/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:52:14,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:52:14,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:52:15,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:52:15,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:52:15,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:52:15,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:52:15,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:52:15,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:52:15,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:52:15,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:52:15,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:52:15,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:52:15,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:52:15,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:52:15,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:52:15,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:52:15,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:52:15,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:52:15,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:52:15,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:52:15,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:52:15,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:52:15,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:52:15,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:52:15,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:52:15,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:52:15,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:52:15,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:52:15,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:52:15,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:52:15,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:52:15,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:52:15,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:52:15,040 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:52:15,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:52:15,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:52:15,041 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:52:15,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:52:15,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:52:15,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:52:15,043 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 18:52:15,065 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:52:15,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:52:15,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:52:15,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:52:15,067 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:52:15,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:52:15,068 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:52:15,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:52:15,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:52:15,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:52:15,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:52:15,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:52:15,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:52:15,069 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:52:15,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:52:15,069 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:52:15,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:52:15,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:52:15,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:52:15,070 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:52:15,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:52:15,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:52:15,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:52:15,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:52:15,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:52:15,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:52:15,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:52:15,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:52:15,072 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:52:15,072 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:52:15,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:52:15,412 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:52:15,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:52:15,419 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:52:15,420 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:52:15,421 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c [2020-10-12 18:52:15,476 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ae46437ce/1ec3ed495f5c428c8ac2218127ed296e/FLAGce130d665 [2020-10-12 18:52:15,954 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:52:15,954 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c [2020-10-12 18:52:15,971 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ae46437ce/1ec3ed495f5c428c8ac2218127ed296e/FLAGce130d665 [2020-10-12 18:52:16,312 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ae46437ce/1ec3ed495f5c428c8ac2218127ed296e [2020-10-12 18:52:16,321 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:52:16,323 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:52:16,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:52:16,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:52:16,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:52:16,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:52:16" (1/1) ... [2020-10-12 18:52:16,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@481e6313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:16, skipping insertion in model container [2020-10-12 18:52:16,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:52:16" (1/1) ... [2020-10-12 18:52:16,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:52:16,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:52:16,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:52:16,663 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:52:16,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:52:16,823 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:52:16,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:16 WrapperNode [2020-10-12 18:52:16,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:52:16,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:52:16,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:52:16,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:52:16,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:16" (1/1) ... [2020-10-12 18:52:16,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:16" (1/1) ... [2020-10-12 18:52:16,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:16" (1/1) ... [2020-10-12 18:52:16,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:16" (1/1) ... [2020-10-12 18:52:16,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:16" (1/1) ... [2020-10-12 18:52:16,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:16" (1/1) ... [2020-10-12 18:52:16,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:16" (1/1) ... [2020-10-12 18:52:16,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:52:16,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:52:16,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:52:16,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:52:16,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:16" (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 18:52:16,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:52:16,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:52:16,943 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 18:52:16,943 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:52:16,943 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:52:16,943 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:52:16,943 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-12 18:52:16,943 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:52:16,944 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:52:16,944 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:52:16,944 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:52:16,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:52:16,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:52:16,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:52:16,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-12 18:52:16,945 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:52:16,945 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:52:16,945 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 18:52:16,945 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:52:16,945 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:52:16,945 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:52:16,945 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:52:16,946 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:52:16,946 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 18:52:16,946 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:52:16,946 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:52:16,946 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:52:16,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:52:16,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:52:17,586 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:52:17,587 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:52:17,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:52:17 BoogieIcfgContainer [2020-10-12 18:52:17,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:52:17,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:52:17,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:52:17,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:52:17,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:52:16" (1/3) ... [2020-10-12 18:52:17,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768e8364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:52:17, skipping insertion in model container [2020-10-12 18:52:17,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:16" (2/3) ... [2020-10-12 18:52:17,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768e8364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:52:17, skipping insertion in model container [2020-10-12 18:52:17,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:52:17" (3/3) ... [2020-10-12 18:52:17,601 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c [2020-10-12 18:52:17,612 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:52:17,620 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:52:17,633 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:52:17,659 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:52:17,659 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:52:17,659 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:52:17,659 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:52:17,660 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:52:17,660 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:52:17,660 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:52:17,660 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:52:17,682 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states. [2020-10-12 18:52:17,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-12 18:52:17,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:52:17,694 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] [2020-10-12 18:52:17,694 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:52:17,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:52:17,701 INFO L82 PathProgramCache]: Analyzing trace with hash -40239445, now seen corresponding path program 1 times [2020-10-12 18:52:17,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:52:17,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [92508187] [2020-10-12 18:52:17,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:52:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:18,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:18,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:18,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 18:52:18,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:18,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-12 18:52:18,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:18,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:18,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 18:52:18,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:18,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:52:18,421 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:52:18,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:52:18,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:18,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:18,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:18,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:52:18,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:18,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:52:18,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:18,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:18,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:18,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:18,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:18,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:52:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:18,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:18,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:18,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:52:18,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:18,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:52:18,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:18,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:18,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:18,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:18,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:18,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 18:52:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:18,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:18,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:18,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:52:18,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:18,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:52:18,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:18,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:52:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:18,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:18,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 18:52:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:18,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:18,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:18,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:52:18,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:18,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:52:18,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:18,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:18,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:52:18,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:18,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:18,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 18:52:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:18,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:18,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:18,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:18,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:18,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:52:18,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:18,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:18,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:52:18,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:18,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:18,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 18:52:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:18,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:18,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:18,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:18,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:18,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:52:18,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:18,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:18,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:52:18,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:18,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:18,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 18:52:18,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:18,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:18,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:18,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:18,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:18,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:52:18,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:18,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:18,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:52:18,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:18,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:18,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-12 18:52:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:18,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:18,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:18,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:52:18,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:18,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:52:18,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:18,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:18,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:52:18,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:18,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:18,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:52:18,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [92508187] [2020-10-12 18:52:18,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:52:18,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 18:52:18,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596934893] [2020-10-12 18:52:18,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 18:52:18,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:52:18,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 18:52:18,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 18:52:18,681 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 7 states. [2020-10-12 18:52:19,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:52:19,530 INFO L93 Difference]: Finished difference Result 231 states and 342 transitions. [2020-10-12 18:52:19,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 18:52:19,532 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2020-10-12 18:52:19,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:52:19,544 INFO L225 Difference]: With dead ends: 231 [2020-10-12 18:52:19,544 INFO L226 Difference]: Without dead ends: 135 [2020-10-12 18:52:19,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:52:19,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-12 18:52:19,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 130. [2020-10-12 18:52:19,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-12 18:52:19,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 194 transitions. [2020-10-12 18:52:19,606 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 194 transitions. Word has length 61 [2020-10-12 18:52:19,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:52:19,607 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 194 transitions. [2020-10-12 18:52:19,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 18:52:19,607 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 194 transitions. [2020-10-12 18:52:19,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-12 18:52:19,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:52:19,613 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] [2020-10-12 18:52:19,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:52:19,614 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:52:19,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:52:19,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1888033257, now seen corresponding path program 1 times [2020-10-12 18:52:19,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:52:19,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [235593517] [2020-10-12 18:52:19,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:52:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:19,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:20,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:20,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 18:52:20,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:20,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 532 [2020-10-12 18:52:20,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:20,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:52:20,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:52:20,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:52:20,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:20,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:52:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:20,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:20,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:20,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:52:20,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:20,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:52:20,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:20,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:20,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:20,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:20,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:20,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:52:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:20,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:20,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:20,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:52:20,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:20,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:52:20,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:20,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:20,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:20,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:52:20,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:20,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 18:52:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:20,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:20,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:20,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:52:20,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:20,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:52:20,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:20,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:20,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:52:20,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:52:20,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:20,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 18:52:20,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:20,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:20,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:20,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:52:20,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:20,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:52:20,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:20,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:20,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:52:20,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:20,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:20,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 18:52:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:20,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:20,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:20,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:20,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:20,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:52:20,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:20,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:20,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:52:20,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:20,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:20,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 18:52:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:20,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:20,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:20,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:20,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:20,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:52:20,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:20,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:20,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:52:20,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:20,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:20,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 18:52:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:20,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:20,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:20,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:20,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:20,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:52:20,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:20,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:20,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:52:20,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:20,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:20,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-12 18:52:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:20,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:20,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:20,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:52:20,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:20,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:52:20,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:20,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:20,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:52:20,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:20,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:20,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:52:20,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [235593517] [2020-10-12 18:52:20,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:52:20,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:52:20,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842153670] [2020-10-12 18:52:20,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:52:20,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:52:20,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:52:20,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:52:20,569 INFO L87 Difference]: Start difference. First operand 130 states and 194 transitions. Second operand 13 states. [2020-10-12 18:52:20,798 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 18:52:22,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:52:22,425 INFO L93 Difference]: Finished difference Result 229 states and 334 transitions. [2020-10-12 18:52:22,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 18:52:22,425 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 61 [2020-10-12 18:52:22,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:52:22,428 INFO L225 Difference]: With dead ends: 229 [2020-10-12 18:52:22,429 INFO L226 Difference]: Without dead ends: 135 [2020-10-12 18:52:22,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-12 18:52:22,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-12 18:52:22,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 130. [2020-10-12 18:52:22,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-12 18:52:22,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 170 transitions. [2020-10-12 18:52:22,448 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 170 transitions. Word has length 61 [2020-10-12 18:52:22,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:52:22,448 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 170 transitions. [2020-10-12 18:52:22,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:52:22,449 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 170 transitions. [2020-10-12 18:52:22,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-12 18:52:22,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:52:22,452 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, 1, 1, 1, 1, 1, 1] [2020-10-12 18:52:22,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:52:22,452 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:52:22,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:52:22,453 INFO L82 PathProgramCache]: Analyzing trace with hash -571472210, now seen corresponding path program 1 times [2020-10-12 18:52:22,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:52:22,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1530180544] [2020-10-12 18:52:22,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:52:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:22,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:22,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:22,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:23,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:27,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:27,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-12 18:52:27,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:52:27,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-12 18:52:27,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:27,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 18:52:27,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 18:52:27,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 18:52:27,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:52:27,664 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:52:27,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:52:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:27,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:27,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:27,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:52:27,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:27,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:52:27,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:27,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:27,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:27,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:27,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:27,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:52:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:27,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:27,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:27,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:52:27,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:27,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 18:52:27,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:27,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:52:27,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:27,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 18:52:27,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:27,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 18:52:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:27,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:27,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:27,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:52:27,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:27,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:52:27,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:27,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:27,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:27,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:52:27,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:27,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 18:52:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:27,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:27,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:27,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:52:27,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:27,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:52:27,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:27,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:27,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:27,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:52:27,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:27,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:52:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:27,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:27,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:27,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:27,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:27,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:52:27,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:27,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:27,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:27,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:52:27,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:27,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-12 18:52:27,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:27,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:27,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:27,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:27,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:27,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:52:27,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:27,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:27,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:27,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:52:27,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:27,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 18:52:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:27,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:27,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:27,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:27,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:27,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:52:27,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:27,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:27,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:27,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:52:27,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:27,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:52:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:27,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:27,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:27,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:52:27,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:27,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:52:27,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:27,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:27,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:52:27,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:52:27,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:28,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:52:28,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1530180544] [2020-10-12 18:52:28,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:52:28,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:52:28,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712977625] [2020-10-12 18:52:28,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:52:28,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:52:28,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:52:28,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:52:28,035 INFO L87 Difference]: Start difference. First operand 130 states and 170 transitions. Second operand 16 states. [2020-10-12 18:52:28,201 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:52:34,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:52:34,485 INFO L93 Difference]: Finished difference Result 998 states and 1422 transitions. [2020-10-12 18:52:34,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-10-12 18:52:34,491 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 84 [2020-10-12 18:52:34,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:52:34,503 INFO L225 Difference]: With dead ends: 998 [2020-10-12 18:52:34,503 INFO L226 Difference]: Without dead ends: 910 [2020-10-12 18:52:34,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1872 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1173, Invalid=4527, Unknown=0, NotChecked=0, Total=5700 [2020-10-12 18:52:34,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2020-10-12 18:52:34,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 849. [2020-10-12 18:52:34,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2020-10-12 18:52:34,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1230 transitions. [2020-10-12 18:52:34,598 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1230 transitions. Word has length 84 [2020-10-12 18:52:34,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:52:34,599 INFO L479 AbstractCegarLoop]: Abstraction has 849 states and 1230 transitions. [2020-10-12 18:52:34,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:52:34,599 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1230 transitions. [2020-10-12 18:52:34,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-12 18:52:34,604 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:52:34,605 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:52:34,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:52:34,605 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:52:34,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:52:34,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1853525755, now seen corresponding path program 1 times [2020-10-12 18:52:34,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:52:34,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201897215] [2020-10-12 18:52:34,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:52:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:34,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:34,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:34,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:34,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:39,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:39,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-12 18:52:39,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:52:39,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 18:52:39,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:39,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:52:39,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-12 18:52:39,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:52:39,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:39,855 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:52:39,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:52:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:39,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:39,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:39,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:52:39,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:39,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:52:39,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:39,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:39,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:39,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:39,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:52:39,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:52:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:39,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:39,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:39,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:52:39,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:39,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:52:39,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:39,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:39,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:39,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:39,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:52:39,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 18:52:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:39,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:39,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:39,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:52:39,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:39,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:52:39,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:39,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:39,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:39,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:39,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:39,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 18:52:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:39,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:39,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:39,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:52:39,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:39,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:52:39,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:39,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:39,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:39,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:39,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:52:39,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:52:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:39,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:39,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:39,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:39,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:39,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:52:39,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:39,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:39,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:39,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:39,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:52:40,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-12 18:52:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:40,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:40,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:40,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:40,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:40,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:52:40,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:40,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:40,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:40,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:40,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:52:40,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 18:52:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:40,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:40,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:40,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:40,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:40,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:52:40,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:40,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:40,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:40,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:40,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:52:40,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:52:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:40,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:40,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:40,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:40,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:40,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:52:40,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:40,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:40,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:40,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:52:40,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:52:40,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:52:40,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1201897215] [2020-10-12 18:52:40,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:52:40,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:52:40,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205526263] [2020-10-12 18:52:40,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:52:40,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:52:40,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:52:40,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:52:40,146 INFO L87 Difference]: Start difference. First operand 849 states and 1230 transitions. Second operand 13 states. [2020-10-12 18:52:41,852 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:52:42,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:52:42,044 INFO L93 Difference]: Finished difference Result 990 states and 1429 transitions. [2020-10-12 18:52:42,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 18:52:42,045 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 85 [2020-10-12 18:52:42,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:52:42,052 INFO L225 Difference]: With dead ends: 990 [2020-10-12 18:52:42,052 INFO L226 Difference]: Without dead ends: 988 [2020-10-12 18:52:42,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2020-10-12 18:52:42,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2020-10-12 18:52:42,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 894. [2020-10-12 18:52:42,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-10-12 18:52:42,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1275 transitions. [2020-10-12 18:52:42,114 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1275 transitions. Word has length 85 [2020-10-12 18:52:42,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:52:42,115 INFO L479 AbstractCegarLoop]: Abstraction has 894 states and 1275 transitions. [2020-10-12 18:52:42,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:52:42,115 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1275 transitions. [2020-10-12 18:52:42,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-12 18:52:42,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:52:42,118 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:52:42,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:52:42,118 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:52:42,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:52:42,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1299036710, now seen corresponding path program 1 times [2020-10-12 18:52:42,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:52:42,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401602571] [2020-10-12 18:52:42,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:52:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:42,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:42,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:42,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:42,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:47,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:47,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 18:52:47,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:52:47,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 18:52:47,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:47,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:47,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:52:47,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 18:52:47,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:47,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:52:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:47,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:47,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:47,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:52:47,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:47,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:52:47,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:47,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:47,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:47,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:47,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:47,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:52:47,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:47,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:47,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:47,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:52:47,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:47,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:52:47,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:47,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:47,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:47,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 18:52:47,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:47,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 18:52:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:47,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:47,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:47,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:52:47,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:47,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:52:47,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:47,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:47,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:47,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:52:47,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:47,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 18:52:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:47,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:47,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:47,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:52:47,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:47,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:52:47,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:47,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:47,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:47,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:52:47,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:47,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:52:47,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:47,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:47,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:47,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:47,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:47,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:52:47,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:47,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:47,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:47,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:52:47,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:47,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-12 18:52:47,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:47,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:47,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:47,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:47,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:47,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:52:47,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:47,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:47,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:47,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:52:47,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:47,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 18:52:47,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:47,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:47,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:47,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:47,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:47,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 18:52:47,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:47,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:47,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:47,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:52:47,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:47,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:52:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:47,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:47,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:47,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:52:47,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:47,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:52:47,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:47,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:47,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 18:52:47,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:52:47,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:47,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:52:47,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401602571] [2020-10-12 18:52:47,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:52:47,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 18:52:47,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010774311] [2020-10-12 18:52:47,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:52:47,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:52:47,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:52:47,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:52:47,510 INFO L87 Difference]: Start difference. First operand 894 states and 1275 transitions. Second operand 10 states. [2020-10-12 18:52:49,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:52:49,794 INFO L93 Difference]: Finished difference Result 3198 states and 4612 transitions. [2020-10-12 18:52:49,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 18:52:49,794 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-10-12 18:52:49,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:52:49,808 INFO L225 Difference]: With dead ends: 3198 [2020-10-12 18:52:49,809 INFO L226 Difference]: Without dead ends: 2346 [2020-10-12 18:52:49,813 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2020-10-12 18:52:49,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2020-10-12 18:52:49,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 2208. [2020-10-12 18:52:49,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2208 states. [2020-10-12 18:52:49,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 3192 transitions. [2020-10-12 18:52:49,936 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 3192 transitions. Word has length 86 [2020-10-12 18:52:49,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:52:49,936 INFO L479 AbstractCegarLoop]: Abstraction has 2208 states and 3192 transitions. [2020-10-12 18:52:49,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:52:49,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 3192 transitions. [2020-10-12 18:52:49,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-12 18:52:49,939 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:52:49,939 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:52:49,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:52:49,939 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:52:49,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:52:49,940 INFO L82 PathProgramCache]: Analyzing trace with hash -89990605, now seen corresponding path program 1 times [2020-10-12 18:52:49,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:52:49,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765594631] [2020-10-12 18:52:49,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:52:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:49,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:50,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:50,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:50,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:51,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:54,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:54,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 18:52:54,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:52:54,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 18:52:54,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:54,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:52:54,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:52:54,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 18:52:54,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:55,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:52:55,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:55,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:55,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:55,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:52:55,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:55,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:52:55,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:55,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:55,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:55,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:55,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:55,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:52:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:55,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:55,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:55,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:52:55,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:55,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:52:55,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:55,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:55,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:55,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 18:52:55,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:55,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 18:52:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:55,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:55,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:55,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:52:55,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:55,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:52:55,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:55,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:55,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:55,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:52:55,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:55,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 18:52:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:55,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:55,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:55,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:52:55,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:55,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:52:55,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:55,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:52:55,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:55,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:52:55,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:55,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:52:55,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:55,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:55,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:55,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:55,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:55,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:52:55,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:55,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:55,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:55,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:52:55,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:55,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:52:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:55,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:55,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:55,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:55,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:55,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:52:55,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:55,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:55,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:55,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:52:55,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:55,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:52:55,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:55,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:55,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:55,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:55,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:55,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:52:55,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:55,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:55,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:55,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:52:55,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:55,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:52:55,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:55,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:55,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:55,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:52:55,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:55,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:52:55,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:55,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:55,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 18:52:55,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:52:55,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:55,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:52:55,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765594631] [2020-10-12 18:52:55,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:52:55,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 18:52:55,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546429383] [2020-10-12 18:52:55,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:52:55,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:52:55,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:52:55,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:52:55,320 INFO L87 Difference]: Start difference. First operand 2208 states and 3192 transitions. Second operand 12 states. [2020-10-12 18:52:58,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:52:58,607 INFO L93 Difference]: Finished difference Result 4849 states and 7018 transitions. [2020-10-12 18:52:58,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-12 18:52:58,610 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 87 [2020-10-12 18:52:58,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:52:58,629 INFO L225 Difference]: With dead ends: 4849 [2020-10-12 18:52:58,629 INFO L226 Difference]: Without dead ends: 3257 [2020-10-12 18:52:58,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=246, Invalid=876, Unknown=0, NotChecked=0, Total=1122 [2020-10-12 18:52:58,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3257 states. [2020-10-12 18:52:58,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3257 to 3088. [2020-10-12 18:52:58,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3088 states. [2020-10-12 18:52:58,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3088 states to 3088 states and 4486 transitions. [2020-10-12 18:52:58,814 INFO L78 Accepts]: Start accepts. Automaton has 3088 states and 4486 transitions. Word has length 87 [2020-10-12 18:52:58,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:52:58,814 INFO L479 AbstractCegarLoop]: Abstraction has 3088 states and 4486 transitions. [2020-10-12 18:52:58,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:52:58,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3088 states and 4486 transitions. [2020-10-12 18:52:58,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-12 18:52:58,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:52:58,817 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:52:58,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:52:58,817 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:52:58,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:52:58,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1150177994, now seen corresponding path program 1 times [2020-10-12 18:52:58,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:52:58,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1604130112] [2020-10-12 18:52:58,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:52:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:58,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:58,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:58,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:58,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:58,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:00,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:03,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:03,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 18:53:03,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:53:03,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 18:53:03,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:03,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:53:03,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 18:53:03,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-12 18:53:03,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:03,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:53:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:03,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:03,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:03,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:53:03,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:03,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:53:03,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:03,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:03,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:03,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:03,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:03,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:53:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:03,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:03,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:03,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:53:03,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:03,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:53:03,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:03,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:03,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:03,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 18:53:03,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:04,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 18:53:04,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:04,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:04,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:04,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:53:04,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:04,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:04,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:04,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:04,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:04,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:53:04,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:04,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 18:53:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:04,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:04,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:04,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:53:04,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:04,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:53:04,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:04,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:04,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:04,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:53:04,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:04,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:53:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:04,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:04,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:04,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:53:04,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:04,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:53:04,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:04,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:53:04,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:04,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:53:04,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:04,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:53:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:04,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:04,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:04,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:04,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:04,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:53:04,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:04,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:04,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:04,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:53:04,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:04,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:53:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:04,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:04,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:04,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:04,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:04,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:53:04,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:04,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:04,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:04,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:53:04,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:04,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:53:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:04,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:04,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:04,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:53:04,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:04,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:53:04,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:04,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:04,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:53:04,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:53:04,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:04,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:53:04,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1604130112] [2020-10-12 18:53:04,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:53:04,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:53:04,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44680140] [2020-10-12 18:53:04,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:53:04,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:53:04,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:53:04,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:53:04,274 INFO L87 Difference]: Start difference. First operand 3088 states and 4486 transitions. Second operand 16 states. [2020-10-12 18:53:04,650 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2020-10-12 18:53:04,843 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:53:05,020 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:53:05,198 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:53:07,458 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:53:07,573 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:53:12,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:53:12,681 INFO L93 Difference]: Finished difference Result 8212 states and 11984 transitions. [2020-10-12 18:53:12,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-10-12 18:53:12,682 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 87 [2020-10-12 18:53:12,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:53:12,710 INFO L225 Difference]: With dead ends: 8212 [2020-10-12 18:53:12,710 INFO L226 Difference]: Without dead ends: 5506 [2020-10-12 18:53:12,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1980 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1202, Invalid=5118, Unknown=0, NotChecked=0, Total=6320 [2020-10-12 18:53:12,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5506 states. [2020-10-12 18:53:13,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5506 to 4721. [2020-10-12 18:53:13,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4721 states. [2020-10-12 18:53:13,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4721 states to 4721 states and 6914 transitions. [2020-10-12 18:53:13,035 INFO L78 Accepts]: Start accepts. Automaton has 4721 states and 6914 transitions. Word has length 87 [2020-10-12 18:53:13,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:53:13,035 INFO L479 AbstractCegarLoop]: Abstraction has 4721 states and 6914 transitions. [2020-10-12 18:53:13,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:53:13,036 INFO L276 IsEmpty]: Start isEmpty. Operand 4721 states and 6914 transitions. [2020-10-12 18:53:13,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-12 18:53:13,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:53:13,038 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:53:13,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:53:13,039 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:53:13,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:53:13,039 INFO L82 PathProgramCache]: Analyzing trace with hash 625446154, now seen corresponding path program 1 times [2020-10-12 18:53:13,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:53:13,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [229405324] [2020-10-12 18:53:13,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:53:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:13,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:13,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:13,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:13,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:13,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:15,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:18,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:18,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 18:53:18,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:53:18,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 18:53:18,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:18,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:53:18,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 18:53:18,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-12 18:53:18,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:18,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:53:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:18,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:18,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:18,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:53:18,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:18,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:53:18,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:18,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:18,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:18,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:18,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:18,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:53:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:18,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:18,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:18,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:53:18,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:18,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:53:18,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:18,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:18,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:18,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 18:53:18,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:18,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 18:53:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:18,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:18,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:18,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:53:18,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:18,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:18,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:18,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:18,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:18,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:53:18,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:18,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 18:53:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:18,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:18,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:18,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:53:18,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:18,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:53:18,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:18,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:18,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:18,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:53:18,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:18,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:53:18,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:18,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:18,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:18,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:18,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:18,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:53:18,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:18,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:18,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:18,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:53:18,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:18,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-12 18:53:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:18,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:18,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:18,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:53:18,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:18,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:53:18,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:18,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:53:18,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:18,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:53:18,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:18,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:53:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:18,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:18,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:18,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:18,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:18,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:53:18,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:18,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:18,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:18,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:53:18,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:18,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:53:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:18,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:18,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:18,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:53:18,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:18,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:18,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:18,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:18,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:53:18,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:53:18,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:18,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:53:18,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [229405324] [2020-10-12 18:53:18,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:53:18,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:53:18,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328837939] [2020-10-12 18:53:18,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:53:18,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:53:18,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:53:18,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:53:18,512 INFO L87 Difference]: Start difference. First operand 4721 states and 6914 transitions. Second operand 16 states. [2020-10-12 18:53:18,771 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2020-10-12 18:53:21,563 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:53:25,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:53:25,301 INFO L93 Difference]: Finished difference Result 8540 states and 12430 transitions. [2020-10-12 18:53:25,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-10-12 18:53:25,306 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 87 [2020-10-12 18:53:25,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:53:25,337 INFO L225 Difference]: With dead ends: 8540 [2020-10-12 18:53:25,337 INFO L226 Difference]: Without dead ends: 6158 [2020-10-12 18:53:25,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1468 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1010, Invalid=3960, Unknown=0, NotChecked=0, Total=4970 [2020-10-12 18:53:25,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6158 states. [2020-10-12 18:53:25,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6158 to 5314. [2020-10-12 18:53:25,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5314 states. [2020-10-12 18:53:25,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5314 states to 5314 states and 7769 transitions. [2020-10-12 18:53:25,707 INFO L78 Accepts]: Start accepts. Automaton has 5314 states and 7769 transitions. Word has length 87 [2020-10-12 18:53:25,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:53:25,707 INFO L479 AbstractCegarLoop]: Abstraction has 5314 states and 7769 transitions. [2020-10-12 18:53:25,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:53:25,707 INFO L276 IsEmpty]: Start isEmpty. Operand 5314 states and 7769 transitions. [2020-10-12 18:53:25,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-12 18:53:25,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:53:25,711 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:53:25,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:53:25,711 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:53:25,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:53:25,712 INFO L82 PathProgramCache]: Analyzing trace with hash -545583036, now seen corresponding path program 1 times [2020-10-12 18:53:25,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:53:25,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [656375905] [2020-10-12 18:53:25,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:53:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:25,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:25,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:25,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:25,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:25,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:27,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:30,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:30,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 18:53:30,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:53:30,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 18:53:30,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:30,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:53:30,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 18:53:30,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-12 18:53:30,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:30,912 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:53:30,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:53:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:30,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:30,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:30,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:53:30,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:30,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:53:30,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:30,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:30,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:30,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:30,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:30,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:53:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:30,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:30,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:30,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:53:30,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:30,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:53:30,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:30,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:30,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:30,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:53:30,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:31,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 18:53:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:31,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:31,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:31,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:53:31,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:31,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:31,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:31,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:31,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:31,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:53:31,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:31,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 18:53:31,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:31,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:31,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:31,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:53:31,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:31,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:53:31,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:31,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:31,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:31,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:53:31,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:31,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:53:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:31,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:31,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:31,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:31,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:31,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:53:31,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:31,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:31,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:31,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:53:31,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:31,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-12 18:53:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:31,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:31,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:31,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:31,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:31,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:53:31,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:31,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:53:31,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:31,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:53:31,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:31,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 18:53:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:31,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:31,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:31,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:53:31,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:31,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:53:31,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:31,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:53:31,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:31,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:53:31,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:31,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:53:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:31,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:31,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:31,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:53:31,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:31,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:53:31,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:31,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:31,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:53:31,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:53:31,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:31,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:53:31,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [656375905] [2020-10-12 18:53:31,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:53:31,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:53:31,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349662241] [2020-10-12 18:53:31,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:53:31,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:53:31,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:53:31,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:53:31,388 INFO L87 Difference]: Start difference. First operand 5314 states and 7769 transitions. Second operand 16 states. [2020-10-12 18:53:31,704 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2020-10-12 18:53:32,705 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:53:33,526 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2020-10-12 18:53:35,824 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 119 [2020-10-12 18:53:39,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:53:39,234 INFO L93 Difference]: Finished difference Result 10593 states and 15411 transitions. [2020-10-12 18:53:39,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-10-12 18:53:39,236 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 87 [2020-10-12 18:53:39,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:53:39,275 INFO L225 Difference]: With dead ends: 10593 [2020-10-12 18:53:39,275 INFO L226 Difference]: Without dead ends: 6383 [2020-10-12 18:53:39,288 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1403 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=947, Invalid=3745, Unknown=0, NotChecked=0, Total=4692 [2020-10-12 18:53:39,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6383 states. [2020-10-12 18:53:39,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6383 to 5019. [2020-10-12 18:53:39,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5019 states. [2020-10-12 18:53:39,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5019 states to 5019 states and 7337 transitions. [2020-10-12 18:53:39,696 INFO L78 Accepts]: Start accepts. Automaton has 5019 states and 7337 transitions. Word has length 87 [2020-10-12 18:53:39,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:53:39,696 INFO L479 AbstractCegarLoop]: Abstraction has 5019 states and 7337 transitions. [2020-10-12 18:53:39,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:53:39,696 INFO L276 IsEmpty]: Start isEmpty. Operand 5019 states and 7337 transitions. [2020-10-12 18:53:39,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-12 18:53:39,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:53:39,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:53:39,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:53:39,703 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:53:39,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:53:39,703 INFO L82 PathProgramCache]: Analyzing trace with hash 327938149, now seen corresponding path program 1 times [2020-10-12 18:53:39,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:53:39,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [723669726] [2020-10-12 18:53:39,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:53:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:39,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:39,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:39,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:39,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:39,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:40,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:44,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:44,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 18:53:44,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:53:44,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 18:53:44,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:44,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:53:44,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:53:44,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 18:53:44,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:44,907 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:53:44,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:53:44,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:44,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:44,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:44,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:53:44,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:44,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:53:44,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:44,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:44,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:44,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:53:44,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:44,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:53:44,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:44,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:44,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:44,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:53:44,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:44,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:53:44,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:44,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:53:44,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:44,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 18:53:44,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:53:44,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 18:53:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:44,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:44,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:44,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:53:44,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:44,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:44,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:44,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:44,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:44,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:53:44,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:45,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 18:53:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:45,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:45,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:45,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:53:45,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:45,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:53:45,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:45,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:53:45,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:45,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:53:45,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:45,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 18:53:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:45,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:45,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:45,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:45,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:45,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:53:45,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:45,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:45,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:53:45,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:45,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:45,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:53:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:45,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:45,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:45,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:45,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:45,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:45,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:45,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:45,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:53:45,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:45,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:45,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:53:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:45,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:45,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:45,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:45,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:45,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:45,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:45,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:45,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:53:45,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:45,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:45,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 18:53:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:45,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:45,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:45,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:53:45,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:45,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:53:45,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:45,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:45,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:53:45,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:45,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:45,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:53:45,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [723669726] [2020-10-12 18:53:45,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:53:45,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:53:45,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632955611] [2020-10-12 18:53:45,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:53:45,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:53:45,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:53:45,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:53:45,160 INFO L87 Difference]: Start difference. First operand 5019 states and 7337 transitions. Second operand 14 states. [2020-10-12 18:53:45,391 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 114 [2020-10-12 18:53:45,911 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 116 [2020-10-12 18:53:46,123 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2020-10-12 18:53:48,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:53:48,040 INFO L93 Difference]: Finished difference Result 11222 states and 16361 transitions. [2020-10-12 18:53:48,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 18:53:48,040 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 88 [2020-10-12 18:53:48,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:53:48,063 INFO L225 Difference]: With dead ends: 11222 [2020-10-12 18:53:48,063 INFO L226 Difference]: Without dead ends: 7302 [2020-10-12 18:53:48,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=275, Invalid=717, Unknown=0, NotChecked=0, Total=992 [2020-10-12 18:53:48,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7302 states. [2020-10-12 18:53:48,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7302 to 5306. [2020-10-12 18:53:48,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5306 states. [2020-10-12 18:53:48,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5306 states to 5306 states and 7757 transitions. [2020-10-12 18:53:48,400 INFO L78 Accepts]: Start accepts. Automaton has 5306 states and 7757 transitions. Word has length 88 [2020-10-12 18:53:48,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:53:48,400 INFO L479 AbstractCegarLoop]: Abstraction has 5306 states and 7757 transitions. [2020-10-12 18:53:48,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:53:48,401 INFO L276 IsEmpty]: Start isEmpty. Operand 5306 states and 7757 transitions. [2020-10-12 18:53:48,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-12 18:53:48,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:53:48,403 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:53:48,403 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 18:53:48,403 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:53:48,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:53:48,404 INFO L82 PathProgramCache]: Analyzing trace with hash 400161154, now seen corresponding path program 1 times [2020-10-12 18:53:48,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:53:48,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724997433] [2020-10-12 18:53:48,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:53:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:48,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:48,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:48,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:48,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:48,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:48,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:49,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:49,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:53,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:53,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 18:53:53,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:53:53,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:53:53,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:53,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:53:53,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-12 18:53:53,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:53:53,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:53,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:53:53,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:53,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:53,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:53,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:53:53,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:53,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:53:53,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:53,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:53,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:53,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:53,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:53,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:53:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:53,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:53,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:53,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:53:53,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:53,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:53:53,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:53,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:53,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:53,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 18:53:53,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:53,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 18:53:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:53,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:53,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:53,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:53:53,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:53,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:53:53,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:53,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:53,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:53,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:53:53,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:53,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 18:53:53,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:53,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:53,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:53,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:53:53,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:53,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:53:53,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:53,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:53:53,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:53:53,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:53:53,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:53,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:53:53,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:53,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:53,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:53,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:53:53,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:53,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:53:53,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:53,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:53:53,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:53,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:53:53,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:53,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:53:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:53,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:53,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:53,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:53:53,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:53,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:53:53,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:53,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:53:53,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:53:53,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:53:53,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:53,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 18:53:53,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:53,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:53,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:53,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:53:53,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:53,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:53:53,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:53,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:53,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:53:53,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:53,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:53,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 18:53:53,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:53,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:53,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:53:53,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:53:53,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:53:53,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:53:53,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:53:53,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:53:53,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:53:53,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:53:53,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:53:53,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:53:53,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [724997433] [2020-10-12 18:53:53,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:53:53,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:53:53,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724402771] [2020-10-12 18:53:53,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:53:53,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:53:53,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:53:53,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:53:53,766 INFO L87 Difference]: Start difference. First operand 5306 states and 7757 transitions. Second operand 16 states. [2020-10-12 18:53:54,354 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 18:53:55,414 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:53:57,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:53:57,753 INFO L93 Difference]: Finished difference Result 7818 states and 11196 transitions. [2020-10-12 18:53:57,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 18:53:57,754 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 90 [2020-10-12 18:53:57,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:53:57,774 INFO L225 Difference]: With dead ends: 7818 [2020-10-12 18:53:57,774 INFO L226 Difference]: Without dead ends: 5937 [2020-10-12 18:53:57,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=262, Invalid=998, Unknown=0, NotChecked=0, Total=1260 [2020-10-12 18:53:57,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5937 states. [2020-10-12 18:53:58,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5937 to 5368. [2020-10-12 18:53:58,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5368 states. [2020-10-12 18:53:58,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5368 states to 5368 states and 7846 transitions. [2020-10-12 18:53:58,122 INFO L78 Accepts]: Start accepts. Automaton has 5368 states and 7846 transitions. Word has length 90 [2020-10-12 18:53:58,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:53:58,123 INFO L479 AbstractCegarLoop]: Abstraction has 5368 states and 7846 transitions. [2020-10-12 18:53:58,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:53:58,123 INFO L276 IsEmpty]: Start isEmpty. Operand 5368 states and 7846 transitions. [2020-10-12 18:53:58,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-12 18:53:58,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:53:58,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:53:58,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 18:53:58,125 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:53:58,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:53:58,126 INFO L82 PathProgramCache]: Analyzing trace with hash -770868036, now seen corresponding path program 1 times [2020-10-12 18:53:58,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:53:58,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369264517] [2020-10-12 18:53:58,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:53:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:53:58,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:58,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:58,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:58,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:58,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:58,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:58,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:53:58,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:03,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:03,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 18:54:03,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:54:03,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:54:03,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:03,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:54:03,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-12 18:54:03,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 18:54:03,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:03,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:54:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:03,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:03,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:03,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:54:03,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:03,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:54:03,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:03,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:03,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:03,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:03,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:03,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:54:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:03,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:03,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:03,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:54:03,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:03,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:54:03,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:03,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:03,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:03,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:54:03,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:03,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 18:54:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:03,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:03,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:03,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:54:03,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:03,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:03,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:03,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:03,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:03,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:54:03,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:03,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 18:54:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:03,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:03,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:03,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:54:03,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:03,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:54:03,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:03,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:03,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:03,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:54:03,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:03,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:54:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:03,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:03,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:03,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:54:03,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:03,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:54:03,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:03,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:54:03,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:03,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:54:03,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:03,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:54:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:03,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:03,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:03,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:03,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:03,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:54:03,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:03,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:03,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:03,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:54:03,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:03,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:54:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:03,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:03,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:03,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:54:03,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:03,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:54:03,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:03,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:54:03,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:03,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:54:03,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:03,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 18:54:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:03,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:03,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:03,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:54:03,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:03,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:03,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:03,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:03,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:54:03,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:03,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:03,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:54:03,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369264517] [2020-10-12 18:54:03,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:54:03,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:54:03,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725825515] [2020-10-12 18:54:03,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:54:03,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:54:03,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:54:03,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:54:03,509 INFO L87 Difference]: Start difference. First operand 5368 states and 7846 transitions. Second operand 16 states. [2020-10-12 18:54:06,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:54:06,320 INFO L93 Difference]: Finished difference Result 8786 states and 12632 transitions. [2020-10-12 18:54:06,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 18:54:06,321 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 90 [2020-10-12 18:54:06,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:54:06,339 INFO L225 Difference]: With dead ends: 8786 [2020-10-12 18:54:06,339 INFO L226 Difference]: Without dead ends: 5976 [2020-10-12 18:54:06,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=262, Invalid=998, Unknown=0, NotChecked=0, Total=1260 [2020-10-12 18:54:06,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5976 states. [2020-10-12 18:54:06,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5976 to 5389. [2020-10-12 18:54:06,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5389 states. [2020-10-12 18:54:06,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5389 states to 5389 states and 7875 transitions. [2020-10-12 18:54:06,653 INFO L78 Accepts]: Start accepts. Automaton has 5389 states and 7875 transitions. Word has length 90 [2020-10-12 18:54:06,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:54:06,653 INFO L479 AbstractCegarLoop]: Abstraction has 5389 states and 7875 transitions. [2020-10-12 18:54:06,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:54:06,654 INFO L276 IsEmpty]: Start isEmpty. Operand 5389 states and 7875 transitions. [2020-10-12 18:54:06,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-12 18:54:06,655 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:54:06,655 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:54:06,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 18:54:06,656 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:54:06,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:54:06,656 INFO L82 PathProgramCache]: Analyzing trace with hash 30907496, now seen corresponding path program 1 times [2020-10-12 18:54:06,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:54:06,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [391946173] [2020-10-12 18:54:06,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:54:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:06,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:06,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:06,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:06,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:06,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:06,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:07,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:07,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:11,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:11,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 18:54:11,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:54:11,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 18:54:11,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:11,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:54:11,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-12 18:54:11,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 18:54:11,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:11,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:54:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:11,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:11,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:11,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:54:11,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:11,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:54:11,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:11,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:11,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:11,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:11,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:11,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:54:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:11,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:11,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:11,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:54:11,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:11,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:54:11,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:11,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:11,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:11,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 18:54:11,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:11,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 18:54:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:11,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:11,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:11,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:54:11,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:11,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:54:11,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:11,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:11,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:11,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:54:11,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:11,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 18:54:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:11,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:11,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:11,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:54:11,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:11,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:54:11,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:11,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:11,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:11,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:54:11,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:11,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:54:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:11,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:11,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:11,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:11,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:11,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:54:11,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:11,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:11,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:11,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:54:11,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:11,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-12 18:54:11,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:11,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:11,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:11,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:54:11,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:11,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:54:11,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:11,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:54:11,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:11,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:54:11,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:11,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:54:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:11,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:11,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:11,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:54:11,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:11,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:54:11,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:11,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:54:11,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:11,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:54:11,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:12,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 18:54:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:12,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:12,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:12,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:54:12,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:12,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:12,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:12,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:12,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:54:12,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:12,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:12,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:54:12,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [391946173] [2020-10-12 18:54:12,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:54:12,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:54:12,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674404766] [2020-10-12 18:54:12,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:54:12,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:54:12,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:54:12,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:54:12,014 INFO L87 Difference]: Start difference. First operand 5389 states and 7875 transitions. Second operand 16 states. [2020-10-12 18:54:14,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:54:14,527 INFO L93 Difference]: Finished difference Result 8774 states and 12568 transitions. [2020-10-12 18:54:14,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 18:54:14,540 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 90 [2020-10-12 18:54:14,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:54:14,563 INFO L225 Difference]: With dead ends: 8774 [2020-10-12 18:54:14,564 INFO L226 Difference]: Without dead ends: 6026 [2020-10-12 18:54:14,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=248, Invalid=942, Unknown=0, NotChecked=0, Total=1190 [2020-10-12 18:54:14,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6026 states. [2020-10-12 18:54:14,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6026 to 5422. [2020-10-12 18:54:14,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5422 states. [2020-10-12 18:54:14,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5422 states to 5422 states and 7922 transitions. [2020-10-12 18:54:14,875 INFO L78 Accepts]: Start accepts. Automaton has 5422 states and 7922 transitions. Word has length 90 [2020-10-12 18:54:14,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:54:14,875 INFO L479 AbstractCegarLoop]: Abstraction has 5422 states and 7922 transitions. [2020-10-12 18:54:14,875 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:54:14,875 INFO L276 IsEmpty]: Start isEmpty. Operand 5422 states and 7922 transitions. [2020-10-12 18:54:14,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-12 18:54:14,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:54:14,882 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:54:14,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 18:54:14,882 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:54:14,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:54:14,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1228694870, now seen corresponding path program 1 times [2020-10-12 18:54:14,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:54:14,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [798098806] [2020-10-12 18:54:14,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:54:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:14,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:14,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:14,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:15,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:15,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:15,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:15,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:19,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:19,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-12 18:54:19,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:54:19,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-12 18:54:19,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:19,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:19,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-12 18:54:19,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 18:54:19,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:20,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:54:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:20,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:20,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:20,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:54:20,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:20,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:54:20,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:20,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:20,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:20,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:20,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:20,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:54:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:20,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:20,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:20,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:54:20,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:20,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:54:20,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:20,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:20,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:20,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-12 18:54:20,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:20,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 18:54:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:20,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:20,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:20,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:54:20,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:20,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:20,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:20,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:20,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:20,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:54:20,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:20,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 18:54:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:20,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:20,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:20,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:54:20,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:20,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:54:20,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:20,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:20,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:20,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:54:20,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:20,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:54:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:20,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:20,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:20,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:20,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:20,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:54:20,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:20,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:20,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:20,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:54:20,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:20,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:54:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:20,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:20,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:20,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:20,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:20,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:54:20,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:20,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:20,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:20,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:54:20,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:20,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:54:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:20,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:20,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:20,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:20,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:20,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:54:20,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:20,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:20,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:20,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:54:20,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:20,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:54:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:20,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:20,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:20,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:20,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:20,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:20,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:20,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:20,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:20,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:20,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:20,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 18:54:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:20,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:20,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:20,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:54:20,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:20,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:20,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:20,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:20,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 18:54:20,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:20,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:20,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 18:54:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:20,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:20,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:20,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:54:20,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:20,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:54:20,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:20,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:20,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 18:54:20,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:20,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:20,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:54:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:20,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:20,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:20,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:20,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:20,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:20,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:20,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:20,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:20,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:20,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:20,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:54:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:20,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:20,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:20,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:20,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:20,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:20,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:20,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:20,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:20,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:20,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:20,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 18:54:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:20,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:20,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:20,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:20,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:20,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:20,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:20,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:20,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:20,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:20,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:20,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 18:54:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:20,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:20,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:20,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:54:20,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:20,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:20,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:20,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:20,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:54:20,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:20,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:20,253 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-12 18:54:20,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [798098806] [2020-10-12 18:54:20,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:54:20,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 18:54:20,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071796674] [2020-10-12 18:54:20,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:54:20,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:54:20,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:54:20,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:54:20,255 INFO L87 Difference]: Start difference. First operand 5422 states and 7922 transitions. Second operand 10 states. [2020-10-12 18:54:22,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:54:22,059 INFO L93 Difference]: Finished difference Result 15204 states and 22086 transitions. [2020-10-12 18:54:22,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 18:54:22,059 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 132 [2020-10-12 18:54:22,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:54:22,088 INFO L225 Difference]: With dead ends: 15204 [2020-10-12 18:54:22,089 INFO L226 Difference]: Without dead ends: 10049 [2020-10-12 18:54:22,103 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2020-10-12 18:54:22,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10049 states. [2020-10-12 18:54:22,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10049 to 9615. [2020-10-12 18:54:22,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9615 states. [2020-10-12 18:54:22,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9615 states to 9615 states and 13889 transitions. [2020-10-12 18:54:22,584 INFO L78 Accepts]: Start accepts. Automaton has 9615 states and 13889 transitions. Word has length 132 [2020-10-12 18:54:22,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:54:22,584 INFO L479 AbstractCegarLoop]: Abstraction has 9615 states and 13889 transitions. [2020-10-12 18:54:22,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:54:22,584 INFO L276 IsEmpty]: Start isEmpty. Operand 9615 states and 13889 transitions. [2020-10-12 18:54:22,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-12 18:54:22,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:54:22,590 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:54:22,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 18:54:22,591 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:54:22,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:54:22,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1460868290, now seen corresponding path program 1 times [2020-10-12 18:54:22,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:54:22,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1951257416] [2020-10-12 18:54:22,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:54:22,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:22,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:22,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:22,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:22,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:22,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:22,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:27,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:27,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-12 18:54:27,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:54:27,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 18:54:27,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:27,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:27,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 18:54:27,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 18:54:27,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:27,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:54:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:27,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:27,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:27,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:54:27,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:27,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:54:27,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:27,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:27,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:27,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:27,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:27,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:54:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:27,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:27,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:27,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:54:27,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:27,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:54:27,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:27,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:27,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:27,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:54:27,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:27,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 18:54:27,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:27,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:27,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:27,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:54:27,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:27,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:27,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:27,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:27,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:27,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:54:27,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:27,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 18:54:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:27,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:27,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:27,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:54:27,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:27,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:54:27,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:27,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:27,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:27,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:54:27,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:27,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:54:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:27,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:27,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:27,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:27,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:27,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:27,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:27,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:27,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:27,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:27,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:27,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:54:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:27,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:27,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:27,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:27,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:27,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:27,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:27,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:27,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:27,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:27,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:27,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:54:27,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:27,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:27,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:27,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:54:27,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:27,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:27,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:27,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:27,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:54:27,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:27,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:27,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:54:27,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:27,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:27,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:27,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:27,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:27,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:27,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:27,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:27,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:27,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:27,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:27,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:54:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:27,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:27,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:27,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:54:27,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:27,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:27,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:27,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:27,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 18:54:27,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:27,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:27,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 18:54:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:27,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:27,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:27,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:54:27,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:27,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:27,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:27,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:27,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 18:54:27,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:27,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:27,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 18:54:27,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:27,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:27,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:27,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:27,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:27,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:27,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:27,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:27,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:27,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:27,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:27,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 18:54:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:27,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:27,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:27,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:27,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:27,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:27,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:27,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:27,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:27,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:27,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:27,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-12 18:54:27,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:27,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:27,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:27,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:27,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:27,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:27,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:27,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:27,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:27,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:27,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:27,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-12 18:54:27,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:27,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:27,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:27,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:54:27,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:27,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:27,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:27,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:27,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:54:27,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:27,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:27,903 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-12 18:54:27,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1951257416] [2020-10-12 18:54:27,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:54:27,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 18:54:27,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459175756] [2020-10-12 18:54:27,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:54:27,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:54:27,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:54:27,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:54:27,905 INFO L87 Difference]: Start difference. First operand 9615 states and 13889 transitions. Second operand 10 states. [2020-10-12 18:54:29,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:54:29,973 INFO L93 Difference]: Finished difference Result 20839 states and 29978 transitions. [2020-10-12 18:54:29,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 18:54:29,975 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 133 [2020-10-12 18:54:29,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:54:30,006 INFO L225 Difference]: With dead ends: 20839 [2020-10-12 18:54:30,006 INFO L226 Difference]: Without dead ends: 13958 [2020-10-12 18:54:30,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2020-10-12 18:54:30,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13958 states. [2020-10-12 18:54:30,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13958 to 13407. [2020-10-12 18:54:30,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13407 states. [2020-10-12 18:54:30,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13407 states to 13407 states and 19163 transitions. [2020-10-12 18:54:30,767 INFO L78 Accepts]: Start accepts. Automaton has 13407 states and 19163 transitions. Word has length 133 [2020-10-12 18:54:30,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:54:30,767 INFO L479 AbstractCegarLoop]: Abstraction has 13407 states and 19163 transitions. [2020-10-12 18:54:30,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:54:30,767 INFO L276 IsEmpty]: Start isEmpty. Operand 13407 states and 19163 transitions. [2020-10-12 18:54:30,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-12 18:54:30,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:54:30,770 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:54:30,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 18:54:30,771 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:54:30,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:54:30,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1261246361, now seen corresponding path program 1 times [2020-10-12 18:54:30,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:54:30,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1059746840] [2020-10-12 18:54:30,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:54:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:30,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:30,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:30,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:30,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:30,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:31,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:35,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:35,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-12 18:54:35,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:54:35,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 18:54:35,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:35,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:54:35,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:54:35,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 18:54:35,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:35,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:54:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:35,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:35,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:35,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:54:35,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:35,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:54:35,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:35,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:35,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:35,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:54:35,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:35,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:54:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:35,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:54:36,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:54:36,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:54:36,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:36,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 18:54:36,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:36,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 18:54:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:36,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:54:36,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:36,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:36,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:36,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:54:36,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:36,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 18:54:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:36,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:54:36,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-12 18:54:36,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:36,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:36,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:54:36,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:36,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:54:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:36,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:36,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:54:36,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:36,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:36,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:54:36,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:36,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-12 18:54:36,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:36,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:36,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:54:36,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:36,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:36,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:54:36,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:36,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 18:54:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:36,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:54:36,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:54:36,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:36,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:36,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:54:36,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:36,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:54:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:36,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:36,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:54:36,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:36,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:36,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:54:36,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:36,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 18:54:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:36,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:54:36,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:36,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:36,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:36,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:54:36,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:36,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 18:54:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:36,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:54:36,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:54:36,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:54:36,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:36,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:54:36,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:36,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-12 18:54:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:36,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:36,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:36,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:36,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:36,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:36,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:36,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 18:54:36,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:36,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:36,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:36,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:36,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:36,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:36,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:36,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-12 18:54:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:36,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:36,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:36,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:36,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:36,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:36,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:36,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 18:54:36,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:36,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:54:36,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:36,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:36,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:54:36,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:36,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:36,338 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-12 18:54:36,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1059746840] [2020-10-12 18:54:36,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:54:36,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-12 18:54:36,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636056844] [2020-10-12 18:54:36,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:54:36,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:54:36,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:54:36,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:54:36,340 INFO L87 Difference]: Start difference. First operand 13407 states and 19163 transitions. Second operand 16 states. [2020-10-12 18:54:36,585 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 114 [2020-10-12 18:54:37,153 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2020-10-12 18:54:37,373 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 120 [2020-10-12 18:54:38,464 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 116 [2020-10-12 18:54:40,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:54:40,375 INFO L93 Difference]: Finished difference Result 31471 states and 44598 transitions. [2020-10-12 18:54:40,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 18:54:40,376 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 133 [2020-10-12 18:54:40,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:54:40,424 INFO L225 Difference]: With dead ends: 31471 [2020-10-12 18:54:40,425 INFO L226 Difference]: Without dead ends: 20032 [2020-10-12 18:54:40,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=399, Invalid=1083, Unknown=0, NotChecked=0, Total=1482 [2020-10-12 18:54:40,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20032 states. [2020-10-12 18:54:41,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20032 to 19249. [2020-10-12 18:54:41,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19249 states. [2020-10-12 18:54:41,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19249 states to 19249 states and 27106 transitions. [2020-10-12 18:54:41,530 INFO L78 Accepts]: Start accepts. Automaton has 19249 states and 27106 transitions. Word has length 133 [2020-10-12 18:54:41,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:54:41,530 INFO L479 AbstractCegarLoop]: Abstraction has 19249 states and 27106 transitions. [2020-10-12 18:54:41,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:54:41,530 INFO L276 IsEmpty]: Start isEmpty. Operand 19249 states and 27106 transitions. [2020-10-12 18:54:41,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-12 18:54:41,534 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:54:41,535 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:54:41,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 18:54:41,535 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:54:41,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:54:41,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1352696926, now seen corresponding path program 1 times [2020-10-12 18:54:41,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:54:41,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048161266] [2020-10-12 18:54:41,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:54:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:41,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:41,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:41,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:41,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:41,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:41,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:41,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:42,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:42,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:42,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:46,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:46,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-12 18:54:46,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 18:54:46,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 18:54:46,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:46,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 18:54:46,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:54:46,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 18:54:46,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:46,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:54:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:46,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:46,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:46,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:54:46,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:46,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:54:46,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:46,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:46,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:46,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:54:46,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:46,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:54:46,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:46,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:46,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:46,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:54:46,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:46,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:54:46,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:46,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:46,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:46,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 18:54:46,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:46,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 18:54:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:46,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:46,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:46,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:54:46,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:46,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:46,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:46,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:46,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:46,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:54:46,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:46,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 18:54:46,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:46,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:46,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:46,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:54:46,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:46,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:54:46,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:46,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:46,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:46,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:54:46,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:46,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:54:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:46,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:46,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:46,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:46,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:46,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:54:46,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:46,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:46,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:46,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:54:46,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:46,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-12 18:54:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:46,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:46,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:46,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:46,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:46,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:54:46,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:46,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:46,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:46,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:54:46,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:46,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 18:54:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:46,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:46,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:46,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:54:46,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:46,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:54:46,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:46,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:54:46,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:46,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:54:46,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:47,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:54:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:47,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:47,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:47,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:47,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:47,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:47,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:47,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:47,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:47,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:54:47,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:47,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:54:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:47,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:47,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:47,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:54:47,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:47,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:47,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:47,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:47,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:47,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:54:47,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:47,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 18:54:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:47,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:47,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:47,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:54:47,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:47,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:54:47,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:47,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:54:47,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:47,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:54:47,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:47,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 18:54:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:47,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:47,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:47,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:47,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:47,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:47,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:47,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:47,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:47,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:47,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:47,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 18:54:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:47,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:47,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:47,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:47,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:47,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:54:47,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:47,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:47,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:47,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:47,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:47,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:54:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:47,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:47,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:47,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:47,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:47,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:47,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:47,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:47,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:47,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:47,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:47,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 18:54:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:47,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:47,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:47,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:54:47,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:47,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:54:47,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:47,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:47,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:54:47,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:47,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:47,159 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-12 18:54:47,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048161266] [2020-10-12 18:54:47,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:54:47,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 18:54:47,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657170261] [2020-10-12 18:54:47,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 18:54:47,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:54:47,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 18:54:47,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2020-10-12 18:54:47,161 INFO L87 Difference]: Start difference. First operand 19249 states and 27106 transitions. Second operand 20 states. [2020-10-12 18:54:48,874 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 120 [2020-10-12 18:54:49,198 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 118 [2020-10-12 18:54:49,385 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2020-10-12 18:54:49,653 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:54:51,266 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 122 [2020-10-12 18:54:51,607 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 120 [2020-10-12 18:54:51,845 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-10-12 18:54:52,169 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:54:53,846 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 119 [2020-10-12 18:54:54,172 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 119 [2020-10-12 18:54:54,417 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:54:54,687 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 121 [2020-10-12 18:54:55,062 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 121 [2020-10-12 18:54:56,829 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 120 [2020-10-12 18:54:59,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:54:59,251 INFO L93 Difference]: Finished difference Result 100887 states and 140707 transitions. [2020-10-12 18:54:59,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-10-12 18:54:59,252 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 134 [2020-10-12 18:54:59,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:54:59,480 INFO L225 Difference]: With dead ends: 100887 [2020-10-12 18:54:59,481 INFO L226 Difference]: Without dead ends: 81762 [2020-10-12 18:54:59,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2227 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=1401, Invalid=5909, Unknown=0, NotChecked=0, Total=7310 [2020-10-12 18:54:59,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81762 states. [2020-10-12 18:55:04,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81762 to 77044. [2020-10-12 18:55:04,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77044 states. [2020-10-12 18:55:05,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77044 states to 77044 states and 107496 transitions. [2020-10-12 18:55:05,006 INFO L78 Accepts]: Start accepts. Automaton has 77044 states and 107496 transitions. Word has length 134 [2020-10-12 18:55:05,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:55:05,007 INFO L479 AbstractCegarLoop]: Abstraction has 77044 states and 107496 transitions. [2020-10-12 18:55:05,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 18:55:05,007 INFO L276 IsEmpty]: Start isEmpty. Operand 77044 states and 107496 transitions. [2020-10-12 18:55:05,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-12 18:55:05,013 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:55:05,014 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:55:05,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 18:55:05,014 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:55:05,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:55:05,015 INFO L82 PathProgramCache]: Analyzing trace with hash 333482912, now seen corresponding path program 1 times [2020-10-12 18:55:05,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:55:05,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1501920424] [2020-10-12 18:55:05,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:55:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:05,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:05,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:05,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:05,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:05,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:10,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:10,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-12 18:55:10,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:55:10,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 18:55:10,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:10,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 18:55:10,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 18:55:10,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 18:55:10,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:10,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:55:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:10,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:10,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:10,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:55:10,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:10,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:10,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:10,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:10,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:10,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:10,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:10,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:55:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:10,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:10,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:10,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:55:10,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:10,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:55:10,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:10,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:55:10,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:10,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 18:55:10,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:10,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 18:55:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:10,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:10,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:10,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:55:10,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:10,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:10,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:10,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:10,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:10,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:55:10,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:10,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 18:55:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:10,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:10,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:10,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:10,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:10,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:55:10,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:10,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:10,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:10,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:55:10,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:10,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:55:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:10,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:10,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:10,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:10,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:10,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:10,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:10,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:10,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:10,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:10,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:10,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-12 18:55:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:10,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:10,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:10,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:10,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:10,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:55:10,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:10,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:10,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:10,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:10,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:10,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 18:55:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:10,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:10,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:10,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:55:10,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:10,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:55:10,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:10,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:55:10,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:10,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:55:10,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:10,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:55:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:10,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:10,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:10,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:10,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:10,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:10,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:10,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:10,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:10,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:10,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:10,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:55:10,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:10,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:10,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:10,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:55:10,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:10,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:55:10,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:10,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:10,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:10,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:55:10,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:10,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 18:55:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:10,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:10,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:10,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:55:10,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:10,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:55:10,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:10,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:55:10,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:10,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:55:10,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:10,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 18:55:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:10,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:10,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:10,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:10,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:10,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:55:10,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:10,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:10,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:10,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:10,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:10,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 18:55:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:10,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:10,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:10,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:10,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:10,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:10,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:10,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:10,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:10,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:10,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:10,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:55:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:10,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:10,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:10,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:10,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:10,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:55:10,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:10,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:10,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:10,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:10,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:10,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 18:55:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:10,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:10,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:10,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:55:10,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:10,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:55:10,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:10,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:10,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:55:10,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:10,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:10,612 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-12 18:55:10,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1501920424] [2020-10-12 18:55:10,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:55:10,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-12 18:55:10,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515353762] [2020-10-12 18:55:10,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-12 18:55:10,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:55:10,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-12 18:55:10,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2020-10-12 18:55:10,615 INFO L87 Difference]: Start difference. First operand 77044 states and 107496 transitions. Second operand 19 states. [2020-10-12 18:55:10,911 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2020-10-12 18:55:11,081 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:55:11,483 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 123 [2020-10-12 18:55:11,859 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-10-12 18:55:12,067 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-10-12 18:55:12,380 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-10-12 18:55:12,875 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 125 [2020-10-12 18:55:13,012 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-12 18:55:13,180 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2020-10-12 18:55:13,608 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 125 [2020-10-12 18:55:14,159 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-12 18:55:14,402 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-12 18:55:14,595 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-12 18:55:14,894 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-12 18:55:15,237 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2020-10-12 18:55:15,887 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 127 [2020-10-12 18:55:16,171 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2020-10-12 18:55:17,511 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:55:19,586 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2020-10-12 18:55:19,771 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2020-10-12 18:55:25,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:55:25,914 INFO L93 Difference]: Finished difference Result 120497 states and 166834 transitions. [2020-10-12 18:55:25,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2020-10-12 18:55:25,915 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 134 [2020-10-12 18:55:25,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:55:26,200 INFO L225 Difference]: With dead ends: 120497 [2020-10-12 18:55:26,200 INFO L226 Difference]: Without dead ends: 109756 [2020-10-12 18:55:26,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2003 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=1101, Invalid=5379, Unknown=0, NotChecked=0, Total=6480 [2020-10-12 18:55:26,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109756 states. [2020-10-12 18:55:34,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109756 to 104118. [2020-10-12 18:55:34,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104118 states. [2020-10-12 18:55:34,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104118 states to 104118 states and 145791 transitions. [2020-10-12 18:55:34,282 INFO L78 Accepts]: Start accepts. Automaton has 104118 states and 145791 transitions. Word has length 134 [2020-10-12 18:55:34,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:55:34,283 INFO L479 AbstractCegarLoop]: Abstraction has 104118 states and 145791 transitions. [2020-10-12 18:55:34,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-12 18:55:34,283 INFO L276 IsEmpty]: Start isEmpty. Operand 104118 states and 145791 transitions. [2020-10-12 18:55:34,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-12 18:55:34,289 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:55:34,289 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:55:34,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 18:55:34,289 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:55:34,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:55:34,290 INFO L82 PathProgramCache]: Analyzing trace with hash 832045904, now seen corresponding path program 1 times [2020-10-12 18:55:34,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:55:34,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [976570265] [2020-10-12 18:55:34,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:55:34,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:34,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:34,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:34,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:34,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:34,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:35,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-12 18:55:39,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:55:39,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5175 [2020-10-12 18:55:39,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:55:39,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:55:39,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-12 18:55:39,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:55:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:55:39,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:55:39,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:39,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:39,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:55:39,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:55:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:55:39,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:55:39,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:55:39,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:39,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 18:55:39,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 18:55:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:55:39,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:55:39,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:39,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:39,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:55:39,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 18:55:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:39,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:39,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:55:39,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:55:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:55:39,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:55:39,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:55:39,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:39,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:55:39,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:55:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:39,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:39,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:39,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:39,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:39,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:55:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:39,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:39,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:39,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:39,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:55:39,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 18:55:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:39,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:39,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:39,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:39,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:39,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-12 18:55:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:55:39,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:55:39,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:39,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:39,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:55:39,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 18:55:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:39,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:55:39,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:39,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:39,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:55:39,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 18:55:39,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:39,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:39,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:39,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:39,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:39,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:55:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:55:39,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:55:39,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:55:39,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:39,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:55:39,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-12 18:55:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:39,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:39,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:39,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:39,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:39,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 18:55:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:39,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:39,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:39,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:55:39,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:39,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:55:39,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:39,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:39,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:55:39,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:39,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:39,887 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-12 18:55:39,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [976570265] [2020-10-12 18:55:39,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:55:39,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-12 18:55:39,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900734819] [2020-10-12 18:55:39,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:55:39,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:55:39,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:55:39,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:55:39,889 INFO L87 Difference]: Start difference. First operand 104118 states and 145791 transitions. Second operand 16 states. [2020-10-12 18:55:40,141 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 114 [2020-10-12 18:55:40,752 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2020-10-12 18:55:41,435 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2020-10-12 18:55:42,740 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116