INFO L82 PathProgramCache]: Analyzing trace with hash -338626560, now seen corresponding path program 1 times [2020-10-12 19:39:18,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:39:18,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307762153] [2020-10-12 19:39:18,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:39:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:39:18,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:18,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:18,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:18,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:19,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:19,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:20,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:20,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:20,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:20,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:22,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:22,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:22,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:22,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:23,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:23,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:23,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:39:23,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 19:39:23,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-12 19:39:23,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 19:39:23,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:39:23,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 19:39:23,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:39:23,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-12 19:39:23,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:39:24,514 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:39:24,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:39:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:39:24,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:24,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:39:24,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:39:24,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:39:24,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 19:39:24,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:39:24,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:39:24,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:39:24,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:39:24,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:39:24,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:39:24,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307762153] [2020-10-12 19:39:24,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:39:24,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 19:39:24,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993764309] [2020-10-12 19:39:24,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 19:39:24,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:39:24,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 19:39:24,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-10-12 19:39:24,576 INFO L87 Difference]: Start difference. First operand 4490 states and 6546 transitions. Second operand 15 states. [2020-10-12 19:39:26,078 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 337 DAG size of output: 329 [2020-10-12 19:39:33,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:39:33,394 INFO L93 Difference]: Finished difference Result 8604 states and 12678 transitions. [2020-10-12 19:39:33,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 19:39:33,395 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 78 [2020-10-12 19:39:33,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:39:33,403 INFO L225 Difference]: With dead ends: 8604 [2020-10-12 19:39:33,403 INFO L226 Difference]: Without dead ends: 5095 [2020-10-12 19:39:33,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=184, Invalid=628, Unknown=0, NotChecked=0, Total=812 [2020-10-12 19:39:33,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5095 states. [2020-10-12 19:39:33,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5095 to 2508. [2020-10-12 19:39:33,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2508 states. [2020-10-12 19:39:33,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2508 states to 2508 states and 3610 transitions. [2020-10-12 19:39:33,886 INFO L78 Accepts]: Start accepts. Automaton has 2508 states and 3610 transitions. Word has length 78 [2020-10-12 19:39:33,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:39:33,886 INFO L479 AbstractCegarLoop]: Abstraction has 2508 states and 3610 transitions. [2020-10-12 19:39:33,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 19:39:33,886 INFO L276 IsEmpty]: Start isEmpty. Operand 2508 states and 3610 transitions. [2020-10-12 19:39:33,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-12 19:39:33,888 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:39:33,888 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] [2020-10-12 19:39:33,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 19:39:33,888 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:39:33,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:39:33,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1548762802, now seen corresponding path program 1 times [2020-10-12 19:39:33,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:39:33,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [722101436] [2020-10-12 19:39:33,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:39:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:39:33,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:33,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:33,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:34,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:34,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:35,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:35,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:35,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:35,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:36,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:36,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:36,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:36,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:37,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:38,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:38,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:38,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:38,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:39:38,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 19:39:38,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-12 19:39:38,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-12 19:39:38,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:39:38,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 19:39:38,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:39:38,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 19:39:38,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:39:39,724 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:39:39,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:39:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:39:39,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:39,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:39:39,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:39:39,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:39:39,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 19:39:39,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:39:39,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:39:39,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:39:39,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:39:39,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:39:39,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:39:39,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [722101436] [2020-10-12 19:39:39,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:39:39,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:39:39,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495485385] [2020-10-12 19:39:39,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 19:39:39,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:39:39,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 19:39:39,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 19:39:39,787 INFO L87 Difference]: Start difference. First operand 2508 states and 3610 transitions. Second operand 13 states. [2020-10-12 19:39:41,108 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 318 DAG size of output: 317 [2020-10-12 19:39:47,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:39:47,239 INFO L93 Difference]: Finished difference Result 7290 states and 10873 transitions. [2020-10-12 19:39:47,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 19:39:47,240 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 78 [2020-10-12 19:39:47,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:39:47,249 INFO L225 Difference]: With dead ends: 7290 [2020-10-12 19:39:47,250 INFO L226 Difference]: Without dead ends: 5949 [2020-10-12 19:39:47,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2020-10-12 19:39:47,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5949 states. [2020-10-12 19:39:47,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5949 to 2508. [2020-10-12 19:39:47,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2508 states. [2020-10-12 19:39:47,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2508 states to 2508 states and 3608 transitions. [2020-10-12 19:39:47,776 INFO L78 Accepts]: Start accepts. Automaton has 2508 states and 3608 transitions. Word has length 78 [2020-10-12 19:39:47,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:39:47,777 INFO L479 AbstractCegarLoop]: Abstraction has 2508 states and 3608 transitions. [2020-10-12 19:39:47,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 19:39:47,777 INFO L276 IsEmpty]: Start isEmpty. Operand 2508 states and 3608 transitions. [2020-10-12 19:39:47,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-12 19:39:47,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:39:47,779 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] [2020-10-12 19:39:47,779 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 19:39:47,779 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:39:47,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:39:47,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1633570028, now seen corresponding path program 1 times [2020-10-12 19:39:47,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:39:47,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1054495662] [2020-10-12 19:39:47,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:39:47,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:39:47,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:47,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:47,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:47,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:48,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:48,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:49,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:50,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:50,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:50,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:50,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:51,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:51,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:51,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:52,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:52,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:52,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:39:52,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 19:39:52,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-12 19:39:52,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 19:39:52,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:39:52,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:39:52,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:39:52,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 19:39:52,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:39:53,861 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:39:53,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:39:53,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:39:53,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:53,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:39:53,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:39:53,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:39:53,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:39:53,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:39:53,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:39:53,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:39:53,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:39:53,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:39:53,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:39:53,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1054495662] [2020-10-12 19:39:53,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:39:53,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:39:53,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528739501] [2020-10-12 19:39:53,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:39:53,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:39:53,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:39:53,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:39:53,912 INFO L87 Difference]: Start difference. First operand 2508 states and 3608 transitions. Second operand 12 states. [2020-10-12 19:39:54,073 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2020-10-12 19:39:55,569 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 341 DAG size of output: 336 [2020-10-12 19:39:56,005 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2020-10-12 19:39:56,159 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2020-10-12 19:39:56,419 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-10-12 19:39:56,754 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2020-10-12 19:39:57,272 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2020-10-12 19:39:57,457 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2020-10-12 19:39:58,038 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2020-10-12 19:40:03,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:40:03,250 INFO L93 Difference]: Finished difference Result 5396 states and 7956 transitions. [2020-10-12 19:40:03,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 19:40:03,251 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 78 [2020-10-12 19:40:03,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:40:03,256 INFO L225 Difference]: With dead ends: 5396 [2020-10-12 19:40:03,256 INFO L226 Difference]: Without dead ends: 5379 [2020-10-12 19:40:03,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=153, Invalid=603, Unknown=0, NotChecked=0, Total=756 [2020-10-12 19:40:03,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5379 states. [2020-10-12 19:40:03,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5379 to 2508. [2020-10-12 19:40:03,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2508 states. [2020-10-12 19:40:03,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2508 states to 2508 states and 3606 transitions. [2020-10-12 19:40:03,646 INFO L78 Accepts]: Start accepts. Automaton has 2508 states and 3606 transitions. Word has length 78 [2020-10-12 19:40:03,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:40:03,646 INFO L479 AbstractCegarLoop]: Abstraction has 2508 states and 3606 transitions. [2020-10-12 19:40:03,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:40:03,646 INFO L276 IsEmpty]: Start isEmpty. Operand 2508 states and 3606 transitions. [2020-10-12 19:40:03,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-12 19:40:03,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:40:03,648 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] [2020-10-12 19:40:03,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 19:40:03,648 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:40:03,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:40:03,649 INFO L82 PathProgramCache]: Analyzing trace with hash 2018618189, now seen corresponding path program 1 times [2020-10-12 19:40:03,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:40:03,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [201874105] [2020-10-12 19:40:03,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:40:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:03,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:03,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:03,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:03,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:03,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:04,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:04,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:05,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:06,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:07,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:07,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:08,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:08,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:08,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 19:40:08,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 19:40:08,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 19:40:08,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:08,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 19:40:08,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:40:08,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-12 19:40:08,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:40:10,002 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:40:10,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:40:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:10,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:10,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:10,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:40:10,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:40:10,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:40:10,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:10,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:40:10,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:40:10,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:40:10,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:40:10,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:40:10,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [201874105] [2020-10-12 19:40:10,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:40:10,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 19:40:10,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374829518] [2020-10-12 19:40:10,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 19:40:10,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:40:10,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 19:40:10,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-12 19:40:10,069 INFO L87 Difference]: Start difference. First operand 2508 states and 3606 transitions. Second operand 13 states. [2020-10-12 19:40:10,824 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-12 19:40:17,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:40:17,947 INFO L93 Difference]: Finished difference Result 9612 states and 14117 transitions. [2020-10-12 19:40:17,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-12 19:40:17,948 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 78 [2020-10-12 19:40:17,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:40:17,955 INFO L225 Difference]: With dead ends: 9612 [2020-10-12 19:40:17,955 INFO L226 Difference]: Without dead ends: 8269 [2020-10-12 19:40:17,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=188, Invalid=682, Unknown=0, NotChecked=0, Total=870 [2020-10-12 19:40:17,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8269 states. [2020-10-12 19:40:18,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8269 to 2508. [2020-10-12 19:40:18,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2508 states. [2020-10-12 19:40:18,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2508 states to 2508 states and 3604 transitions. [2020-10-12 19:40:18,450 INFO L78 Accepts]: Start accepts. Automaton has 2508 states and 3604 transitions. Word has length 78 [2020-10-12 19:40:18,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:40:18,450 INFO L479 AbstractCegarLoop]: Abstraction has 2508 states and 3604 transitions. [2020-10-12 19:40:18,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 19:40:18,450 INFO L276 IsEmpty]: Start isEmpty. Operand 2508 states and 3604 transitions. [2020-10-12 19:40:18,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-12 19:40:18,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:40:18,452 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] [2020-10-12 19:40:18,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 19:40:18,452 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:40:18,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:40:18,453 INFO L82 PathProgramCache]: Analyzing trace with hash 636244065, now seen corresponding path program 1 times [2020-10-12 19:40:18,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:40:18,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [514292267] [2020-10-12 19:40:18,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:40:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:18,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:18,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:18,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:18,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:18,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:18,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:19,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:19,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:19,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:19,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:19,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:20,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:23,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:23,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 19:40:23,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 19:40:23,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 19:40:23,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:23,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:40:23,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:40:23,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 19:40:23,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:40:24,507 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:40:24,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:40:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:24,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:24,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:24,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:40:24,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:40:24,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:40:24,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:24,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:40:24,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:40:24,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:40:24,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:40:24,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:40:24,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [514292267] [2020-10-12 19:40:24,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:40:24,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:40:24,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412255608] [2020-10-12 19:40:24,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:40:24,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:40:24,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:40:24,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:40:24,555 INFO L87 Difference]: Start difference. First operand 2508 states and 3604 transitions. Second operand 12 states. [2020-10-12 19:40:25,260 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 315 [2020-10-12 19:40:33,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:40:33,294 INFO L93 Difference]: Finished difference Result 7184 states and 10584 transitions. [2020-10-12 19:40:33,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 19:40:33,295 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 78 [2020-10-12 19:40:33,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:40:33,300 INFO L225 Difference]: With dead ends: 7184 [2020-10-12 19:40:33,300 INFO L226 Difference]: Without dead ends: 5781 [2020-10-12 19:40:33,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=126, Invalid=474, Unknown=0, NotChecked=0, Total=600 [2020-10-12 19:40:33,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5781 states. [2020-10-12 19:40:33,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5781 to 2508. [2020-10-12 19:40:33,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2508 states. [2020-10-12 19:40:33,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2508 states to 2508 states and 3600 transitions. [2020-10-12 19:40:33,748 INFO L78 Accepts]: Start accepts. Automaton has 2508 states and 3600 transitions. Word has length 78 [2020-10-12 19:40:33,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:40:33,748 INFO L479 AbstractCegarLoop]: Abstraction has 2508 states and 3600 transitions. [2020-10-12 19:40:33,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:40:33,748 INFO L276 IsEmpty]: Start isEmpty. Operand 2508 states and 3600 transitions. [2020-10-12 19:40:33,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-12 19:40:33,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:40:33,750 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] [2020-10-12 19:40:33,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 19:40:33,751 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:40:33,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:40:33,751 INFO L82 PathProgramCache]: Analyzing trace with hash -392401559, now seen corresponding path program 1 times [2020-10-12 19:40:33,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:40:33,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1853522070] [2020-10-12 19:40:33,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:40:33,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:33,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:33,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:33,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:33,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:34,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:34,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:34,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:34,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:35,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:35,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:38,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:38,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 19:40:38,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 19:40:38,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-12 19:40:38,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:38,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 19:40:38,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 19:40:38,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 19:40:38,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:40:39,529 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:40:39,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:40:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:39,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:39,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:39,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:40:39,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:40:39,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 19:40:39,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:39,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:40:39,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:40:39,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:40:39,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:40:39,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:40:39,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1853522070] [2020-10-12 19:40:39,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:40:39,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 19:40:39,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243493083] [2020-10-12 19:40:39,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 19:40:39,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:40:39,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 19:40:39,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-12 19:40:39,568 INFO L87 Difference]: Start difference. First operand 2508 states and 3600 transitions. Second operand 13 states. [2020-10-12 19:40:40,251 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 314 [2020-10-12 19:40:55,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:40:55,285 INFO L93 Difference]: Finished difference Result 20608 states and 30752 transitions. [2020-10-12 19:40:55,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 19:40:55,286 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 79 [2020-10-12 19:40:55,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:40:55,304 INFO L225 Difference]: With dead ends: 20608 [2020-10-12 19:40:55,304 INFO L226 Difference]: Without dead ends: 19238 [2020-10-12 19:40:55,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=298, Invalid=1108, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 19:40:55,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19238 states. [2020-10-12 19:40:55,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19238 to 2516. [2020-10-12 19:40:55,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2516 states. [2020-10-12 19:40:55,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2516 states to 2516 states and 3608 transitions. [2020-10-12 19:40:55,909 INFO L78 Accepts]: Start accepts. Automaton has 2516 states and 3608 transitions. Word has length 79 [2020-10-12 19:40:55,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:40:55,909 INFO L479 AbstractCegarLoop]: Abstraction has 2516 states and 3608 transitions. [2020-10-12 19:40:55,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 19:40:55,909 INFO L276 IsEmpty]: Start isEmpty. Operand 2516 states and 3608 transitions. [2020-10-12 19:40:55,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-12 19:40:55,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:40:55,912 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] [2020-10-12 19:40:55,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 19:40:55,912 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:40:55,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:40:55,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1389727522, now seen corresponding path program 1 times [2020-10-12 19:40:55,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:40:55,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1632747137] [2020-10-12 19:40:55,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:40:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:55,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:55,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:56,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:56,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:56,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:56,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking...