/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-circular-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 23:20:23,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 23:20:23,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 23:20:23,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 23:20:23,960 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 23:20:23,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 23:20:23,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 23:20:23,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 23:20:23,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 23:20:23,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 23:20:23,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 23:20:23,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 23:20:23,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 23:20:23,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 23:20:23,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 23:20:23,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 23:20:23,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 23:20:23,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 23:20:23,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 23:20:23,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 23:20:24,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 23:20:24,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 23:20:24,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 23:20:24,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 23:20:24,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 23:20:24,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 23:20:24,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 23:20:24,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 23:20:24,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 23:20:24,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 23:20:24,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 23:20:24,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 23:20:24,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 23:20:24,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 23:20:24,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 23:20:24,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 23:20:24,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 23:20:24,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 23:20:24,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 23:20:24,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 23:20:24,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 23:20:24,037 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 [2020-10-14 23:20:24,078 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 23:20:24,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 23:20:24,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 23:20:24,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 23:20:24,081 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 23:20:24,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 23:20:24,082 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 23:20:24,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 23:20:24,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 23:20:24,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 23:20:24,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 23:20:24,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 23:20:24,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 23:20:24,084 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 23:20:24,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 23:20:24,085 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 23:20:24,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 23:20:24,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 23:20:24,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 23:20:24,086 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 23:20:24,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 23:20:24,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 23:20:24,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 23:20:24,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 23:20:24,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 23:20:24,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 23:20:24,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 23:20:24,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 23:20:24,087 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 23:20:24,088 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 23:20:24,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 23:20:24,384 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 23:20:24,388 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 23:20:24,390 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 23:20:24,390 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 23:20:24,391 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-circular-2.i [2020-10-14 23:20:24,456 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f30b767c5/d55db73a6d1e4e5689f327a638400d60/FLAG3570807ca [2020-10-14 23:20:25,030 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 23:20:25,031 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-circular-2.i [2020-10-14 23:20:25,043 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f30b767c5/d55db73a6d1e4e5689f327a638400d60/FLAG3570807ca [2020-10-14 23:20:25,316 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f30b767c5/d55db73a6d1e4e5689f327a638400d60 [2020-10-14 23:20:25,324 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 23:20:25,325 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 23:20:25,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 23:20:25,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 23:20:25,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 23:20:25,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:20:25" (1/1) ... [2020-10-14 23:20:25,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2839cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:25, skipping insertion in model container [2020-10-14 23:20:25,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:20:25" (1/1) ... [2020-10-14 23:20:25,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 23:20:25,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 23:20:25,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:20:25,853 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 23:20:25,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:20:25,972 INFO L208 MainTranslator]: Completed translation [2020-10-14 23:20:25,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:25 WrapperNode [2020-10-14 23:20:25,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 23:20:25,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 23:20:25,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 23:20:25,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 23:20:25,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:25" (1/1) ... [2020-10-14 23:20:25,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:25" (1/1) ... [2020-10-14 23:20:26,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:25" (1/1) ... [2020-10-14 23:20:26,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:25" (1/1) ... [2020-10-14 23:20:26,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:25" (1/1) ... [2020-10-14 23:20:26,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:25" (1/1) ... [2020-10-14 23:20:26,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:25" (1/1) ... [2020-10-14 23:20:26,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 23:20:26,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 23:20:26,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 23:20:26,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 23:20:26,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:25" (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 [2020-10-14 23:20:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 23:20:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 23:20:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 23:20:26,109 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-14 23:20:26,109 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-14 23:20:26,109 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-14 23:20:26,109 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-14 23:20:26,109 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-14 23:20:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-14 23:20:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-14 23:20:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-14 23:20:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-14 23:20:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-14 23:20:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-14 23:20:26,111 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-14 23:20:26,111 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-14 23:20:26,111 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-14 23:20:26,111 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-14 23:20:26,111 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-14 23:20:26,112 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-14 23:20:26,112 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-14 23:20:26,112 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-14 23:20:26,112 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-14 23:20:26,113 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-14 23:20:26,113 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-14 23:20:26,113 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-14 23:20:26,113 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-14 23:20:26,113 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-14 23:20:26,114 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-14 23:20:26,114 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-14 23:20:26,114 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-14 23:20:26,114 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-14 23:20:26,114 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-14 23:20:26,114 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-14 23:20:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-14 23:20:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-14 23:20:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-14 23:20:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-14 23:20:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-14 23:20:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-14 23:20:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-14 23:20:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-14 23:20:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-14 23:20:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-14 23:20:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-14 23:20:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-14 23:20:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-14 23:20:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-14 23:20:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-14 23:20:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-14 23:20:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-14 23:20:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-14 23:20:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-14 23:20:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 23:20:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 23:20:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-14 23:20:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 23:20:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-14 23:20:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-14 23:20:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-14 23:20:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-14 23:20:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-14 23:20:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 23:20:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-14 23:20:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-14 23:20:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-14 23:20:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 23:20:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-14 23:20:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-14 23:20:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-14 23:20:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-14 23:20:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-14 23:20:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-14 23:20:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-14 23:20:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-14 23:20:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-14 23:20:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-14 23:20:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-14 23:20:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-14 23:20:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-14 23:20:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-14 23:20:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-14 23:20:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-14 23:20:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-14 23:20:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-14 23:20:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-14 23:20:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-14 23:20:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-14 23:20:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-14 23:20:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-14 23:20:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-14 23:20:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-14 23:20:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-14 23:20:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-14 23:20:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-14 23:20:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-14 23:20:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-14 23:20:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-14 23:20:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-14 23:20:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-14 23:20:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-14 23:20:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-14 23:20:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-14 23:20:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-14 23:20:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-14 23:20:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-14 23:20:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 23:20:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 23:20:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 23:20:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 23:20:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 23:20:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 23:20:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 23:20:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 23:20:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 23:20:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 23:20:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 23:20:26,611 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 23:20:26,611 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-14 23:20:26,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:20:26 BoogieIcfgContainer [2020-10-14 23:20:26,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 23:20:26,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 23:20:26,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 23:20:26,620 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 23:20:26,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:20:25" (1/3) ... [2020-10-14 23:20:26,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f4fc2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:20:26, skipping insertion in model container [2020-10-14 23:20:26,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:25" (2/3) ... [2020-10-14 23:20:26,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f4fc2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:20:26, skipping insertion in model container [2020-10-14 23:20:26,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:20:26" (3/3) ... [2020-10-14 23:20:26,624 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-circular-2.i [2020-10-14 23:20:26,634 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 23:20:26,641 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-14 23:20:26,655 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-14 23:20:26,678 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 23:20:26,678 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 23:20:26,679 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 23:20:26,679 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 23:20:26,679 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 23:20:26,679 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 23:20:26,679 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 23:20:26,679 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 23:20:26,698 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-14 23:20:26,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-14 23:20:26,704 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:26,705 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:26,705 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:26,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:26,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1483997276, now seen corresponding path program 1 times [2020-10-14 23:20:26,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:26,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1452855562] [2020-10-14 23:20:26,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:26,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:26,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:27,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:27,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 23:20:27,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:20:27,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-10-14 23:20:27,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:27,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:27,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:20:27,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:27,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 23:20:27,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 23:20:27,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:27,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:27,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:27,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:27,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:27,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:27,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:20:27,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:27,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:27,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:27,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:27,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:27,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:27,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:27,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1452855562] [2020-10-14 23:20:27,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:20:27,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 23:20:27,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633505495] [2020-10-14 23:20:27,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 23:20:27,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:27,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 23:20:27,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 23:20:27,408 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 5 states. [2020-10-14 23:20:27,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:27,634 INFO L93 Difference]: Finished difference Result 83 states and 130 transitions. [2020-10-14 23:20:27,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 23:20:27,636 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-14 23:20:27,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:27,646 INFO L225 Difference]: With dead ends: 83 [2020-10-14 23:20:27,646 INFO L226 Difference]: Without dead ends: 42 [2020-10-14 23:20:27,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 23:20:27,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-14 23:20:27,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 32. [2020-10-14 23:20:27,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-14 23:20:27,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2020-10-14 23:20:27,698 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 10 [2020-10-14 23:20:27,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:27,699 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2020-10-14 23:20:27,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 23:20:27,699 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2020-10-14 23:20:27,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 23:20:27,700 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:27,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:27,701 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 23:20:27,701 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:27,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:27,701 INFO L82 PathProgramCache]: Analyzing trace with hash -97127833, now seen corresponding path program 1 times [2020-10-14 23:20:27,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:27,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2093254489] [2020-10-14 23:20:27,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:27,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:27,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:27,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:27,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 23:20:27,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:20:27,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-14 23:20:27,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:27,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:27,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:20:27,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:27,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:20:27,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:28,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:28,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:28,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:28,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:28,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:28,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:20:28,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:28,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:28,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:28,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:28,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:28,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:28,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:28,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2093254489] [2020-10-14 23:20:28,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:20:28,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 23:20:28,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32086067] [2020-10-14 23:20:28,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 23:20:28,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:28,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 23:20:28,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 23:20:28,029 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 6 states. [2020-10-14 23:20:28,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:28,221 INFO L93 Difference]: Finished difference Result 54 states and 65 transitions. [2020-10-14 23:20:28,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 23:20:28,221 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-14 23:20:28,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:28,223 INFO L225 Difference]: With dead ends: 54 [2020-10-14 23:20:28,223 INFO L226 Difference]: Without dead ends: 52 [2020-10-14 23:20:28,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 23:20:28,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-14 23:20:28,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 40. [2020-10-14 23:20:28,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-14 23:20:28,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2020-10-14 23:20:28,233 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 50 transitions. Word has length 14 [2020-10-14 23:20:28,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:28,234 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 50 transitions. [2020-10-14 23:20:28,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 23:20:28,234 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2020-10-14 23:20:28,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-14 23:20:28,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:28,235 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:28,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 23:20:28,236 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:28,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:28,237 INFO L82 PathProgramCache]: Analyzing trace with hash 2075944349, now seen corresponding path program 1 times [2020-10-14 23:20:28,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:28,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1191396070] [2020-10-14 23:20:28,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:28,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:28,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:28,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:28,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 23:20:28,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:20:28,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-14 23:20:28,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:28,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:28,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:20:28,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:28,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 23:20:28,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:28,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:28,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:28,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:28,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:28,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:28,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:28,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:20:28,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:28,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:28,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:28,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:28,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:28,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:28,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:28,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1191396070] [2020-10-14 23:20:28,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:20:28,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 23:20:28,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440096564] [2020-10-14 23:20:28,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 23:20:28,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:28,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 23:20:28,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 23:20:28,551 INFO L87 Difference]: Start difference. First operand 40 states and 50 transitions. Second operand 6 states. [2020-10-14 23:20:28,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:28,805 INFO L93 Difference]: Finished difference Result 61 states and 73 transitions. [2020-10-14 23:20:28,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 23:20:28,805 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-14 23:20:28,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:28,806 INFO L225 Difference]: With dead ends: 61 [2020-10-14 23:20:28,807 INFO L226 Difference]: Without dead ends: 52 [2020-10-14 23:20:28,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 23:20:28,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-14 23:20:28,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-10-14 23:20:28,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-14 23:20:28,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2020-10-14 23:20:28,817 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 17 [2020-10-14 23:20:28,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:28,817 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2020-10-14 23:20:28,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 23:20:28,817 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2020-10-14 23:20:28,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-14 23:20:28,818 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:28,818 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:28,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 23:20:28,819 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:28,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:28,819 INFO L82 PathProgramCache]: Analyzing trace with hash 2075946271, now seen corresponding path program 1 times [2020-10-14 23:20:28,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:28,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289110186] [2020-10-14 23:20:28,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:28,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:28,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:28,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 23:20:28,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:28,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 23:20:28,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:28,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:28,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:20:28,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:28,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 23:20:28,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:29,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:29,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:29,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:29,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:29,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:29,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:29,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:20:29,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:29,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:29,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:29,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:29,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:29,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:29,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:29,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289110186] [2020-10-14 23:20:29,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:20:29,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 23:20:29,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632689238] [2020-10-14 23:20:29,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 23:20:29,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:29,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 23:20:29,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 23:20:29,046 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand 6 states. [2020-10-14 23:20:29,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:29,241 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2020-10-14 23:20:29,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 23:20:29,242 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-14 23:20:29,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:29,243 INFO L225 Difference]: With dead ends: 53 [2020-10-14 23:20:29,243 INFO L226 Difference]: Without dead ends: 41 [2020-10-14 23:20:29,244 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 23:20:29,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-14 23:20:29,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-14 23:20:29,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-14 23:20:29,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2020-10-14 23:20:29,256 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 17 [2020-10-14 23:20:29,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:29,258 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2020-10-14 23:20:29,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 23:20:29,258 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2020-10-14 23:20:29,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-14 23:20:29,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:29,260 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:29,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 23:20:29,260 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:29,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:29,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1087811858, now seen corresponding path program 1 times [2020-10-14 23:20:29,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:29,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226296766] [2020-10-14 23:20:29,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:29,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:29,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:29,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:29,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 23:20:29,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:20:29,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-10-14 23:20:29,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:29,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:29,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:20:29,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:29,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 23:20:29,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:29,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:29,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:29,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:29,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:29,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:29,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:20:29,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:29,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:29,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:29,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:29,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:29,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:29,915 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:29,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [226296766] [2020-10-14 23:20:29,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:29,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 23:20:29,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563283484] [2020-10-14 23:20:29,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 23:20:29,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:29,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 23:20:29,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:20:29,919 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 7 states. [2020-10-14 23:20:30,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:30,314 INFO L93 Difference]: Finished difference Result 75 states and 90 transitions. [2020-10-14 23:20:30,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 23:20:30,316 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-14 23:20:30,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:30,324 INFO L225 Difference]: With dead ends: 75 [2020-10-14 23:20:30,324 INFO L226 Difference]: Without dead ends: 73 [2020-10-14 23:20:30,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:20:30,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-14 23:20:30,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 49. [2020-10-14 23:20:30,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-14 23:20:30,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 62 transitions. [2020-10-14 23:20:30,345 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 62 transitions. Word has length 20 [2020-10-14 23:20:30,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:30,346 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 62 transitions. [2020-10-14 23:20:30,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 23:20:30,346 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 62 transitions. [2020-10-14 23:20:30,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-14 23:20:30,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:30,349 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] [2020-10-14 23:20:30,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 23:20:30,349 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:30,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:30,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1068600021, now seen corresponding path program 1 times [2020-10-14 23:20:30,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:30,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57292367] [2020-10-14 23:20:30,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:30,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:30,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:30,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:30,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 23:20:30,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:20:30,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 362 [2020-10-14 23:20:30,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:30,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:30,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 23:20:30,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:30,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 23:20:30,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:30,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:30,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:30,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:30,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:30,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:30,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:20:30,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:30,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:30,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:30,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:30,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:30,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:30,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:30,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57292367] [2020-10-14 23:20:30,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:20:30,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 23:20:30,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044019264] [2020-10-14 23:20:30,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 23:20:30,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:30,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 23:20:30,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:20:30,869 INFO L87 Difference]: Start difference. First operand 49 states and 62 transitions. Second operand 7 states. [2020-10-14 23:20:31,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:31,149 INFO L93 Difference]: Finished difference Result 69 states and 84 transitions. [2020-10-14 23:20:31,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 23:20:31,150 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-14 23:20:31,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:31,151 INFO L225 Difference]: With dead ends: 69 [2020-10-14 23:20:31,151 INFO L226 Difference]: Without dead ends: 59 [2020-10-14 23:20:31,152 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:20:31,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-14 23:20:31,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 56. [2020-10-14 23:20:31,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-14 23:20:31,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2020-10-14 23:20:31,160 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 20 [2020-10-14 23:20:31,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:31,160 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2020-10-14 23:20:31,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 23:20:31,161 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2020-10-14 23:20:31,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-14 23:20:31,162 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:31,162 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:31,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 23:20:31,162 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:31,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:31,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1161462653, now seen corresponding path program 2 times [2020-10-14 23:20:31,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:31,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [497636919] [2020-10-14 23:20:31,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:31,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:31,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:31,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:31,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 23:20:31,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:20:31,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 646 [2020-10-14 23:20:31,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:31,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:31,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:20:31,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:31,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 23:20:31,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:31,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:31,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:31,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:31,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:31,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:31,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:20:31,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:31,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:31,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:31,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:31,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:31,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:31,889 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 23:20:31,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [497636919] [2020-10-14 23:20:31,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:20:31,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 23:20:31,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463134184] [2020-10-14 23:20:31,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 23:20:31,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:31,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 23:20:31,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 23:20:31,893 INFO L87 Difference]: Start difference. First operand 56 states and 69 transitions. Second operand 4 states. [2020-10-14 23:20:31,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:31,982 INFO L93 Difference]: Finished difference Result 144 states and 175 transitions. [2020-10-14 23:20:31,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 23:20:31,983 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-14 23:20:31,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:31,984 INFO L225 Difference]: With dead ends: 144 [2020-10-14 23:20:31,984 INFO L226 Difference]: Without dead ends: 98 [2020-10-14 23:20:31,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 23:20:31,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-14 23:20:31,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 74. [2020-10-14 23:20:31,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-14 23:20:32,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 90 transitions. [2020-10-14 23:20:32,002 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 90 transitions. Word has length 26 [2020-10-14 23:20:32,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:32,002 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 90 transitions. [2020-10-14 23:20:32,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 23:20:32,003 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 90 transitions. [2020-10-14 23:20:32,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-14 23:20:32,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:32,009 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:32,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 23:20:32,009 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:32,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:32,010 INFO L82 PathProgramCache]: Analyzing trace with hash 100041492, now seen corresponding path program 1 times [2020-10-14 23:20:32,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:32,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [625908382] [2020-10-14 23:20:32,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:32,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:32,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:32,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:32,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:32,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 23:20:32,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:20:32,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 610 [2020-10-14 23:20:32,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:32,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:32,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 23:20:32,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:32,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 23:20:32,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:32,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:32,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:32,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:32,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:32,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:32,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:20:32,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:32,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:32,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:32,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:32,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:32,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:32,741 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-14 23:20:32,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [625908382] [2020-10-14 23:20:32,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:32,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 23:20:32,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957511559] [2020-10-14 23:20:32,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 23:20:32,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:32,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 23:20:32,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:20:32,744 INFO L87 Difference]: Start difference. First operand 74 states and 90 transitions. Second operand 7 states. [2020-10-14 23:20:32,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:32,890 INFO L93 Difference]: Finished difference Result 84 states and 101 transitions. [2020-10-14 23:20:32,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 23:20:32,890 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-14 23:20:32,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:32,891 INFO L225 Difference]: With dead ends: 84 [2020-10-14 23:20:32,892 INFO L226 Difference]: Without dead ends: 82 [2020-10-14 23:20:32,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:20:32,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-14 23:20:32,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 55. [2020-10-14 23:20:32,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-14 23:20:32,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 65 transitions. [2020-10-14 23:20:32,900 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 65 transitions. Word has length 27 [2020-10-14 23:20:32,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:32,901 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 65 transitions. [2020-10-14 23:20:32,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 23:20:32,901 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2020-10-14 23:20:32,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-14 23:20:32,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:32,902 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:32,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 23:20:32,903 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:32,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:32,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1003325811, now seen corresponding path program 1 times [2020-10-14 23:20:32,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:32,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1960495998] [2020-10-14 23:20:32,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:32,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:32,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:33,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:33,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:33,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 23:20:33,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:20:33,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 538 [2020-10-14 23:20:33,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:33,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:33,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 23:20:33,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:33,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 23:20:33,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:33,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:33,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:33,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:33,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:33,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:33,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:20:33,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:33,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:33,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:33,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:33,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:33,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:33,724 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:33,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1960495998] [2020-10-14 23:20:33,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:33,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 23:20:33,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547124544] [2020-10-14 23:20:33,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 23:20:33,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:33,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 23:20:33,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:20:33,727 INFO L87 Difference]: Start difference. First operand 55 states and 65 transitions. Second operand 9 states. [2020-10-14 23:20:34,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:34,180 INFO L93 Difference]: Finished difference Result 86 states and 103 transitions. [2020-10-14 23:20:34,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 23:20:34,181 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-14 23:20:34,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:34,182 INFO L225 Difference]: With dead ends: 86 [2020-10-14 23:20:34,183 INFO L226 Difference]: Without dead ends: 84 [2020-10-14 23:20:34,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-14 23:20:34,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-14 23:20:34,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 76. [2020-10-14 23:20:34,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-14 23:20:34,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 93 transitions. [2020-10-14 23:20:34,194 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 93 transitions. Word has length 27 [2020-10-14 23:20:34,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:34,194 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 93 transitions. [2020-10-14 23:20:34,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 23:20:34,194 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 93 transitions. [2020-10-14 23:20:34,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-14 23:20:34,195 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:34,195 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 23:20:34,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 23:20:34,196 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:34,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:34,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1307682849, now seen corresponding path program 1 times [2020-10-14 23:20:34,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:34,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1476252715] [2020-10-14 23:20:34,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:34,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:34,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:34,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:34,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:34,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:34,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 23:20:34,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 23:20:34,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 705 [2020-10-14 23:20:34,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:34,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:34,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 23:20:34,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:34,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 23:20:34,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:35,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:35,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:35,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:35,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:35,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:35,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:20:35,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:35,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:35,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:35,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:35,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:35,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 23:20:35,245 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:35,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1476252715] [2020-10-14 23:20:35,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:35,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 23:20:35,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290481252] [2020-10-14 23:20:35,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 23:20:35,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:35,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 23:20:35,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-14 23:20:35,248 INFO L87 Difference]: Start difference. First operand 76 states and 93 transitions. Second operand 8 states. [2020-10-14 23:20:35,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:35,934 INFO L93 Difference]: Finished difference Result 97 states and 115 transitions. [2020-10-14 23:20:35,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 23:20:35,935 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2020-10-14 23:20:35,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:35,936 INFO L225 Difference]: With dead ends: 97 [2020-10-14 23:20:35,936 INFO L226 Difference]: Without dead ends: 95 [2020-10-14 23:20:35,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-14 23:20:35,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-10-14 23:20:35,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 86. [2020-10-14 23:20:35,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-14 23:20:35,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 103 transitions. [2020-10-14 23:20:35,947 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 103 transitions. Word has length 30 [2020-10-14 23:20:35,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:35,948 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 103 transitions. [2020-10-14 23:20:35,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 23:20:35,948 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 103 transitions. [2020-10-14 23:20:35,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-14 23:20:35,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:35,949 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:35,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 23:20:35,950 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:35,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:35,950 INFO L82 PathProgramCache]: Analyzing trace with hash 432046418, now seen corresponding path program 1 times [2020-10-14 23:20:35,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:35,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473047275] [2020-10-14 23:20:35,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:35,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:36,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:36,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 23:20:36,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:36,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 371 [2020-10-14 23:20:36,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:36,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:36,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 23:20:36,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:36,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 23:20:36,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:36,784 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2020-10-14 23:20:36,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:36,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:36,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:36,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:36,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:36,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:20:36,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:36,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:36,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:36,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:36,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:36,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:36,912 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:36,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1473047275] [2020-10-14 23:20:36,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:36,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 23:20:36,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408169504] [2020-10-14 23:20:36,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 23:20:36,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:36,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 23:20:36,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-14 23:20:36,915 INFO L87 Difference]: Start difference. First operand 86 states and 103 transitions. Second operand 11 states. [2020-10-14 23:20:37,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:37,439 INFO L93 Difference]: Finished difference Result 109 states and 128 transitions. [2020-10-14 23:20:37,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 23:20:37,440 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2020-10-14 23:20:37,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:37,443 INFO L225 Difference]: With dead ends: 109 [2020-10-14 23:20:37,443 INFO L226 Difference]: Without dead ends: 107 [2020-10-14 23:20:37,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-14 23:20:37,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-14 23:20:37,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 87. [2020-10-14 23:20:37,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-14 23:20:37,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 104 transitions. [2020-10-14 23:20:37,457 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 104 transitions. Word has length 30 [2020-10-14 23:20:37,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:37,457 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 104 transitions. [2020-10-14 23:20:37,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 23:20:37,458 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 104 transitions. [2020-10-14 23:20:37,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-14 23:20:37,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:37,460 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 23:20:37,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 23:20:37,461 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:37,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:37,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1077150380, now seen corresponding path program 1 times [2020-10-14 23:20:37,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:37,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [261387773] [2020-10-14 23:20:37,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:37,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:37,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:37,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:37,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:38,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:38,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 23:20:38,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 23:20:38,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 626 [2020-10-14 23:20:38,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:38,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:38,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 23:20:38,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:38,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 23:20:38,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:38,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:38,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:38,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:38,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:38,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:38,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:20:38,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:38,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:38,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:38,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:38,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:38,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:38,386 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:38,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [261387773] [2020-10-14 23:20:38,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:38,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 23:20:38,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505203590] [2020-10-14 23:20:38,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 23:20:38,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:38,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 23:20:38,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:20:38,388 INFO L87 Difference]: Start difference. First operand 87 states and 104 transitions. Second operand 9 states. [2020-10-14 23:20:38,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:38,658 INFO L93 Difference]: Finished difference Result 106 states and 125 transitions. [2020-10-14 23:20:38,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 23:20:38,658 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2020-10-14 23:20:38,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:38,659 INFO L225 Difference]: With dead ends: 106 [2020-10-14 23:20:38,659 INFO L226 Difference]: Without dead ends: 70 [2020-10-14 23:20:38,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-14 23:20:38,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-14 23:20:38,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-10-14 23:20:38,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-14 23:20:38,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 85 transitions. [2020-10-14 23:20:38,668 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 85 transitions. Word has length 31 [2020-10-14 23:20:38,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:38,668 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 85 transitions. [2020-10-14 23:20:38,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 23:20:38,668 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 85 transitions. [2020-10-14 23:20:38,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-14 23:20:38,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:38,669 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:38,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 23:20:38,669 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:38,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:38,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1176084370, now seen corresponding path program 1 times [2020-10-14 23:20:38,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:38,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506340777] [2020-10-14 23:20:38,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:38,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:39,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:39,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 23:20:39,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:39,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-10-14 23:20:39,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:39,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:39,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 23:20:39,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:39,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 23:20:39,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:39,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:39,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:39,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:39,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:39,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:39,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:20:39,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:39,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:39,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:39,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:39,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:39,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:39,339 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:39,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [506340777] [2020-10-14 23:20:39,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:39,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 23:20:39,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570203000] [2020-10-14 23:20:39,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 23:20:39,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:39,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 23:20:39,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-14 23:20:39,342 INFO L87 Difference]: Start difference. First operand 70 states and 85 transitions. Second operand 10 states. [2020-10-14 23:20:39,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:39,797 INFO L93 Difference]: Finished difference Result 95 states and 113 transitions. [2020-10-14 23:20:39,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 23:20:39,798 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2020-10-14 23:20:39,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:39,799 INFO L225 Difference]: With dead ends: 95 [2020-10-14 23:20:39,799 INFO L226 Difference]: Without dead ends: 93 [2020-10-14 23:20:39,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-14 23:20:39,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-14 23:20:39,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 70. [2020-10-14 23:20:39,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-14 23:20:39,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 85 transitions. [2020-10-14 23:20:39,810 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 85 transitions. Word has length 32 [2020-10-14 23:20:39,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:39,810 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 85 transitions. [2020-10-14 23:20:39,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 23:20:39,811 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 85 transitions. [2020-10-14 23:20:39,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-14 23:20:39,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:39,813 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:39,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 23:20:39,813 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:39,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:39,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1134811710, now seen corresponding path program 1 times [2020-10-14 23:20:39,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:39,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636427611] [2020-10-14 23:20:39,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:39,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:39,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:40,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:40,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 23:20:40,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:20:40,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 670 [2020-10-14 23:20:40,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:40,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:40,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 23:20:40,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:40,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 23:20:40,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:40,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:40,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:40,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:40,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:40,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:40,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:20:40,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:40,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:40,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:40,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:40,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:40,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:40,969 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:40,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [636427611] [2020-10-14 23:20:40,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:40,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 23:20:40,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858292667] [2020-10-14 23:20:40,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 23:20:40,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:40,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 23:20:40,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-14 23:20:40,972 INFO L87 Difference]: Start difference. First operand 70 states and 85 transitions. Second operand 12 states. [2020-10-14 23:20:41,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:41,612 INFO L93 Difference]: Finished difference Result 129 states and 158 transitions. [2020-10-14 23:20:41,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 23:20:41,613 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 33 [2020-10-14 23:20:41,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:41,615 INFO L225 Difference]: With dead ends: 129 [2020-10-14 23:20:41,615 INFO L226 Difference]: Without dead ends: 108 [2020-10-14 23:20:41,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-14 23:20:41,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-14 23:20:41,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 78. [2020-10-14 23:20:41,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-14 23:20:41,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 96 transitions. [2020-10-14 23:20:41,634 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 96 transitions. Word has length 33 [2020-10-14 23:20:41,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:41,634 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 96 transitions. [2020-10-14 23:20:41,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 23:20:41,634 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 96 transitions. [2020-10-14 23:20:41,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-14 23:20:41,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:41,635 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:41,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 23:20:41,635 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:41,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:41,636 INFO L82 PathProgramCache]: Analyzing trace with hash -965435656, now seen corresponding path program 2 times [2020-10-14 23:20:41,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:41,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569828241] [2020-10-14 23:20:41,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:41,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:41,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:42,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:42,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 23:20:42,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:20:42,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 762 [2020-10-14 23:20:42,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:42,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:42,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 23:20:42,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:42,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 23:20:42,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:42,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:42,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:42,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:42,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:42,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:42,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:20:42,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:42,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:42,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:42,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:42,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:42,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:42,807 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:42,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569828241] [2020-10-14 23:20:42,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:42,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 23:20:42,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102489320] [2020-10-14 23:20:42,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 23:20:42,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:42,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 23:20:42,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-14 23:20:42,809 INFO L87 Difference]: Start difference. First operand 78 states and 96 transitions. Second operand 11 states. [2020-10-14 23:20:43,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:43,430 INFO L93 Difference]: Finished difference Result 120 states and 147 transitions. [2020-10-14 23:20:43,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 23:20:43,431 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 33 [2020-10-14 23:20:43,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:43,432 INFO L225 Difference]: With dead ends: 120 [2020-10-14 23:20:43,432 INFO L226 Difference]: Without dead ends: 118 [2020-10-14 23:20:43,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-14 23:20:43,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-14 23:20:43,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 91. [2020-10-14 23:20:43,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-14 23:20:43,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 114 transitions. [2020-10-14 23:20:43,449 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 114 transitions. Word has length 33 [2020-10-14 23:20:43,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:43,450 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 114 transitions. [2020-10-14 23:20:43,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 23:20:43,450 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 114 transitions. [2020-10-14 23:20:43,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-14 23:20:43,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:43,451 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 23:20:43,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 23:20:43,452 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:43,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:43,452 INFO L82 PathProgramCache]: Analyzing trace with hash -165752378, now seen corresponding path program 1 times [2020-10-14 23:20:43,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:43,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924299968] [2020-10-14 23:20:43,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:43,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:43,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:43,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:43,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:44,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:44,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:44,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:45,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:46,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:46,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:47,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:47,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 23:20:47,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 23:20:47,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3896 [2020-10-14 23:20:47,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:47,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:47,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 23:20:47,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:47,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 23:20:47,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:47,415 ERROR L253 erpolLogProxyWrapper]: Interpolant 28 not inductive [2020-10-14 23:20:47,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 23:20:47,416 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:849) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:155) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:256) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:150) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-10-14 23:20:47,423 INFO L168 Benchmark]: Toolchain (without parser) took 22097.76 ms. Allocated memory was 147.3 MB in the beginning and 530.1 MB in the end (delta: 382.7 MB). Free memory was 102.1 MB in the beginning and 97.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 399.4 MB. Max. memory is 7.1 GB. [2020-10-14 23:20:47,424 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.4 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-14 23:20:47,428 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.73 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 102.1 MB in the beginning and 170.8 MB in the end (delta: -68.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-10-14 23:20:47,433 INFO L168 Benchmark]: Boogie Preprocessor took 65.12 ms. Allocated memory is still 204.5 MB. Free memory was 170.8 MB in the beginning and 167.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-10-14 23:20:47,434 INFO L168 Benchmark]: RCFGBuilder took 576.28 ms. Allocated memory is still 204.5 MB. Free memory was 167.9 MB in the beginning and 122.5 MB in the end (delta: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 7.1 GB. [2020-10-14 23:20:47,435 INFO L168 Benchmark]: TraceAbstraction took 20804.77 ms. Allocated memory was 204.5 MB in the beginning and 530.1 MB in the end (delta: 325.6 MB). Free memory was 122.5 MB in the beginning and 97.7 MB in the end (delta: 24.8 MB). Peak memory consumption was 362.6 MB. Max. memory is 7.1 GB. [2020-10-14 23:20:47,443 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.4 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 646.73 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 102.1 MB in the beginning and 170.8 MB in the end (delta: -68.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 65.12 ms. Allocated memory is still 204.5 MB. Free memory was 170.8 MB in the beginning and 167.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 576.28 ms. Allocated memory is still 204.5 MB. Free memory was 167.9 MB in the beginning and 122.5 MB in the end (delta: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20804.77 ms. Allocated memory was 204.5 MB in the beginning and 530.1 MB in the end (delta: 325.6 MB). Free memory was 122.5 MB in the beginning and 97.7 MB in the end (delta: 24.8 MB). Peak memory consumption was 362.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...