/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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 language data_model -i ../../../trunk/examples/svcomp/verifythis/tree_max.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 14:48:23,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 14:48:23,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 14:48:23,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 14:48:23,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 14:48:23,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 14:48:23,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 14:48:23,928 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 14:48:23,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 14:48:23,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 14:48:23,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 14:48:23,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 14:48:23,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 14:48:23,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 14:48:23,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 14:48:23,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 14:48:23,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 14:48:23,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 14:48:23,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 14:48:23,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 14:48:23,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 14:48:23,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 14:48:23,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 14:48:23,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 14:48:23,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 14:48:23,956 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 14:48:23,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 14:48:23,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 14:48:23,958 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 14:48:23,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 14:48:23,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 14:48:23,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 14:48:23,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 14:48:23,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 14:48:23,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 14:48:23,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 14:48:23,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 14:48:23,978 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 14:48:23,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 14:48:23,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 14:48:23,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 14:48:23,984 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 [2020-10-29 14:48:24,011 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 14:48:24,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 14:48:24,013 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 14:48:24,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 14:48:24,014 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 14:48:24,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 14:48:24,014 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 14:48:24,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 14:48:24,015 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 14:48:24,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 14:48:24,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 14:48:24,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 14:48:24,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 14:48:24,016 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 14:48:24,016 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 14:48:24,016 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 14:48:24,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 14:48:24,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 14:48:24,017 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 14:48:24,018 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 14:48:24,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 14:48:24,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 14:48:24,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 14:48:24,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 14:48:24,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 14:48:24,019 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 14:48:24,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 14:48:24,020 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 14:48:24,020 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 14:48:24,020 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 14:48:24,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 14:48:24,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 14:48:24,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 14:48:24,456 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 14:48:24,456 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 14:48:24,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/verifythis/tree_max.c [2020-10-29 14:48:24,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b451e27e/9ff22f00e20c449cb5f176aa47ce2cb1/FLAG6f7db2a69 [2020-10-29 14:48:25,258 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 14:48:25,259 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/verifythis/tree_max.c [2020-10-29 14:48:25,267 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b451e27e/9ff22f00e20c449cb5f176aa47ce2cb1/FLAG6f7db2a69 [2020-10-29 14:48:25,625 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b451e27e/9ff22f00e20c449cb5f176aa47ce2cb1 [2020-10-29 14:48:25,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 14:48:25,644 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 14:48:25,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 14:48:25,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 14:48:25,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 14:48:25,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:48:25" (1/1) ... [2020-10-29 14:48:25,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13aa0712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:48:25, skipping insertion in model container [2020-10-29 14:48:25,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:48:25" (1/1) ... [2020-10-29 14:48:25,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 14:48:25,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 14:48:25,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 14:48:25,898 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 14:48:25,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 14:48:25,951 INFO L208 MainTranslator]: Completed translation [2020-10-29 14:48:25,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:48:25 WrapperNode [2020-10-29 14:48:25,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 14:48:25,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 14:48:25,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 14:48:25,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 14:48:25,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:48:25" (1/1) ... [2020-10-29 14:48:25,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:48:25" (1/1) ... [2020-10-29 14:48:25,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:48:25" (1/1) ... [2020-10-29 14:48:25,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:48:25" (1/1) ... [2020-10-29 14:48:25,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:48:25" (1/1) ... [2020-10-29 14:48:25,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:48:25" (1/1) ... [2020-10-29 14:48:25,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:48:25" (1/1) ... [2020-10-29 14:48:25,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 14:48:26,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 14:48:26,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 14:48:26,001 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 14:48:26,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:48:25" (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 [2020-10-29 14:48:26,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 14:48:26,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 14:48:26,086 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 14:48:26,086 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 14:48:26,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 14:48:26,086 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_tree [2020-10-29 14:48:26,086 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2020-10-29 14:48:26,087 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-29 14:48:26,087 INFO L138 BoogieDeclarations]: Found implementation of procedure task [2020-10-29 14:48:26,087 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 14:48:26,087 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 14:48:26,087 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 14:48:26,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 14:48:26,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-29 14:48:26,088 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 14:48:26,088 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 14:48:26,088 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 14:48:26,088 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 14:48:26,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 14:48:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 14:48:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_tree [2020-10-29 14:48:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 14:48:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 14:48:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 14:48:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure max [2020-10-29 14:48:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 14:48:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 14:48:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-29 14:48:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure task [2020-10-29 14:48:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 14:48:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 14:48:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 14:48:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 14:48:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 14:48:26,693 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 14:48:26,693 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-29 14:48:26,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:48:26 BoogieIcfgContainer [2020-10-29 14:48:26,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 14:48:26,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 14:48:26,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 14:48:26,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 14:48:26,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 02:48:25" (1/3) ... [2020-10-29 14:48:26,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8ecc97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 02:48:26, skipping insertion in model container [2020-10-29 14:48:26,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:48:25" (2/3) ... [2020-10-29 14:48:26,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8ecc97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 02:48:26, skipping insertion in model container [2020-10-29 14:48:26,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:48:26" (3/3) ... [2020-10-29 14:48:26,712 INFO L111 eAbstractionObserver]: Analyzing ICFG tree_max.c [2020-10-29 14:48:26,730 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 14:48:26,737 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 14:48:26,755 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 14:48:26,800 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 14:48:26,800 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 14:48:26,800 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 14:48:26,800 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 14:48:26,801 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 14:48:26,801 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 14:48:26,801 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 14:48:26,802 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 14:48:26,829 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-10-29 14:48:26,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-29 14:48:26,838 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:48:26,839 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] [2020-10-29 14:48:26,840 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:48:26,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:48:26,858 INFO L82 PathProgramCache]: Analyzing trace with hash 900711335, now seen corresponding path program 1 times [2020-10-29 14:48:26,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:48:26,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1382403854] [2020-10-29 14:48:26,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:48:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:27,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:27,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:28,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:28,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-29 14:48:28,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:48:28,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1264 [2020-10-29 14:48:28,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:28,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:28,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 14:48:28,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 14:48:28,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 14:48:28,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 14:48:28,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:48:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:28,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:28,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:28,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:28,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:28,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 14:48:28,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:28,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:28,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:28,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:28,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:28,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:28,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:48:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:28,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:28,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:28,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:28,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:28,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 14:48:28,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:28,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:28,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 14:48:28,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:28,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 14:48:28,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:28,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 14:48:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:28,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:28,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:28,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:28,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:28,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:48:28,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 14:48:28,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:28,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:28,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:28,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:28,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:48:28,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:28,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 14:48:28,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1382403854] [2020-10-29 14:48:28,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:48:28,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 14:48:28,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413761936] [2020-10-29 14:48:28,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 14:48:28,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:48:28,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 14:48:28,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-29 14:48:28,733 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 10 states. [2020-10-29 14:48:29,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:48:29,680 INFO L93 Difference]: Finished difference Result 99 states and 127 transitions. [2020-10-29 14:48:29,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 14:48:29,682 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2020-10-29 14:48:29,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:48:29,694 INFO L225 Difference]: With dead ends: 99 [2020-10-29 14:48:29,694 INFO L226 Difference]: Without dead ends: 44 [2020-10-29 14:48:29,699 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-10-29 14:48:29,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-29 14:48:29,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-10-29 14:48:29,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-29 14:48:29,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2020-10-29 14:48:29,750 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 25 [2020-10-29 14:48:29,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:48:29,751 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2020-10-29 14:48:29,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 14:48:29,751 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2020-10-29 14:48:29,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-29 14:48:29,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:48:29,754 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-29 14:48:29,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 14:48:29,754 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:48:29,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:48:29,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1619052022, now seen corresponding path program 1 times [2020-10-29 14:48:29,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:48:29,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [475017552] [2020-10-29 14:48:29,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:48:29,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:29,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:29,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:30,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:30,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-29 14:48:30,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:48:30,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 755 [2020-10-29 14:48:30,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:30,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:30,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 14:48:30,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 14:48:30,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 14:48:30,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:30,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:48:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:30,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:30,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:30,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:30,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:30,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 14:48:30,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:30,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:30,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:30,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:30,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:30,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:30,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:48:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:30,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:30,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:30,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:48:30,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:30,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 14:48:30,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:30,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:30,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:48:30,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:30,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 14:48:30,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:30,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:48:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:30,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:30,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:30,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:30,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:30,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:48:30,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:30,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:30,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:30,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:30,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:48:30,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:30,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:48:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:30,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:30,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:30,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:30,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:30,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 14:48:30,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:30,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:30,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:30,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:30,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:48:30,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:30,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 14:48:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:30,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:30,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:30,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:30,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:30,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 14:48:30,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:30,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:30,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:48:30,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 14:48:30,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:48:30,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:30,788 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 14:48:30,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [475017552] [2020-10-29 14:48:30,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:48:30,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 14:48:30,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069014731] [2020-10-29 14:48:30,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 14:48:30,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:48:30,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 14:48:30,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-29 14:48:30,793 INFO L87 Difference]: Start difference. First operand 44 states and 54 transitions. Second operand 11 states. [2020-10-29 14:48:31,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:48:31,305 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions. [2020-10-29 14:48:31,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 14:48:31,305 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 35 [2020-10-29 14:48:31,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:48:31,308 INFO L225 Difference]: With dead ends: 62 [2020-10-29 14:48:31,308 INFO L226 Difference]: Without dead ends: 46 [2020-10-29 14:48:31,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2020-10-29 14:48:31,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-29 14:48:31,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-29 14:48:31,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-29 14:48:31,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2020-10-29 14:48:31,322 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 57 transitions. Word has length 35 [2020-10-29 14:48:31,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:48:31,323 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 57 transitions. [2020-10-29 14:48:31,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 14:48:31,323 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2020-10-29 14:48:31,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-29 14:48:31,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:48:31,326 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-10-29 14:48:31,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 14:48:31,326 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:48:31,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:48:31,327 INFO L82 PathProgramCache]: Analyzing trace with hash -368774840, now seen corresponding path program 1 times [2020-10-29 14:48:31,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:48:31,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580006803] [2020-10-29 14:48:31,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:48:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:31,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:31,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:32,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:32,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 14:48:32,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:48:32,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 984 [2020-10-29 14:48:32,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:32,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:32,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 14:48:32,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-29 14:48:32,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 14:48:32,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:32,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:48:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:32,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:32,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:32,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:32,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:32,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:48:32,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:32,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:32,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:32,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:32,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:32,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:32,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:48:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:32,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:32,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:32,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:48:32,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:32,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 14:48:32,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:32,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:32,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:32,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:32,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:32,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:32,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:48:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:32,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:32,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:32,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:32,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:32,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:48:32,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:32,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:32,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:32,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:32,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:32,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:32,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:48:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:32,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:32,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:32,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:32,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:32,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:48:32,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:32,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:32,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:32,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:32,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:32,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:32,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 14:48:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:32,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:32,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:32,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 14:48:32,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:32,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 14:48:32,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:32,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:32,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 14:48:32,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:32,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 14:48:32,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:32,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:48:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:32,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:32,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:32,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:32,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:32,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:48:32,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:32,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:32,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:32,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:32,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:48:32,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:32,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:48:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:32,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:32,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:32,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:32,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:32,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 14:48:32,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:32,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:32,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:32,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:32,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:48:32,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:32,761 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-29 14:48:32,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1580006803] [2020-10-29 14:48:32,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:48:32,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 14:48:32,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898900902] [2020-10-29 14:48:32,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 14:48:32,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:48:32,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 14:48:32,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-29 14:48:32,767 INFO L87 Difference]: Start difference. First operand 46 states and 57 transitions. Second operand 14 states. [2020-10-29 14:48:33,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:48:33,895 INFO L93 Difference]: Finished difference Result 60 states and 72 transitions. [2020-10-29 14:48:33,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 14:48:33,900 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 48 [2020-10-29 14:48:33,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:48:33,902 INFO L225 Difference]: With dead ends: 60 [2020-10-29 14:48:33,902 INFO L226 Difference]: Without dead ends: 57 [2020-10-29 14:48:33,906 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=110, Invalid=540, Unknown=0, NotChecked=0, Total=650 [2020-10-29 14:48:33,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-29 14:48:33,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 53. [2020-10-29 14:48:33,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-29 14:48:33,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2020-10-29 14:48:33,927 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 48 [2020-10-29 14:48:33,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:48:33,928 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2020-10-29 14:48:33,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 14:48:33,928 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2020-10-29 14:48:33,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-29 14:48:33,933 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:48:33,933 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-10-29 14:48:33,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 14:48:33,934 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:48:33,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:48:33,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1341426619, now seen corresponding path program 1 times [2020-10-29 14:48:33,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:48:33,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1173583079] [2020-10-29 14:48:33,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:48:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:33,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:34,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:38,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:38,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 14:48:38,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:48:38,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4065 [2020-10-29 14:48:38,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:38,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:38,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 14:48:38,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-29 14:48:38,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-29 14:48:38,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:38,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:48:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:38,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:38,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:38,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:38,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:38,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:48:38,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:38,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:38,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:38,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:38,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:38,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:38,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:48:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:38,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:38,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:38,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:48:38,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:38,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 14:48:38,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:38,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:38,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:38,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:38,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:38,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:38,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:48:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:38,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:38,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:38,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:38,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:38,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:48:38,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:38,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:38,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:38,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:38,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:38,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:38,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:48:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:38,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:38,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:38,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:38,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:38,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:48:38,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:38,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:38,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:38,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:38,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:38,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:38,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 14:48:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:38,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:38,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:38,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 14:48:38,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:38,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 14:48:38,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:38,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:38,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 14:48:38,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:38,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 14:48:38,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:38,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:48:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:38,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:38,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:38,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:38,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:38,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 14:48:38,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:38,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:38,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:48:38,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:38,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:48:38,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:38,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:48:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:38,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:38,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:38,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:38,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:38,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:48:38,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:38,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:38,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:38,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:38,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:48:38,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:38,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 14:48:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:38,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:38,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:38,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:38,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:38,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:48:38,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:38,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:38,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:38,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:38,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:48:38,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:38,657 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-29 14:48:38,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1173583079] [2020-10-29 14:48:38,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:48:38,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 14:48:38,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836706339] [2020-10-29 14:48:38,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 14:48:38,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:48:38,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 14:48:38,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-10-29 14:48:38,660 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand 15 states. [2020-10-29 14:48:40,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:48:40,193 INFO L93 Difference]: Finished difference Result 85 states and 106 transitions. [2020-10-29 14:48:40,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 14:48:40,194 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 58 [2020-10-29 14:48:40,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:48:40,198 INFO L225 Difference]: With dead ends: 85 [2020-10-29 14:48:40,198 INFO L226 Difference]: Without dead ends: 68 [2020-10-29 14:48:40,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=123, Invalid=579, Unknown=0, NotChecked=0, Total=702 [2020-10-29 14:48:40,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-29 14:48:40,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2020-10-29 14:48:40,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-29 14:48:40,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2020-10-29 14:48:40,216 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 58 [2020-10-29 14:48:40,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:48:40,217 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2020-10-29 14:48:40,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 14:48:40,217 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2020-10-29 14:48:40,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-29 14:48:40,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:48:40,223 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-10-29 14:48:40,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 14:48:40,223 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:48:40,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:48:40,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1892196733, now seen corresponding path program 1 times [2020-10-29 14:48:40,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:48:40,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1140704988] [2020-10-29 14:48:40,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:48:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:40,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:40,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:43,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:43,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 14:48:43,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:48:43,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2923 [2020-10-29 14:48:43,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:43,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:43,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 14:48:43,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-29 14:48:43,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-29 14:48:43,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:43,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:48:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:43,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:43,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:43,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:43,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:43,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:48:43,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:43,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:43,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:43,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:43,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:43,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:43,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:48:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:43,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:43,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:43,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:48:43,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:43,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-29 14:48:43,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:43,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:43,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:48:43,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:43,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 14:48:43,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:43,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:48:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:43,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:43,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:43,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:43,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:43,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:48:43,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:43,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:43,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:43,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:43,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:43,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:43,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:48:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:43,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:43,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:43,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:43,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:43,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:48:43,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:43,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:43,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 14:48:43,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:43,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 14:48:43,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:43,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 14:48:43,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:43,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:43,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:43,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:43,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 14:48:43,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:48:43,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 14:48:43,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:43,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:43,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:43,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:43,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 14:48:43,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:43,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:48:43,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:43,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:43,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:43,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:43,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:43,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:48:43,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:43,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:43,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:43,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:43,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:43,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:43,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:48:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:43,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:43,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:43,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:43,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:43,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:48:43,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:43,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:43,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:43,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:43,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:43,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:43,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 14:48:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:43,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:43,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:43,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:43,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:43,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:48:43,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:43,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:43,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:43,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:43,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:48:43,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:43,848 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-29 14:48:43,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1140704988] [2020-10-29 14:48:43,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:48:43,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 14:48:43,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848046963] [2020-10-29 14:48:43,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 14:48:43,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:48:43,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 14:48:43,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-10-29 14:48:43,851 INFO L87 Difference]: Start difference. First operand 67 states and 86 transitions. Second operand 15 states. [2020-10-29 14:48:45,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:48:45,229 INFO L93 Difference]: Finished difference Result 105 states and 132 transitions. [2020-10-29 14:48:45,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 14:48:45,230 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 58 [2020-10-29 14:48:45,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:48:45,232 INFO L225 Difference]: With dead ends: 105 [2020-10-29 14:48:45,232 INFO L226 Difference]: Without dead ends: 81 [2020-10-29 14:48:45,237 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2020-10-29 14:48:45,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-29 14:48:45,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 80. [2020-10-29 14:48:45,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-29 14:48:45,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 103 transitions. [2020-10-29 14:48:45,280 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 103 transitions. Word has length 58 [2020-10-29 14:48:45,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:48:45,281 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 103 transitions. [2020-10-29 14:48:45,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 14:48:45,281 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 103 transitions. [2020-10-29 14:48:45,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-29 14:48:45,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:48:45,286 INFO L422 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 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] [2020-10-29 14:48:45,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 14:48:45,286 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:48:45,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:48:45,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1019792416, now seen corresponding path program 2 times [2020-10-29 14:48:45,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:48:45,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1105674059] [2020-10-29 14:48:45,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:48:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:45,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:45,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:47,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:47,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-29 14:48:47,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:48:47,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2665 [2020-10-29 14:48:47,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:47,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:47,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 14:48:47,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-29 14:48:47,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-29 14:48:47,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:48,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:48:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:48,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:48,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:48,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:48,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:48,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:48:48,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:48,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:48,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:48,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:48,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:48,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:48,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:48:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:48,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:48,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:48,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 14:48:48,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:48,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 14:48:48,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:48,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:48,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:48,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:48,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:48,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:48,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:48:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:48,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:48,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:48,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:48,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:48,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:48:48,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:48,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:48,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:48,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:48,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:48,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:48,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:48:48,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:48,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:48,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:48,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:48:48,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:48,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 14:48:48,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:48,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:48,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:48,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:48,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:48,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:48,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:48:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:48,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:48,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:48,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:48,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:48,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:48:48,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:48,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:48,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:48,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:48,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:48,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:48,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:48:48,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:48,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:48,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:48,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:48,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:48,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:48:48,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:48,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:48,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:48,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:48,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:48,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:48,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 14:48:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:48,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:48,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:48,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 14:48:48,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:48,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 14:48:48,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:48,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:48,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 14:48:48,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:48,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 14:48:48,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:48,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:48:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:48,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:48,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:48,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:48,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:48,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:48:48,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:48,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:48,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:48,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:48,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:48:48,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:48,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:48:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:48,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:48,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:48,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:48,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:48,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 14:48:48,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:48,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:48,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:48:48,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:48,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:48:48,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:48,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 14:48:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:48,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:48,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:48,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:48,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:48,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:48:48,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:48,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:48,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:48,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:48,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:48:48,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:48,522 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-29 14:48:48,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1105674059] [2020-10-29 14:48:48,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:48:48,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 14:48:48,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919283844] [2020-10-29 14:48:48,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 14:48:48,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:48:48,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 14:48:48,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-29 14:48:48,527 INFO L87 Difference]: Start difference. First operand 80 states and 103 transitions. Second operand 14 states. [2020-10-29 14:48:50,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:48:50,020 INFO L93 Difference]: Finished difference Result 129 states and 168 transitions. [2020-10-29 14:48:50,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 14:48:50,022 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 68 [2020-10-29 14:48:50,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:48:50,026 INFO L225 Difference]: With dead ends: 129 [2020-10-29 14:48:50,026 INFO L226 Difference]: Without dead ends: 105 [2020-10-29 14:48:50,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650 [2020-10-29 14:48:50,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-29 14:48:50,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 90. [2020-10-29 14:48:50,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-29 14:48:50,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 123 transitions. [2020-10-29 14:48:50,074 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 123 transitions. Word has length 68 [2020-10-29 14:48:50,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:48:50,075 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 123 transitions. [2020-10-29 14:48:50,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 14:48:50,075 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 123 transitions. [2020-10-29 14:48:50,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-29 14:48:50,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:48:50,077 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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] [2020-10-29 14:48:50,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 14:48:50,078 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:48:50,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:48:50,080 INFO L82 PathProgramCache]: Analyzing trace with hash -157158818, now seen corresponding path program 3 times [2020-10-29 14:48:50,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:48:50,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1920420218] [2020-10-29 14:48:50,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:48:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:50,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:50,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:50,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:51,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:52,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:55,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:55,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 14:48:55,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 14:48:55,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 14:48:55,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:55,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:55,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-29 14:48:55,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 14:48:55,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-29 14:48:55,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:55,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:48:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:55,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:55,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:55,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:55,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:55,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 14:48:55,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:55,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:55,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:55,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:55,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:55,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:55,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:48:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:55,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:55,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:55,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 14:48:55,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:55,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-29 14:48:55,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:55,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:55,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 14:48:55,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:55,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-29 14:48:55,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:55,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:48:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:55,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:55,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:55,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:55,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:55,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 14:48:55,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:55,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:55,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:48:55,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:48:55,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:48:55,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:56,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:48:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:56,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:56,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:56,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:48:56,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:56,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-29 14:48:56,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:56,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:56,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 14:48:56,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:48:56,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 14:48:56,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:56,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:48:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:56,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:56,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:56,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:56,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:56,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 14:48:56,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:56,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:56,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:48:56,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:48:56,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:48:56,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:56,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:48:56,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:56,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:56,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:56,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:56,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:56,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 14:48:56,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:56,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:56,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:48:56,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:48:56,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:48:56,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:56,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 14:48:56,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:56,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:56,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:56,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:56,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-29 14:48:56,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:48:56,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 471 [2020-10-29 14:48:56,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:56,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:56,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 14:48:56,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:56,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-29 14:48:56,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:57,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:48:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:57,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:57,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:57,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:57,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:57,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:48:57,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:57,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:57,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:57,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:57,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:48:57,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:57,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:48:57,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:57,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:57,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:57,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 14:48:57,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:57,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 14:48:57,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:57,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:57,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 14:48:57,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:57,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 14:48:57,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:57,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:48:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:57,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:57,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:57,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:57,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:57,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 14:48:57,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:57,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:57,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:48:57,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:57,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:48:57,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:57,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:48:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:57,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:57,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:57,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:57,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:57,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:48:57,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:57,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:57,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:57,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:57,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:48:57,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:57,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 14:48:57,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:57,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:57,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:57,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:57,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:57,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:48:57,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:57,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:57,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:48:57,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:57,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:48:57,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:57,465 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 44 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-10-29 14:48:57,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1920420218] [2020-10-29 14:48:57,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:48:57,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-29 14:48:57,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348789202] [2020-10-29 14:48:57,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-29 14:48:57,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:48:57,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-29 14:48:57,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=1047, Unknown=0, NotChecked=0, Total=1122 [2020-10-29 14:48:57,469 INFO L87 Difference]: Start difference. First operand 90 states and 123 transitions. Second operand 34 states. [2020-10-29 14:49:01,210 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2020-10-29 14:49:02,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:49:02,577 INFO L93 Difference]: Finished difference Result 167 states and 253 transitions. [2020-10-29 14:49:02,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-29 14:49:02,578 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 81 [2020-10-29 14:49:02,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:49:02,582 INFO L225 Difference]: With dead ends: 167 [2020-10-29 14:49:02,583 INFO L226 Difference]: Without dead ends: 164 [2020-10-29 14:49:02,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 589 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=477, Invalid=4079, Unknown=0, NotChecked=0, Total=4556 [2020-10-29 14:49:02,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-29 14:49:02,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 139. [2020-10-29 14:49:02,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-10-29 14:49:02,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 216 transitions. [2020-10-29 14:49:02,622 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 216 transitions. Word has length 81 [2020-10-29 14:49:02,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:49:02,623 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 216 transitions. [2020-10-29 14:49:02,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-29 14:49:02,623 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 216 transitions. [2020-10-29 14:49:02,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-29 14:49:02,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:49:02,626 INFO L422 BasicCegarLoop]: trace histogram [7, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 14:49:02,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 14:49:02,627 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:49:02,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:49:02,628 INFO L82 PathProgramCache]: Analyzing trace with hash 939934977, now seen corresponding path program 4 times [2020-10-29 14:49:02,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:49:02,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699067966] [2020-10-29 14:49:02,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:49:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:02,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:02,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:03,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:03,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:03,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:05,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:06,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:07,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:07,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-29 14:49:07,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 14:49:07,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 14:49:07,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:07,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:07,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 14:49:07,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 14:49:07,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-29 14:49:07,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:07,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:49:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:07,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:07,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:07,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:07,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:07,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:49:07,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:07,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:07,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:07,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:07,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:07,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:07,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:49:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:07,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:08,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:08,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 14:49:08,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:08,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-10-29 14:49:08,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:08,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:08,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 14:49:08,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:08,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 14:49:08,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:08,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:49:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:08,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:08,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:08,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:08,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:08,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:49:08,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:08,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:08,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:08,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:08,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:49:08,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:49:08,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:49:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:08,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:08,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:08,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 14:49:08,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:08,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-29 14:49:08,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:08,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:08,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 14:49:08,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:08,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-29 14:49:08,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:08,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:49:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:08,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:08,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:08,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:08,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:08,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:49:08,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:08,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:08,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:08,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:08,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:08,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:08,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:49:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:08,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:08,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:08,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:49:08,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:08,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 14:49:08,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:08,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:08,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:49:08,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:08,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 14:49:08,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:08,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:49:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:08,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:08,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:08,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:08,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:08,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:49:08,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:08,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:08,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:08,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:08,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:49:08,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:08,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:49:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:08,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:08,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:08,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:08,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:08,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:49:08,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:08,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:08,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:08,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:08,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:49:08,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:08,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:49:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:08,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:08,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:08,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-29 14:49:08,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:08,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-29 14:49:08,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:08,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:08,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 14:49:08,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 14:49:08,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-29 14:49:08,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:08,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:49:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:08,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:08,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:08,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:08,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:08,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:49:08,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:08,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:08,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:08,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:08,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:08,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:08,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:49:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:08,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:08,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:08,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 14:49:08,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:08,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 14:49:08,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:08,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:08,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 14:49:08,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:08,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 14:49:08,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:08,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:49:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:09,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:09,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:09,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:09,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:09,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:49:09,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:09,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:09,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:09,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:09,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:09,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:09,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:49:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:09,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:09,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:09,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:09,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:09,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:49:09,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:09,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:09,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:49:09,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:09,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:49:09,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:09,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 14:49:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:09,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:09,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:09,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:09,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:09,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:49:09,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:09,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:09,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:09,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 14:49:09,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:09,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:09,152 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 44 proven. 29 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-10-29 14:49:09,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699067966] [2020-10-29 14:49:09,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:49:09,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-29 14:49:09,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236749058] [2020-10-29 14:49:09,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-29 14:49:09,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:49:09,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-29 14:49:09,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=378, Unknown=0, NotChecked=0, Total=420 [2020-10-29 14:49:09,158 INFO L87 Difference]: Start difference. First operand 139 states and 216 transitions. Second operand 21 states. [2020-10-29 14:49:11,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:49:11,179 INFO L93 Difference]: Finished difference Result 205 states and 335 transitions. [2020-10-29 14:49:11,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 14:49:11,182 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 91 [2020-10-29 14:49:11,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:49:11,185 INFO L225 Difference]: With dead ends: 205 [2020-10-29 14:49:11,185 INFO L226 Difference]: Without dead ends: 175 [2020-10-29 14:49:11,187 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=163, Invalid=1097, Unknown=0, NotChecked=0, Total=1260 [2020-10-29 14:49:11,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-10-29 14:49:11,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 169. [2020-10-29 14:49:11,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-29 14:49:11,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 291 transitions. [2020-10-29 14:49:11,264 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 291 transitions. Word has length 91 [2020-10-29 14:49:11,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:49:11,265 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 291 transitions. [2020-10-29 14:49:11,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-29 14:49:11,265 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 291 transitions. [2020-10-29 14:49:11,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-29 14:49:11,274 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:49:11,274 INFO L422 BasicCegarLoop]: trace histogram [7, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 14:49:11,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 14:49:11,274 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:49:11,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:49:11,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1701876517, now seen corresponding path program 5 times [2020-10-29 14:49:11,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:49:11,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [641794767] [2020-10-29 14:49:11,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:49:11,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:11,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:11,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:12,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:12,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:16,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:16,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-29 14:49:16,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 14:49:16,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-29 14:49:16,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:16,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:16,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 14:49:16,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-29 14:49:16,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 14:49:16,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:16,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:49:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:16,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:16,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:16,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:16,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:16,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:49:16,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:16,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:16,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:16,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:16,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:16,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:16,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:49:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:16,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:16,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:16,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 14:49:16,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:16,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 14:49:16,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:16,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:16,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:16,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:16,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:16,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:16,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:49:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:16,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:16,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:16,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:16,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:16,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:49:16,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:16,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:16,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:16,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:16,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:16,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:16,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:49:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:16,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:16,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:16,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 14:49:16,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:16,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 14:49:16,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:16,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:16,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:16,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:16,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:16,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:16,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:49:16,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:16,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:16,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:16,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:49:16,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:16,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 14:49:16,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:16,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:16,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:16,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:16,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:16,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:16,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:49:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:16,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:16,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:16,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:16,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:16,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:49:16,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:16,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:16,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:16,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:16,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:16,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:16,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:49:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:16,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:16,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:16,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:16,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:16,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:49:16,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:16,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:16,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:16,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:16,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:16,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:16,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 14:49:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:16,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:16,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:16,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:16,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:16,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:49:16,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:16,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:16,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:16,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:16,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:16,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:16,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:49:16,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:16,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:16,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:17,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:17,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-29 14:49:17,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:49:17,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 456 [2020-10-29 14:49:17,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:17,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:17,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 14:49:17,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:17,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-29 14:49:17,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:49:17,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:49:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:17,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:17,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:17,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:17,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:17,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:49:17,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:17,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:17,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:17,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:17,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:17,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:49:17,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:49:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:17,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:17,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:17,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 14:49:17,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:17,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-29 14:49:17,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:17,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:17,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 14:49:17,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:17,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 14:49:17,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:49:17,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:49:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:17,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:17,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:17,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:17,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:17,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:49:17,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:17,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:17,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:49:17,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:17,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:17,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:49:17,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:49:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:17,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:17,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:17,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:17,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:17,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:49:17,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:17,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:17,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:17,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:17,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:17,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:17,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 14:49:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:17,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:17,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:17,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:17,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:17,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:49:17,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:17,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:17,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:17,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:17,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:17,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:17,589 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 13 proven. 21 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-10-29 14:49:17,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [641794767] [2020-10-29 14:49:17,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:49:17,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 14:49:17,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010783228] [2020-10-29 14:49:17,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 14:49:17,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:49:17,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 14:49:17,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=419, Unknown=0, NotChecked=0, Total=462 [2020-10-29 14:49:17,600 INFO L87 Difference]: Start difference. First operand 169 states and 291 transitions. Second operand 22 states. [2020-10-29 14:49:20,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:49:20,712 INFO L93 Difference]: Finished difference Result 281 states and 573 transitions. [2020-10-29 14:49:20,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-29 14:49:20,713 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 91 [2020-10-29 14:49:20,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:49:20,718 INFO L225 Difference]: With dead ends: 281 [2020-10-29 14:49:20,718 INFO L226 Difference]: Without dead ends: 278 [2020-10-29 14:49:20,720 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=274, Invalid=1796, Unknown=0, NotChecked=0, Total=2070 [2020-10-29 14:49:20,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-29 14:49:20,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 180. [2020-10-29 14:49:20,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-10-29 14:49:20,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 321 transitions. [2020-10-29 14:49:20,769 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 321 transitions. Word has length 91 [2020-10-29 14:49:20,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:49:20,770 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 321 transitions. [2020-10-29 14:49:20,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 14:49:20,770 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 321 transitions. [2020-10-29 14:49:20,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-29 14:49:20,773 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:49:20,774 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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] [2020-10-29 14:49:20,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 14:49:20,774 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:49:20,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:49:20,775 INFO L82 PathProgramCache]: Analyzing trace with hash -228966560, now seen corresponding path program 1 times [2020-10-29 14:49:20,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:49:20,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [823764845] [2020-10-29 14:49:20,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:49:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:20,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:20,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:21,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:22,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:22,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:23,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:23,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:25,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:25,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 14:49:25,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 14:49:25,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 14:49:25,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:25,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:25,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-29 14:49:25,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 14:49:25,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-29 14:49:25,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:26,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:49:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:26,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:26,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:26,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:26,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:26,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:49:26,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:26,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:26,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:26,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:26,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:26,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:26,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:49:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:26,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:26,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:26,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 14:49:26,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:26,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-29 14:49:26,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:26,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:26,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 14:49:26,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:26,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-29 14:49:26,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:26,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:49:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:26,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:26,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:26,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:26,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:26,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:49:26,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:26,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:26,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:49:26,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:49:26,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:49:26,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:26,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:49:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:26,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:26,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:26,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:49:26,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:26,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 14:49:26,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:26,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:26,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 14:49:26,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:49:26,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 14:49:26,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:26,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:49:26,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:26,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:26,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:26,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:26,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:26,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:49:26,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:26,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:26,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:49:26,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:49:26,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:49:26,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:26,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:49:26,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:26,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:26,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:26,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:26,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:26,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:49:26,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:26,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:26,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:49:26,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:49:26,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:49:26,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:26,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 14:49:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:26,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:26,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:27,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:27,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:27,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:27,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-29 14:49:27,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 14:49:27,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 467 [2020-10-29 14:49:27,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:27,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:27,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 14:49:27,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 14:49:27,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 14:49:27,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:27,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:49:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:27,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:27,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:27,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:27,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:27,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:49:27,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:27,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:27,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 14:49:27,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:27,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:49:27,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:27,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:49:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:27,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:27,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:27,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:27,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 14:49:27,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:49:27,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 14:49:27,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:27,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:27,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 14:49:27,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:27,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 14:49:27,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:27,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:49:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:27,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:27,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:27,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:27,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:27,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:49:27,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:27,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:27,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:27,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:27,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:27,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:27,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:49:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:27,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:27,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:27,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:27,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:27,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:49:27,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:27,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:27,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:27,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:27,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:27,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:27,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 14:49:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:27,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:27,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:27,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:27,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:27,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:49:27,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:27,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:27,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:49:27,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:27,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:49:27,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:27,893 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 15 proven. 34 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-29 14:49:27,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [823764845] [2020-10-29 14:49:27,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:49:27,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-29 14:49:27,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847261342] [2020-10-29 14:49:27,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-29 14:49:27,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:49:27,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-29 14:49:27,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1043, Unknown=0, NotChecked=0, Total=1122 [2020-10-29 14:49:27,895 INFO L87 Difference]: Start difference. First operand 180 states and 321 transitions. Second operand 34 states. [2020-10-29 14:49:31,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:49:31,364 INFO L93 Difference]: Finished difference Result 427 states and 1039 transitions. [2020-10-29 14:49:31,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-29 14:49:31,365 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 82 [2020-10-29 14:49:31,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:49:31,375 INFO L225 Difference]: With dead ends: 427 [2020-10-29 14:49:31,376 INFO L226 Difference]: Without dead ends: 277 [2020-10-29 14:49:31,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=315, Invalid=2765, Unknown=0, NotChecked=0, Total=3080 [2020-10-29 14:49:31,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-10-29 14:49:31,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 203. [2020-10-29 14:49:31,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-29 14:49:31,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 377 transitions. [2020-10-29 14:49:31,440 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 377 transitions. Word has length 82 [2020-10-29 14:49:31,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:49:31,441 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 377 transitions. [2020-10-29 14:49:31,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-29 14:49:31,441 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 377 transitions. [2020-10-29 14:49:31,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-29 14:49:31,446 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:49:31,446 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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] [2020-10-29 14:49:31,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 14:49:31,447 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:49:31,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:49:31,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1982791236, now seen corresponding path program 1 times [2020-10-29 14:49:31,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:49:31,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [161260585] [2020-10-29 14:49:31,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:49:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:31,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:31,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:31,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:32,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:32,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:32,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:36,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:36,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-29 14:49:36,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 14:49:36,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-29 14:49:36,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:36,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:36,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-29 14:49:36,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 14:49:36,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-29 14:49:36,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:36,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:49:36,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:36,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:36,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:36,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:36,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:36,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:49:36,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:36,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:36,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:36,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:36,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:36,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:49:36,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:49:36,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:37,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:37,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:37,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 14:49:37,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:37,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-10-29 14:49:37,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:37,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:37,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 14:49:37,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:37,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-29 14:49:37,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:49:37,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:49:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:37,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:37,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:37,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:37,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:37,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 14:49:37,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:37,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:37,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:49:37,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:49:37,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:49:37,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:37,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:49:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:37,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:37,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:37,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:49:37,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:37,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-29 14:49:37,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:37,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:37,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 14:49:37,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:49:37,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 14:49:37,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:37,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:49:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:37,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:37,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:37,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:37,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:37,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:49:37,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:37,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:37,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:49:37,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:49:37,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:49:37,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:37,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:49:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:37,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:37,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:37,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:37,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:37,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:49:37,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:37,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:37,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:49:37,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:49:37,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:49:37,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:37,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 14:49:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:37,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:37,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:37,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:38,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:38,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-29 14:49:38,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 14:49:38,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 625 [2020-10-29 14:49:38,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:38,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:38,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 14:49:38,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:38,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-29 14:49:38,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:38,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:49:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:38,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:38,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:38,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:38,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:38,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:49:38,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:38,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:38,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:38,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:38,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:38,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:38,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:49:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:38,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:38,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:38,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:38,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 14:49:38,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:49:38,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-29 14:49:38,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:38,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:38,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 14:49:38,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:38,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 14:49:38,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:38,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:49:38,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:38,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:38,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:38,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:38,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:38,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:49:38,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:38,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:38,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:38,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:38,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:38,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:38,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:49:38,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:38,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:38,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:38,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:38,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:38,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:49:38,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:38,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:38,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:49:38,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:38,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:38,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:39,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 14:49:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:39,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:39,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:39,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:39,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:39,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:49:39,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:39,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:39,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:49:39,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:39,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:49:39,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:39,124 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 15 proven. 43 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-10-29 14:49:39,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [161260585] [2020-10-29 14:49:39,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:49:39,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-29 14:49:39,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287199375] [2020-10-29 14:49:39,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-29 14:49:39,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:49:39,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-29 14:49:39,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1112, Unknown=0, NotChecked=0, Total=1190 [2020-10-29 14:49:39,126 INFO L87 Difference]: Start difference. First operand 203 states and 377 transitions. Second operand 35 states. [2020-10-29 14:49:43,546 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2020-10-29 14:49:44,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:49:44,439 INFO L93 Difference]: Finished difference Result 310 states and 634 transitions. [2020-10-29 14:49:44,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-29 14:49:44,440 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 83 [2020-10-29 14:49:44,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:49:44,446 INFO L225 Difference]: With dead ends: 310 [2020-10-29 14:49:44,446 INFO L226 Difference]: Without dead ends: 307 [2020-10-29 14:49:44,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=445, Invalid=3845, Unknown=0, NotChecked=0, Total=4290 [2020-10-29 14:49:44,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-10-29 14:49:44,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 278. [2020-10-29 14:49:44,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-29 14:49:44,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 574 transitions. [2020-10-29 14:49:44,496 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 574 transitions. Word has length 83 [2020-10-29 14:49:44,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:49:44,496 INFO L481 AbstractCegarLoop]: Abstraction has 278 states and 574 transitions. [2020-10-29 14:49:44,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-10-29 14:49:44,496 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 574 transitions. [2020-10-29 14:49:44,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-29 14:49:44,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:49:44,501 INFO L422 BasicCegarLoop]: trace histogram [7, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 14:49:44,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 14:49:44,502 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:49:44,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:49:44,502 INFO L82 PathProgramCache]: Analyzing trace with hash -397815559, now seen corresponding path program 2 times [2020-10-29 14:49:44,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:49:44,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [453936881] [2020-10-29 14:49:44,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:49:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:44,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:44,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:45,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:49,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:49,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:49,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-29 14:49:49,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 14:49:49,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-29 14:49:49,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:49,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:49,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 14:49:49,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-29 14:49:49,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-29 14:49:49,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:49,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:49:49,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:49,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:49,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:49,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:49,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:49,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:49:49,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:49,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:49,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:49,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:49,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:49,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:49,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:49:49,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:49,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:49,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:49,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 14:49:49,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:49,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 14:49:49,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:49,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:49,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:49,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:49,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:49,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:49,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:49:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:49,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:49,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:49,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:49,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:49,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:49:49,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:49,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:49,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:49,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:49,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:49,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:49,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:49:49,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:49,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:49,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:49,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 14:49:49,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:49,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 14:49:49,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:49,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:49,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:49,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:49,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:49,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:49,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:49:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:49,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:49,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:49,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:49:49,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:49,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 14:49:49,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:49,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:49,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:49,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:49,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:49,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:49:49,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:49:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:49,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:49,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:49,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:49,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:49,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:49:49,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:49,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:49,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:49,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:49,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:49,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:49:49,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:49:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:49,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:49,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:49,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:49,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:49,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:49:49,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:49,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:49,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:49,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:49,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:49,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:49:49,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 14:49:49,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:49,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:49,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:49,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:49,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:49,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:49:49,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:49,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:49,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:49,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:49,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:49,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:49,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:49:49,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:49,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:49,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:50,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:50,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:50,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:50,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-29 14:49:50,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 14:49:50,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 483 [2020-10-29 14:49:50,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:50,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:50,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 14:49:50,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:50,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-29 14:49:50,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:50,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:49:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:50,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:50,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:50,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:50,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:50,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:49:50,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:50,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:50,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:50,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:50,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:50,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:50,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:49:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:50,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:50,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:50,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:50,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 14:49:50,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:49:50,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-29 14:49:50,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:50,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:50,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 14:49:50,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:50,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 14:49:50,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:50,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:49:50,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:50,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:50,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:50,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:50,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:50,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:49:50,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:50,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:50,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:50,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:50,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:50,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:50,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:49:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:50,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:50,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:50,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:50,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:50,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:49:50,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:50,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:50,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:50,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:50,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:50,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:50,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 14:49:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:50,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:50,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:50,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:50,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:50,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:49:50,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:50,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:50,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:50,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:50,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:50,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:50,785 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 15 proven. 16 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2020-10-29 14:49:50,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [453936881] [2020-10-29 14:49:50,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:49:50,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-29 14:49:50,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158434301] [2020-10-29 14:49:50,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-29 14:49:50,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:49:50,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-29 14:49:50,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-10-29 14:49:50,787 INFO L87 Difference]: Start difference. First operand 278 states and 574 transitions. Second operand 21 states. [2020-10-29 14:49:53,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:49:53,423 INFO L93 Difference]: Finished difference Result 385 states and 780 transitions. [2020-10-29 14:49:53,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 14:49:53,424 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 93 [2020-10-29 14:49:53,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:49:53,430 INFO L225 Difference]: With dead ends: 385 [2020-10-29 14:49:53,431 INFO L226 Difference]: Without dead ends: 382 [2020-10-29 14:49:53,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=208, Invalid=1432, Unknown=0, NotChecked=0, Total=1640 [2020-10-29 14:49:53,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2020-10-29 14:49:53,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 270. [2020-10-29 14:49:53,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-10-29 14:49:53,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 542 transitions. [2020-10-29 14:49:53,490 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 542 transitions. Word has length 93 [2020-10-29 14:49:53,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:49:53,490 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 542 transitions. [2020-10-29 14:49:53,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-29 14:49:53,490 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 542 transitions. [2020-10-29 14:49:53,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-29 14:49:53,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:49:53,495 INFO L422 BasicCegarLoop]: trace histogram [7, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 14:49:53,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 14:49:53,496 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:49:53,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:49:53,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1859095448, now seen corresponding path program 1 times [2020-10-29 14:49:53,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:49:53,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710411215] [2020-10-29 14:49:53,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:49:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:53,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:53,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:55,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:55,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:57,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:57,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:58,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:58,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:58,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-29 14:49:58,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 14:49:58,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-29 14:49:58,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:58,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:58,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 14:49:58,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-29 14:49:58,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-29 14:49:58,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:58,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:49:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:58,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:58,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:58,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:58,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:58,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:49:58,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:58,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:58,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:58,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:49:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:58,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:58,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:58,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 14:49:58,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:58,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 14:49:58,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:58,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:58,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:58,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:58,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:58,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:58,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:49:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:58,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:58,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:58,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:58,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:58,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:49:58,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:58,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:58,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:58,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:58,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:58,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:58,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:49:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:58,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:58,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:58,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 14:49:58,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:58,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 14:49:58,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:58,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:58,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:58,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:58,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:58,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:58,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:49:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:58,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:58,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:58,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:49:58,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:58,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 14:49:58,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:58,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:58,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:58,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:58,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:58,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:58,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:49:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:58,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:58,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:58,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:58,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:58,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:49:58,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:58,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:58,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:58,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:58,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:58,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:58,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:49:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:58,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:58,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:58,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:58,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:58,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:49:58,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:58,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:58,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:58,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:58,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:58,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:58,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 14:49:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:58,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:58,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:58,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:58,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:58,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:49:58,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:58,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:58,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:58,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:58,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:58,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:58,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:49:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:58,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:58,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:58,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:58,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-29 14:49:58,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:49:58,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-29 14:49:58,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:58,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:58,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 14:49:58,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:58,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-29 14:49:58,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:59,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:49:59,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:59,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:59,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:59,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:59,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:59,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:49:59,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:59,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:59,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:59,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:59,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:59,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:59,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:49:59,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:59,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:59,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:59,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:59,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 14:49:59,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:49:59,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 14:49:59,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:59,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:59,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 14:49:59,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:59,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 14:49:59,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:59,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:49:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:59,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:59,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:59,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:59,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:59,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:49:59,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:59,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:59,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:59,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:49:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:59,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:59,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:59,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:59,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:59,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:49:59,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:59,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:59,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:49:59,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:59,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:59,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:59,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 14:49:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:59,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:59,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:59,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:59,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:59,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:49:59,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:59,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:59,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:59,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:59,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:59,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:59,335 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 15 proven. 20 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-10-29 14:49:59,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1710411215] [2020-10-29 14:49:59,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:49:59,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 14:49:59,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753273712] [2020-10-29 14:49:59,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 14:49:59,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:49:59,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 14:49:59,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=419, Unknown=0, NotChecked=0, Total=462 [2020-10-29 14:49:59,339 INFO L87 Difference]: Start difference. First operand 270 states and 542 transitions. Second operand 22 states. [2020-10-29 14:50:02,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:50:02,339 INFO L93 Difference]: Finished difference Result 351 states and 641 transitions. [2020-10-29 14:50:02,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 14:50:02,340 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 93 [2020-10-29 14:50:02,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:50:02,346 INFO L225 Difference]: With dead ends: 351 [2020-10-29 14:50:02,346 INFO L226 Difference]: Without dead ends: 348 [2020-10-29 14:50:02,348 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=219, Invalid=1587, Unknown=0, NotChecked=0, Total=1806 [2020-10-29 14:50:02,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-10-29 14:50:02,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 264. [2020-10-29 14:50:02,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-10-29 14:50:02,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 519 transitions. [2020-10-29 14:50:02,395 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 519 transitions. Word has length 93 [2020-10-29 14:50:02,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:50:02,395 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 519 transitions. [2020-10-29 14:50:02,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 14:50:02,395 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 519 transitions. [2020-10-29 14:50:02,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-29 14:50:02,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:50:02,400 INFO L422 BasicCegarLoop]: trace histogram [7, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 14:50:02,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 14:50:02,400 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:50:02,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:50:02,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1474257831, now seen corresponding path program 1 times [2020-10-29 14:50:02,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:50:02,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2099033088] [2020-10-29 14:50:02,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:50:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:02,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:02,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:03,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:07,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:07,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-29 14:50:07,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 14:50:07,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-29 14:50:07,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:07,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:07,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 14:50:07,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-29 14:50:07,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-29 14:50:07,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:07,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:50:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:07,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:07,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:07,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:07,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:07,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:50:07,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:07,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:07,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:07,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:07,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:07,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:07,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:50:07,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:07,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:07,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:07,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 14:50:07,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:07,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-29 14:50:07,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:07,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:07,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 14:50:07,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:07,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 14:50:07,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:07,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:50:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:07,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:07,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:07,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:07,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:07,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:50:07,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:07,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:07,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:07,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:07,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:07,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:07,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:50:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:07,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:08,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:08,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 14:50:08,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:08,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-29 14:50:08,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:08,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:08,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 14:50:08,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:08,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-29 14:50:08,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:08,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:50:08,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:08,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:08,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:08,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:50:08,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:08,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 14:50:08,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:08,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:08,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:08,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:08,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 14:50:08,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:08,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:50:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:08,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:08,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:08,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:08,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:08,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:08,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:08,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:08,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:08,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:08,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:50:08,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:08,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:50:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:08,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:08,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:08,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:08,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:08,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:08,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:08,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:08,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:08,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:08,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:50:08,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:08,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 14:50:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:08,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:08,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:08,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:08,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:08,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:50:08,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:08,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:08,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:08,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:50:08,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:50:08,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:08,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:50:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:08,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:08,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:08,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-29 14:50:08,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:08,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-29 14:50:08,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:08,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:08,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 14:50:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 14:50:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-29 14:50:08,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:08,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:50:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:08,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:08,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:08,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:08,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:08,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:08,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:08,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:08,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:08,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:08,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:08,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:08,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:50:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:08,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:08,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:08,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 14:50:08,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:08,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 14:50:08,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:08,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:08,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 14:50:08,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:08,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 14:50:08,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:08,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:50:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:08,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:08,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:08,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:08,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:08,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:50:08,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:08,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:08,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:50:08,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:08,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:50:08,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:08,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:50:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:08,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:08,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:08,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:08,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:08,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:08,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:08,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:08,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:08,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:08,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:08,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:08,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 14:50:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:08,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:08,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:08,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:08,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:08,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:50:08,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:08,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:08,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:08,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 14:50:08,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:08,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:08,807 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 44 proven. 37 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-10-29 14:50:08,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2099033088] [2020-10-29 14:50:08,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:50:08,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 14:50:08,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99315220] [2020-10-29 14:50:08,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 14:50:08,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:50:08,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 14:50:08,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=418, Unknown=0, NotChecked=0, Total=462 [2020-10-29 14:50:08,809 INFO L87 Difference]: Start difference. First operand 264 states and 519 transitions. Second operand 22 states. [2020-10-29 14:50:11,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:50:11,877 INFO L93 Difference]: Finished difference Result 432 states and 916 transitions. [2020-10-29 14:50:11,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-29 14:50:11,884 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 93 [2020-10-29 14:50:11,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:50:11,890 INFO L225 Difference]: With dead ends: 432 [2020-10-29 14:50:11,890 INFO L226 Difference]: Without dead ends: 380 [2020-10-29 14:50:11,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=223, Invalid=1499, Unknown=0, NotChecked=0, Total=1722 [2020-10-29 14:50:11,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-29 14:50:11,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 370. [2020-10-29 14:50:11,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-10-29 14:50:11,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 826 transitions. [2020-10-29 14:50:11,956 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 826 transitions. Word has length 93 [2020-10-29 14:50:11,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:50:11,957 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 826 transitions. [2020-10-29 14:50:11,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 14:50:11,957 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 826 transitions. [2020-10-29 14:50:11,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-29 14:50:11,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:50:11,964 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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] [2020-10-29 14:50:11,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 14:50:11,964 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:50:11,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:50:11,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1235733788, now seen corresponding path program 2 times [2020-10-29 14:50:11,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:50:11,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [319400681] [2020-10-29 14:50:11,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:50:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:12,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:12,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:12,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:12,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:15,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:15,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-29 14:50:15,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 14:50:15,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3824 [2020-10-29 14:50:15,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:15,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:15,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 14:50:15,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-29 14:50:15,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-29 14:50:15,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:16,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:50:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:16,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:16,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:16,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:16,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:16,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:16,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:16,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:16,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:16,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:16,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:16,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:16,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:50:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:16,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:16,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:16,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 14:50:16,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:16,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 14:50:16,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:16,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:16,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:16,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:16,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:16,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:16,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:50:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:16,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:16,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:16,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:16,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:16,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:50:16,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:16,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:16,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:16,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:16,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:16,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:16,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:50:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:16,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:16,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:16,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:50:16,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:16,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:50:16,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:16,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:16,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:16,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:16,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:16,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:16,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:50:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:16,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:16,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:16,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:16,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:16,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:50:16,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:16,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:16,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:16,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:16,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:16,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:16,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:50:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:16,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:16,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:16,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:16,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:16,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:50:16,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:16,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:16,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:16,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:16,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:16,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:16,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 14:50:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:16,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:16,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:16,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:16,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-29 14:50:16,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:50:16,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-29 14:50:16,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:16,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:16,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 14:50:16,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:16,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-29 14:50:16,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:16,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:50:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:16,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:16,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:16,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:16,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:16,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:16,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:16,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:16,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:16,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:16,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:16,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:16,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:50:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:16,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:16,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:16,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 14:50:16,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:16,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 14:50:16,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:16,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:16,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 14:50:16,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:16,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 14:50:16,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:16,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:50:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:16,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:16,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:16,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:16,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:16,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:50:16,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:16,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:16,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:16,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:16,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:16,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:16,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:50:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:16,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:16,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:16,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:16,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:16,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:50:16,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:16,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:16,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:16,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:16,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:16,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:16,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 14:50:16,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:16,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:16,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:16,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:16,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:16,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:16,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:16,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:16,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:16,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:16,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:16,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:16,803 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 15 proven. 16 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-10-29 14:50:16,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [319400681] [2020-10-29 14:50:16,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:50:16,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 14:50:16,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762790940] [2020-10-29 14:50:16,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 14:50:16,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:50:16,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 14:50:16,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=420, Unknown=0, NotChecked=0, Total=462 [2020-10-29 14:50:16,805 INFO L87 Difference]: Start difference. First operand 370 states and 826 transitions. Second operand 22 states. [2020-10-29 14:50:19,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:50:19,970 INFO L93 Difference]: Finished difference Result 441 states and 983 transitions. [2020-10-29 14:50:19,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-29 14:50:19,971 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 83 [2020-10-29 14:50:19,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:50:19,976 INFO L225 Difference]: With dead ends: 441 [2020-10-29 14:50:19,977 INFO L226 Difference]: Without dead ends: 438 [2020-10-29 14:50:19,979 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=242, Invalid=1650, Unknown=0, NotChecked=0, Total=1892 [2020-10-29 14:50:19,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2020-10-29 14:50:20,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 210. [2020-10-29 14:50:20,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-10-29 14:50:20,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 405 transitions. [2020-10-29 14:50:20,046 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 405 transitions. Word has length 83 [2020-10-29 14:50:20,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:50:20,046 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 405 transitions. [2020-10-29 14:50:20,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 14:50:20,047 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 405 transitions. [2020-10-29 14:50:20,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-29 14:50:20,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:50:20,050 INFO L422 BasicCegarLoop]: trace histogram [7, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 14:50:20,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 14:50:20,050 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:50:20,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:50:20,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1857507469, now seen corresponding path program 2 times [2020-10-29 14:50:20,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:50:20,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1589602443] [2020-10-29 14:50:20,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:50:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:20,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:20,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:22,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:22,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:24,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:25,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:25,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-29 14:50:25,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 14:50:25,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 14:50:25,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:25,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:25,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-29 14:50:25,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 14:50:25,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 14:50:25,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:25,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:50:25,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:25,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:25,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:25,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:25,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:25,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:25,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:25,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:25,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:25,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:25,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:25,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:25,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:50:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:25,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:25,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:25,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 14:50:25,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:25,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-10-29 14:50:25,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:25,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:25,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 14:50:25,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:25,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 14:50:25,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:25,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:50:25,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:25,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:25,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:25,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:25,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:25,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:50:25,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:25,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:25,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 14:50:25,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:50:25,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:50:25,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:26,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:50:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:26,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:26,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:26,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 14:50:26,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:26,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-29 14:50:26,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:26,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:26,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 14:50:26,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:50:26,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-29 14:50:26,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:26,930 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-10-29 14:50:27,747 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-29 14:50:27,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:50:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:27,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:27,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:27,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:50:27,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:27,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 14:50:27,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:27,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:27,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 14:50:27,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:50:27,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 14:50:27,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:28,836 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 26 [2020-10-29 14:50:28,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:50:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:28,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:28,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:28,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:28,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:28,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:50:28,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:28,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:28,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:28,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:50:28,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:50:28,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:28,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:50:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:28,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:28,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:28,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:28,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:28,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:50:28,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:28,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:28,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:28,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:50:28,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:50:28,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:28,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 14:50:28,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:28,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:28,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:28,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:28,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:28,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 14:50:28,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:28,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:28,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:28,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:50:28,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:50:28,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:29,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:50:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:29,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:29,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:29,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:29,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-29 14:50:29,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:50:29,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 14:50:29,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:29,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:29,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:29,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:29,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-29 14:50:29,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:29,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:50:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:29,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:29,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:29,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 14:50:29,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:29,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:50:29,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:29,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:29,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:29,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:29,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:29,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:29,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:50:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:29,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:29,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:29,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:29,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:29,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 14:50:29,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:29,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:29,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:29,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:29,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:29,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:29,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:50:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:29,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:29,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:29,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:29,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:29,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:50:29,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:29,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:29,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:29,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:29,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:29,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:29,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 14:50:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:29,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:29,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:29,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:29,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:29,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:50:29,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:29,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:29,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:29,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:29,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:29,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:29,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 14:50:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:29,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:29,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:29,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:29,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:29,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:50:29,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:29,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:29,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:29,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:29,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:29,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:29,164 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 5 proven. 48 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-29 14:50:29,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1589602443] [2020-10-29 14:50:29,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:50:29,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-29 14:50:29,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710331109] [2020-10-29 14:50:29,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-29 14:50:29,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:50:29,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-29 14:50:29,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2020-10-29 14:50:29,166 INFO L87 Difference]: Start difference. First operand 210 states and 405 transitions. Second operand 24 states. [2020-10-29 14:50:30,310 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-29 14:50:31,919 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-29 14:50:33,143 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-29 14:50:33,465 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-29 14:50:34,550 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-29 14:50:36,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:50:36,107 INFO L93 Difference]: Finished difference Result 280 states and 570 transitions. [2020-10-29 14:50:36,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-29 14:50:36,107 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 91 [2020-10-29 14:50:36,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:50:36,111 INFO L225 Difference]: With dead ends: 280 [2020-10-29 14:50:36,111 INFO L226 Difference]: Without dead ends: 253 [2020-10-29 14:50:36,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=247, Invalid=1645, Unknown=0, NotChecked=0, Total=1892 [2020-10-29 14:50:36,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-10-29 14:50:36,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 233. [2020-10-29 14:50:36,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-29 14:50:36,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 489 transitions. [2020-10-29 14:50:36,149 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 489 transitions. Word has length 91 [2020-10-29 14:50:36,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:50:36,150 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 489 transitions. [2020-10-29 14:50:36,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-29 14:50:36,150 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 489 transitions. [2020-10-29 14:50:36,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-29 14:50:36,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:50:36,155 INFO L422 BasicCegarLoop]: trace histogram [7, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 14:50:36,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 14:50:36,155 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:50:36,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:50:36,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1009766937, now seen corresponding path program 3 times [2020-10-29 14:50:36,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:50:36,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1855039272] [2020-10-29 14:50:36,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:50:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:36,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:36,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:36,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:37,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:41,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:41,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-29 14:50:41,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 14:50:41,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 14:50:41,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:41,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:41,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-29 14:50:41,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 14:50:41,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-29 14:50:41,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:41,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:50:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:41,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:41,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:41,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:41,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:41,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:41,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:41,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:41,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:41,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:41,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:41,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:41,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:50:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:41,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:41,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:41,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 14:50:41,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:41,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-10-29 14:50:41,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:41,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:41,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 14:50:41,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:41,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 14:50:41,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:41,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:50:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:42,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:42,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:42,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:50:42,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:42,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-29 14:50:42,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:42,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:42,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 14:50:42,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:50:42,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 14:50:42,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:42,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:50:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:42,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:42,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:42,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:42,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:42,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:50:42,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:42,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:42,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:42,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:50:42,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:50:42,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:42,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:50:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:42,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:42,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:42,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:42,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:42,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 14:50:42,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:42,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:42,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:42,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:50:42,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:50:42,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:42,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 14:50:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:42,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:42,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:42,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:50:42,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:42,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 14:50:42,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:42,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:42,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 14:50:42,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:50:42,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 14:50:42,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:42,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:50:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:42,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:42,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:42,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:42,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:42,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:50:42,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:42,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:42,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:42,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:50:42,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:50:42,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:42,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:50:42,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:42,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:42,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:42,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:42,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:42,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:50:42,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:42,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:42,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:42,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:50:42,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:50:42,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:42,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:50:42,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:42,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:42,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:42,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-29 14:50:42,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:42,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 14:50:42,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:42,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:42,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 14:50:42,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:42,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-29 14:50:42,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:42,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:50:42,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:42,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:42,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:42,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 14:50:42,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:42,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 14:50:42,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:42,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 14:50:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 14:50:42,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:43,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:50:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:43,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:43,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:43,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:43,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:43,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:50:43,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:43,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:43,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:43,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:43,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:43,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:43,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:50:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:43,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:43,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:43,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:43,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:43,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:43,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:43,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:43,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:43,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:43,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:43,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:43,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 14:50:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:43,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:43,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:43,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:43,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:43,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:43,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:43,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:43,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:43,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:43,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:43,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:43,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 14:50:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:43,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:43,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:43,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:43,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:43,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:50:43,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:43,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:43,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:50:43,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:43,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:50:43,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:43,399 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 7 proven. 77 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-10-29 14:50:43,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1855039272] [2020-10-29 14:50:43,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:50:43,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2020-10-29 14:50:43,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480500548] [2020-10-29 14:50:43,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-10-29 14:50:43,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:50:43,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-10-29 14:50:43,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=1178, Unknown=0, NotChecked=0, Total=1260 [2020-10-29 14:50:43,401 INFO L87 Difference]: Start difference. First operand 233 states and 489 transitions. Second operand 36 states. [2020-10-29 14:50:49,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:50:49,327 INFO L93 Difference]: Finished difference Result 328 states and 776 transitions. [2020-10-29 14:50:49,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-29 14:50:49,332 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 91 [2020-10-29 14:50:49,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:50:49,352 INFO L225 Difference]: With dead ends: 328 [2020-10-29 14:50:49,352 INFO L226 Difference]: Without dead ends: 325 [2020-10-29 14:50:49,355 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=448, Invalid=3842, Unknown=0, NotChecked=0, Total=4290 [2020-10-29 14:50:49,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-10-29 14:50:49,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 307. [2020-10-29 14:50:49,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-10-29 14:50:49,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 753 transitions. [2020-10-29 14:50:49,411 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 753 transitions. Word has length 91 [2020-10-29 14:50:49,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:50:49,411 INFO L481 AbstractCegarLoop]: Abstraction has 307 states and 753 transitions. [2020-10-29 14:50:49,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-10-29 14:50:49,412 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 753 transitions. [2020-10-29 14:50:49,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-29 14:50:49,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:50:49,419 INFO L422 BasicCegarLoop]: trace histogram [9, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-10-29 14:50:49,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 14:50:49,419 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:50:49,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:50:49,420 INFO L82 PathProgramCache]: Analyzing trace with hash 67206358, now seen corresponding path program 4 times [2020-10-29 14:50:49,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:50:49,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750660367] [2020-10-29 14:50:49,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:50:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:49,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:49,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:49,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:52,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:54,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:54,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-29 14:50:54,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 14:50:54,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-29 14:50:54,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:54,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:54,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-29 14:50:54,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 14:50:54,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-29 14:50:54,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:54,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:50:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:54,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:54,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:54,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:54,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:54,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:54,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:54,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:54,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:54,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:50:54,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:54,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:55,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:55,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-29 14:50:55,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:55,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 666 [2020-10-29 14:50:55,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:55,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:55,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-29 14:50:55,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:55,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-29 14:50:55,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:55,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:50:55,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:55,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:55,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:55,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:50:55,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:55,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-29 14:50:55,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:55,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:55,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 14:50:55,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:50:55,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 14:50:55,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:56,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:50:56,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:56,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:56,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:56,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:56,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:56,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 14:50:56,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:56,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:56,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:56,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:50:56,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:50:56,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:56,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:50:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:56,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:56,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:56,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:56,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:56,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 14:50:56,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:56,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:56,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:56,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:50:56,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:50:56,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:56,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 14:50:56,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:56,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:56,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:56,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 14:50:56,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:56,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-29 14:50:56,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:56,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:56,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 14:50:56,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:50:56,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-29 14:50:56,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:57,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:50:57,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:57,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:57,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:57,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:50:57,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:57,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 14:50:57,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:57,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:57,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 14:50:57,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:50:57,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 14:50:57,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:57,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:50:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:57,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:57,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:57,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:57,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:57,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:50:57,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:57,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:57,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:57,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:50:57,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:50:57,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:57,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:50:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:57,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:57,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:57,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:57,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:57,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:50:57,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:57,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:57,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:57,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:50:57,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:50:57,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:57,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 14:50:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:57,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:57,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:57,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:57,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:57,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 14:50:57,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:57,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:57,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:57,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:50:57,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:50:57,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:57,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 14:50:57,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:57,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:57,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:57,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-29 14:50:57,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:57,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-29 14:50:57,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:57,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:57,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 14:50:57,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:57,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-29 14:50:57,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:57,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:50:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:57,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:57,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:57,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 14:50:57,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:57,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 14:50:57,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:57,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:57,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 14:50:57,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:57,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 14:50:57,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:58,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:50:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:58,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:58,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:58,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:58,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:58,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:50:58,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:58,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:58,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:58,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:58,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:58,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:58,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:50:58,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:58,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:58,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:58,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:58,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:58,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:58,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:58,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:58,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:58,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:58,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:58,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:58,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 14:50:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:58,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:58,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:58,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:58,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:58,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:58,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:58,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:58,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:58,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:58,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:58,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:58,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 14:50:58,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:58,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:58,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:58,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:58,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:58,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:50:58,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:58,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:58,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:50:58,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:58,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:50:58,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:58,396 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 9 proven. 113 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-29 14:50:58,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [750660367] [2020-10-29 14:50:58,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:50:58,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-10-29 14:50:58,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52628338] [2020-10-29 14:50:58,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-10-29 14:50:58,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:50:58,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-10-29 14:50:58,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1379, Unknown=0, NotChecked=0, Total=1482 [2020-10-29 14:50:58,398 INFO L87 Difference]: Start difference. First operand 307 states and 753 transitions. Second operand 39 states. [2020-10-29 14:50:59,958 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-29 14:51:00,312 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-29 14:51:05,556 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-10-29 14:51:06,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:51:06,610 INFO L93 Difference]: Finished difference Result 374 states and 953 transitions. [2020-10-29 14:51:06,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-29 14:51:06,612 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 101 [2020-10-29 14:51:06,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:51:06,619 INFO L225 Difference]: With dead ends: 374 [2020-10-29 14:51:06,619 INFO L226 Difference]: Without dead ends: 371 [2020-10-29 14:51:06,623 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 790 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=531, Invalid=4725, Unknown=0, NotChecked=0, Total=5256 [2020-10-29 14:51:06,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-10-29 14:51:06,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 324. [2020-10-29 14:51:06,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-10-29 14:51:06,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 834 transitions. [2020-10-29 14:51:06,692 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 834 transitions. Word has length 101 [2020-10-29 14:51:06,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:51:06,692 INFO L481 AbstractCegarLoop]: Abstraction has 324 states and 834 transitions. [2020-10-29 14:51:06,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-10-29 14:51:06,693 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 834 transitions. [2020-10-29 14:51:06,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-29 14:51:06,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:51:06,702 INFO L422 BasicCegarLoop]: trace histogram [13, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 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] [2020-10-29 14:51:06,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 14:51:06,702 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:51:06,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:51:06,703 INFO L82 PathProgramCache]: Analyzing trace with hash -648758448, now seen corresponding path program 5 times [2020-10-29 14:51:06,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:51:06,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81481166] [2020-10-29 14:51:06,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:51:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:06,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:07,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:11,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:11,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-29 14:51:11,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:51:11,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-10-29 14:51:11,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:11,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:11,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 14:51:11,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-29 14:51:11,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 14:51:11,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:11,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:51:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:11,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:11,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:11,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:11,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:11,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:51:11,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:11,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:11,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:11,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:11,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:11,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:11,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:51:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:12,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:12,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 14:51:12,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:12,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 298 [2020-10-29 14:51:12,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:12,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:12,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 14:51:12,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:12,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-29 14:51:12,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:12,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:51:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:12,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:12,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 14:51:12,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:12,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 14:51:12,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:12,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:12,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:12,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:12,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:12,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:12,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:51:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:12,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:12,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:12,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:12,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 14:51:12,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:12,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:12,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:12,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:12,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:12,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:12,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:51:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:12,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:12,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:51:12,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:12,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:51:12,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:12,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:12,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:12,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:12,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:12,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:12,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:51:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:12,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:12,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:12,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:12,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:12,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:12,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:12,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:12,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:12,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:12,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:12,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:51:12,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:12,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:12,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:12,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:12,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:12,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:12,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:12,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:12,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 14:51:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:12,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:12,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 14:51:12,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:12,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 14:51:12,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:12,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:12,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:51:12,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:12,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 14:51:12,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:12,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:51:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:12,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:12,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 14:51:12,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:12,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 14:51:12,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:12,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:12,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:12,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:12,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-29 14:51:12,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:12,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:51:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:12,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:12,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:51:12,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:12,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:51:12,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:12,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:12,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:12,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:12,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:12,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:12,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:51:12,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:12,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:12,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:12,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:12,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:12,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:12,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:12,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:12,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:12,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:12,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:12,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:51:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:12,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:12,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:12,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:12,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:12,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:12,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:12,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:12,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:12,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:12,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:12,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 14:51:12,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:12,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:12,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:12,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:12,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:12,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:12,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:12,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:12,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:12,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:12,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:12,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 14:51:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:12,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:12,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:12,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:12,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:51:12,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:12,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:12,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:12,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:12,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:51:12,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:12,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 14:51:12,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:12,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:12,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-29 14:51:12,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:12,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 14:51:12,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:12,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:12,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 14:51:12,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 14:51:12,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-29 14:51:12,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:12,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:51:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:12,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:12,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 14:51:12,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:12,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:51:12,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:12,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:12,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:12,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:12,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 14:51:12,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:12,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:51:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:12,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:12,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:12,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:12,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 14:51:12,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:12,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:12,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:12,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:12,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:12,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:12,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:51:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:12,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:12,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:12,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:12,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 14:51:12,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:12,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:12,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:12,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:12,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:12,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:12,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 14:51:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:12,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:12,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:12,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:12,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:51:12,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:12,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:12,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:51:12,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:12,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:51:12,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:12,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 14:51:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:12,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:12,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:12,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:12,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:12,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:12,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:12,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:12,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 14:51:12,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:12,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:12,778 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 86 proven. 12 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2020-10-29 14:51:12,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81481166] [2020-10-29 14:51:12,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:51:12,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 14:51:12,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612463037] [2020-10-29 14:51:12,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 14:51:12,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:51:12,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 14:51:12,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2020-10-29 14:51:12,780 INFO L87 Difference]: Start difference. First operand 324 states and 834 transitions. Second operand 16 states. [2020-10-29 14:51:14,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:51:14,035 INFO L93 Difference]: Finished difference Result 362 states and 875 transitions. [2020-10-29 14:51:14,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 14:51:14,040 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 121 [2020-10-29 14:51:14,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:51:14,045 INFO L225 Difference]: With dead ends: 362 [2020-10-29 14:51:14,045 INFO L226 Difference]: Without dead ends: 324 [2020-10-29 14:51:14,047 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=594, Unknown=0, NotChecked=0, Total=702 [2020-10-29 14:51:14,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-10-29 14:51:14,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2020-10-29 14:51:14,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-10-29 14:51:14,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 804 transitions. [2020-10-29 14:51:14,115 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 804 transitions. Word has length 121 [2020-10-29 14:51:14,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:51:14,116 INFO L481 AbstractCegarLoop]: Abstraction has 324 states and 804 transitions. [2020-10-29 14:51:14,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 14:51:14,116 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 804 transitions. [2020-10-29 14:51:14,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-29 14:51:14,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:51:14,125 INFO L422 BasicCegarLoop]: trace histogram [9, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-10-29 14:51:14,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-29 14:51:14,125 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:51:14,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:51:14,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1226038660, now seen corresponding path program 6 times [2020-10-29 14:51:14,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:51:14,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1395468747] [2020-10-29 14:51:14,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:51:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:14,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:14,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:14,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:17,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:17,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:19,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:19,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-29 14:51:19,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 14:51:19,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 14:51:19,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:19,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:19,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 14:51:19,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 14:51:19,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 14:51:19,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:19,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:51:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:19,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:19,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:19,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:19,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:19,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:51:19,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:19,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:19,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:19,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:19,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:19,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:19,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:51:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:19,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:19,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:19,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-29 14:51:19,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:19,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 425 [2020-10-29 14:51:19,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:19,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:19,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 14:51:19,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:19,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-29 14:51:19,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:19,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:51:19,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:19,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:20,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:20,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 14:51:20,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:20,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-29 14:51:20,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:20,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:20,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 14:51:20,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:51:20,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-29 14:51:20,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:20,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:51:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:20,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:20,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:20,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:20,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:20,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:51:20,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:20,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:20,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:20,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:20,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:51:20,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:20,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:51:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:20,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:20,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:20,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 14:51:20,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:20,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 14:51:20,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:20,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:20,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:51:20,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:20,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-29 14:51:20,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:20,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:51:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:20,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:20,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:20,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:20,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:20,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:51:20,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:20,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:20,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:20,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:20,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:51:20,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:20,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:51:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:20,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:20,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:20,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:51:20,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:20,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 14:51:20,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:20,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:20,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:20,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:20,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 14:51:20,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:20,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:51:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:20,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:20,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:20,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:20,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:20,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:20,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:20,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:20,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:20,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:20,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:20,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:20,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:51:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:20,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:20,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:20,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:20,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:20,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:20,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:20,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:20,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:20,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:20,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:20,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:20,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 14:51:20,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:20,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:20,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:20,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:20,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:20,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:51:20,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:20,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:20,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:51:20,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:51:20,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:51:20,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:20,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 14:51:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:20,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:20,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:20,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-29 14:51:20,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:20,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 14:51:20,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:20,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:20,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 14:51:20,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 14:51:20,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-29 14:51:20,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:20,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:51:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:20,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:20,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:20,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 14:51:20,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:20,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 14:51:20,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:20,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:20,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 14:51:20,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:20,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 14:51:20,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:20,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:51:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:20,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:20,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:20,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:20,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:20,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:51:20,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:20,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:20,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:20,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:20,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:51:20,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:20,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:51:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:20,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:20,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:20,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:20,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:20,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:51:20,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:20,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:20,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:51:20,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:20,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:51:20,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:20,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 14:51:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:20,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:20,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:20,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:20,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:20,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:51:20,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:20,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:20,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:20,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:20,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:51:20,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:51:20,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 14:51:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:20,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:20,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:20,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:20,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:20,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 14:51:20,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:20,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:20,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:20,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 14:51:20,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:20,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:20,950 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 56 proven. 54 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-29 14:51:20,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1395468747] [2020-10-29 14:51:20,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:51:20,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-29 14:51:20,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737093564] [2020-10-29 14:51:20,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-29 14:51:20,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:51:20,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-29 14:51:20,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=549, Unknown=0, NotChecked=0, Total=600 [2020-10-29 14:51:20,953 INFO L87 Difference]: Start difference. First operand 324 states and 804 transitions. Second operand 25 states. [2020-10-29 14:51:24,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:51:24,546 INFO L93 Difference]: Finished difference Result 499 states and 1607 transitions. [2020-10-29 14:51:24,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-29 14:51:24,554 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 101 [2020-10-29 14:51:24,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:51:24,564 INFO L225 Difference]: With dead ends: 499 [2020-10-29 14:51:24,564 INFO L226 Difference]: Without dead ends: 461 [2020-10-29 14:51:24,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=272, Invalid=1984, Unknown=0, NotChecked=0, Total=2256 [2020-10-29 14:51:24,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2020-10-29 14:51:24,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 457. [2020-10-29 14:51:24,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-10-29 14:51:24,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 1512 transitions. [2020-10-29 14:51:24,686 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 1512 transitions. Word has length 101 [2020-10-29 14:51:24,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:51:24,686 INFO L481 AbstractCegarLoop]: Abstraction has 457 states and 1512 transitions. [2020-10-29 14:51:24,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-29 14:51:24,687 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 1512 transitions. [2020-10-29 14:51:24,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-29 14:51:24,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:51:24,702 INFO L422 BasicCegarLoop]: trace histogram [9, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-10-29 14:51:24,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-29 14:51:24,703 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:51:24,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:51:24,703 INFO L82 PathProgramCache]: Analyzing trace with hash -2102030660, now seen corresponding path program 7 times [2020-10-29 14:51:24,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:51:24,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1465289018] [2020-10-29 14:51:24,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:51:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:24,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:24,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:25,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:29,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:29,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-29 14:51:29,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 14:51:29,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-29 14:51:29,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:29,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:29,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 14:51:29,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 14:51:29,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 14:51:29,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:29,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:51:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:29,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:29,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:29,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:29,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:29,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:51:29,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:29,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:29,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:29,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:29,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:29,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:29,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:51:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:29,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:30,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:30,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-29 14:51:30,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:30,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 14:51:30,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:30,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:30,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:30,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:30,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:30,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:30,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:51:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:30,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:30,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:30,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 14:51:30,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:30,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 14:51:30,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:30,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:30,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:30,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:30,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:30,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:30,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:51:30,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:30,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:30,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:30,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 14:51:30,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:30,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 14:51:30,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:30,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:30,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:30,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:30,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:30,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:30,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:51:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:30,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:30,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:30,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:30,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:30,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:30,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:30,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:30,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:30,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:30,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:30,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:30,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:51:30,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:30,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:30,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:30,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:51:30,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:30,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:51:30,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:30,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:30,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:30,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:30,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:30,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:30,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:51:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:30,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:30,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:30,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:30,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:30,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:30,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:30,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:30,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:30,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:30,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:30,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:30,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:51:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:30,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:30,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:30,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:30,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:30,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:30,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:30,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:30,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:30,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:30,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:30,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:30,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 14:51:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:30,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:30,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:30,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:30,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:30,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:30,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:30,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:30,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:30,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:30,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:30,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:30,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 14:51:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:30,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:30,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:30,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:30,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:30,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:30,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:30,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:30,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:30,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:30,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:30,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:30,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 14:51:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:30,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:30,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:30,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-29 14:51:30,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:30,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 14:51:30,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:30,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:30,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 14:51:30,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:30,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-29 14:51:30,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:30,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:51:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:30,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:30,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:30,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 14:51:30,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:30,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 14:51:30,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:30,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:30,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 14:51:30,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:30,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 14:51:30,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:30,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:51:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:30,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:30,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:30,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:30,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:30,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:51:30,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:30,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:30,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:51:30,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:30,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:51:30,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:30,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:51:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:30,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:30,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:30,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:30,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:30,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:51:30,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:30,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:30,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:30,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:30,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:51:30,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:30,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 14:51:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:30,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:30,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:30,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:30,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:30,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:30,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:30,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:30,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:30,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:30,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:51:30,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:30,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 14:51:30,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:30,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:30,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:30,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:30,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:30,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:30,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:30,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:30,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:30,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:30,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:51:30,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:30,538 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2020-10-29 14:51:30,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1465289018] [2020-10-29 14:51:30,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:51:30,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 14:51:30,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195843701] [2020-10-29 14:51:30,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 14:51:30,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:51:30,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 14:51:30,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=419, Unknown=0, NotChecked=0, Total=462 [2020-10-29 14:51:30,540 INFO L87 Difference]: Start difference. First operand 457 states and 1512 transitions. Second operand 22 states. [2020-10-29 14:51:33,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:51:33,619 INFO L93 Difference]: Finished difference Result 514 states and 1722 transitions. [2020-10-29 14:51:33,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 14:51:33,619 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 101 [2020-10-29 14:51:33,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:51:33,627 INFO L225 Difference]: With dead ends: 514 [2020-10-29 14:51:33,627 INFO L226 Difference]: Without dead ends: 511 [2020-10-29 14:51:33,630 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=234, Invalid=1572, Unknown=0, NotChecked=0, Total=1806 [2020-10-29 14:51:33,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2020-10-29 14:51:33,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 348. [2020-10-29 14:51:33,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2020-10-29 14:51:33,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 935 transitions. [2020-10-29 14:51:33,740 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 935 transitions. Word has length 101 [2020-10-29 14:51:33,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:51:33,741 INFO L481 AbstractCegarLoop]: Abstraction has 348 states and 935 transitions. [2020-10-29 14:51:33,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 14:51:33,741 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 935 transitions. [2020-10-29 14:51:33,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-29 14:51:33,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:51:33,751 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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] [2020-10-29 14:51:33,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-29 14:51:33,751 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:51:33,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:51:33,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1339105608, now seen corresponding path program 1 times [2020-10-29 14:51:33,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:51:33,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1189511514] [2020-10-29 14:51:33,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:51:33,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:33,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:33,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:34,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:34,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:38,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:38,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 14:51:38,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 14:51:38,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 14:51:38,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:38,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:38,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-29 14:51:38,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 14:51:38,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-29 14:51:38,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:39,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:51:39,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:39,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:39,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:39,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:39,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:39,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:51:39,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:39,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:39,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:39,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:39,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:39,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:39,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:51:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:39,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:39,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:39,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 14:51:39,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:39,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-29 14:51:39,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:39,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:39,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 14:51:39,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:39,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-29 14:51:39,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:39,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:51:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:39,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:39,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:39,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:51:39,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:39,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 14:51:39,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:39,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:39,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 14:51:39,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:51:39,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 14:51:39,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:39,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:51:39,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:39,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:39,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:39,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:39,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:39,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:51:39,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:39,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:39,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:51:39,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:51:39,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:51:39,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:39,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:51:39,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:39,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:39,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:39,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:39,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:39,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:51:39,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:39,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:39,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:51:39,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:51:39,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:51:39,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:39,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 14:51:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:39,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:39,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:39,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:39,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:39,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:51:39,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:39,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:39,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:51:39,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:51:39,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:51:39,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:39,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 14:51:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:39,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:39,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:39,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:39,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-29 14:51:39,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:51:39,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-29 14:51:39,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:39,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:39,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 14:51:39,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:39,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-29 14:51:39,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:40,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:51:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:40,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:40,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:40,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:40,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 14:51:40,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:51:40,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-29 14:51:40,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:40,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:40,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 14:51:40,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:40,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 14:51:40,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:40,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:51:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:40,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:40,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:40,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:40,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:40,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:40,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:40,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:40,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:40,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:40,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:51:40,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:40,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:51:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:40,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:40,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:40,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:40,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:40,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:51:40,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:40,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:40,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:51:40,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:40,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:51:40,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:40,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 14:51:40,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:40,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:40,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:40,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:40,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:40,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:40,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:40,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:40,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:40,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:40,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:51:40,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:40,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 14:51:40,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:40,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:40,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:40,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:40,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:40,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:51:40,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:40,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:40,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:51:40,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:40,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:51:40,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:40,535 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 11 proven. 41 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-29 14:51:40,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1189511514] [2020-10-29 14:51:40,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:51:40,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-29 14:51:40,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560428182] [2020-10-29 14:51:40,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-29 14:51:40,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:51:40,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-29 14:51:40,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=986, Unknown=0, NotChecked=0, Total=1056 [2020-10-29 14:51:40,538 INFO L87 Difference]: Start difference. First operand 348 states and 935 transitions. Second operand 33 states. [2020-10-29 14:51:46,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:51:46,229 INFO L93 Difference]: Finished difference Result 445 states and 1327 transitions. [2020-10-29 14:51:46,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-29 14:51:46,233 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 82 [2020-10-29 14:51:46,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:51:46,240 INFO L225 Difference]: With dead ends: 445 [2020-10-29 14:51:46,240 INFO L226 Difference]: Without dead ends: 442 [2020-10-29 14:51:46,243 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=418, Invalid=3742, Unknown=0, NotChecked=0, Total=4160 [2020-10-29 14:51:46,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-10-29 14:51:46,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 420. [2020-10-29 14:51:46,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2020-10-29 14:51:46,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 1300 transitions. [2020-10-29 14:51:46,348 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 1300 transitions. Word has length 82 [2020-10-29 14:51:46,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:51:46,349 INFO L481 AbstractCegarLoop]: Abstraction has 420 states and 1300 transitions. [2020-10-29 14:51:46,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-29 14:51:46,349 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 1300 transitions. [2020-10-29 14:51:46,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-29 14:51:46,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:51:46,364 INFO L422 BasicCegarLoop]: trace histogram [7, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 14:51:46,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-29 14:51:46,365 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:51:46,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:51:46,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1647721931, now seen corresponding path program 2 times [2020-10-29 14:51:46,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:51:46,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [606864304] [2020-10-29 14:51:46,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:51:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:46,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:46,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:48,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:50,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:51,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:51,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 14:51:51,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 14:51:51,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-29 14:51:51,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:51,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:51,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 14:51:51,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-29 14:51:51,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-29 14:51:51,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:51,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:51:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:51,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:51,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:51,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:51,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:51,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:51:51,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:51,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:51,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:51,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:51,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:51,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:51,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:51:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:51,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:51,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:51,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 14:51:51,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:51,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 14:51:51,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:51,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:51,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:51,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:51,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:51,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:51,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:51:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:51,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:51,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:51,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 14:51:51,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:51,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 14:51:51,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:51,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:51,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:51,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:51,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:51,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:51,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:51:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:51,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:51,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:51,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:51:51,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:51,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 14:51:51,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:51,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:51,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:51,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:51,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:51,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:51,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:51:51,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:51,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:51,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:51,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:51,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:51,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:51,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:51,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:51,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:51,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:51,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:51,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:51,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:51:51,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:51,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:51,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:51,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:51,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:51,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:51,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:51,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:51,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:51,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:51,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:51,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:51,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 14:51:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:51,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:51,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:51,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:51,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:51,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:51,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:51,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:51,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:51,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:51,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:51,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:51,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 14:51:51,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:51,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:51,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:51,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:51,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:51,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:51,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:51,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:51,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:51,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:51,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:51,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:51,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:51:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:51,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:51,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:51,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:51,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-29 14:51:51,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:51:51,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-29 14:51:51,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:51,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:51,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 14:51:51,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:51,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-29 14:51:51,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:51,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:51:51,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:51,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:51,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:52,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:52,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 14:51:52,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:51:52,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 14:51:52,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:52,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:52,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 14:51:52,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:52,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 14:51:52,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:52,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:51:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:52,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:52,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:52,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:52,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:52,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:52,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:52,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:52,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:52,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:52,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:51:52,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:52,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:51:52,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:52,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:52,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:52,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:52,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:52,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:51:52,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:52,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:52,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:51:52,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:52,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:51:52,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:52,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 14:51:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:52,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:52,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:52,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:52,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:52,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:51:52,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:52,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:52,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:52,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:52,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:51:52,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:52,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-29 14:51:52,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:52,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:52,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:52,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:52,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:52,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:52,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:52,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:52,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:52,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:52,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:51:52,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:52,279 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 10 proven. 24 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-10-29 14:51:52,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [606864304] [2020-10-29 14:51:52,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:51:52,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 14:51:52,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58139606] [2020-10-29 14:51:52,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 14:51:52,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:51:52,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 14:51:52,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=419, Unknown=0, NotChecked=0, Total=462 [2020-10-29 14:51:52,281 INFO L87 Difference]: Start difference. First operand 420 states and 1300 transitions. Second operand 22 states. [2020-10-29 14:51:55,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:51:55,878 INFO L93 Difference]: Finished difference Result 690 states and 2625 transitions. [2020-10-29 14:51:55,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-29 14:51:55,883 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 92 [2020-10-29 14:51:55,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:51:55,896 INFO L225 Difference]: With dead ends: 690 [2020-10-29 14:51:55,896 INFO L226 Difference]: Without dead ends: 687 [2020-10-29 14:51:55,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=263, Invalid=1807, Unknown=0, NotChecked=0, Total=2070 [2020-10-29 14:51:55,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2020-10-29 14:51:56,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 532. [2020-10-29 14:51:56,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2020-10-29 14:51:56,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 1670 transitions. [2020-10-29 14:51:56,086 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 1670 transitions. Word has length 92 [2020-10-29 14:51:56,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:51:56,086 INFO L481 AbstractCegarLoop]: Abstraction has 532 states and 1670 transitions. [2020-10-29 14:51:56,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 14:51:56,086 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 1670 transitions. [2020-10-29 14:51:56,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-29 14:51:56,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:51:56,100 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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] [2020-10-29 14:51:56,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-29 14:51:56,100 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:51:56,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:51:56,101 INFO L82 PathProgramCache]: Analyzing trace with hash 945757847, now seen corresponding path program 1 times [2020-10-29 14:51:56,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:51:56,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978063796] [2020-10-29 14:51:56,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:51:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:56,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:56,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:56,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 14:51:56,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:56,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 624 [2020-10-29 14:51:56,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:56,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:56,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 14:51:56,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-29 14:51:56,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-29 14:51:56,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:56,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:51:56,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:56,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:56,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:56,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:56,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:56,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:51:56,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:56,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:56,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:56,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:56,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:56,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:56,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 14:51:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:56,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:56,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:56,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 14:51:56,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:56,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 14:51:56,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:56,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:56,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:56,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:56,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:56,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:56,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:51:56,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:56,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:56,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:56,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 14:51:56,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:56,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:51:56,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:56,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:56,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:56,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:56,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:56,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:57,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:51:57,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:57,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:57,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:57,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:57,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:57,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 14:51:57,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:57,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:57,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:57,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:57,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:57,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:57,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:51:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:57,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:57,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:57,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:57,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:57,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:57,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:57,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:57,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:57,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:57,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:57,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:57,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 14:51:57,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:57,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:57,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:57,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:57,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:57,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:57,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:57,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:57,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:57,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:57,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:57,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:57,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 14:51:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:57,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:57,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:57,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-29 14:51:57,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:57,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-29 14:51:57,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:57,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:57,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 14:51:57,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:57,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-29 14:51:57,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:57,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:51:57,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:57,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:57,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:57,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 14:51:57,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:57,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 14:51:57,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:57,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:57,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 14:51:57,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:57,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 14:51:57,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:57,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:51:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:57,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:57,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:57,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:57,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:57,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:57,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:57,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:57,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:57,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:57,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:51:57,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:57,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:51:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:57,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:57,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:57,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:57,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:57,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:51:57,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:57,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:57,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:57,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:57,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:51:57,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:57,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 14:51:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:57,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:57,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:57,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:57,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:57,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:51:57,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:57,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:57,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:57,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:57,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:51:57,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:57,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 14:51:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:57,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:57,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:57,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:57,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:57,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:51:57,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:57,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:57,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:57,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:57,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:51:57,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:57,420 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 18 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-10-29 14:51:57,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [978063796] [2020-10-29 14:51:57,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:51:57,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-29 14:51:57,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927438394] [2020-10-29 14:51:57,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-29 14:51:57,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:51:57,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-29 14:51:57,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-10-29 14:51:57,422 INFO L87 Difference]: Start difference. First operand 532 states and 1670 transitions. Second operand 21 states.