/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 SingleStatement --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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:41:02,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:41:02,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:41:03,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:41:03,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:41:03,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:41:03,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:41:03,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:41:03,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:41:03,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:41:03,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:41:03,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:41:03,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:41:03,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:41:03,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:41:03,062 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:41:03,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:41:03,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:41:03,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:41:03,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:41:03,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:41:03,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:41:03,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:41:03,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:41:03,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:41:03,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:41:03,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:41:03,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:41:03,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:41:03,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:41:03,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:41:03,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:41:03,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:41:03,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:41:03,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:41:03,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:41:03,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:41:03,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:41:03,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:41:03,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:41:03,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:41:03,100 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 [2020-09-25 06:41:03,151 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:41:03,151 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:41:03,154 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:41:03,154 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:41:03,154 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:41:03,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:41:03,155 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:41:03,155 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:41:03,155 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:41:03,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:41:03,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:41:03,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:41:03,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:41:03,157 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:41:03,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:41:03,158 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:41:03,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:41:03,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:41:03,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:41:03,159 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:41:03,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:41:03,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:41:03,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:41:03,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:41:03,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:41:03,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:41:03,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:41:03,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:41:03,160 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:41:03,161 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 -> SingleStatement 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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:41:03,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:41:03,687 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:41:03,692 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:41:03,695 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:41:03,695 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:41:03,696 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2020-09-25 06:41:03,791 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5d8fc972/01f4de420b39432c921ff97e6b29baf8/FLAGaae1265bc [2020-09-25 06:41:04,421 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:41:04,422 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2020-09-25 06:41:04,441 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5d8fc972/01f4de420b39432c921ff97e6b29baf8/FLAGaae1265bc [2020-09-25 06:41:04,686 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5d8fc972/01f4de420b39432c921ff97e6b29baf8 [2020-09-25 06:41:04,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:41:04,706 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:41:04,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:41:04,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:41:04,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:41:04,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:41:04" (1/1) ... [2020-09-25 06:41:04,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92e95d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:04, skipping insertion in model container [2020-09-25 06:41:04,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:41:04" (1/1) ... [2020-09-25 06:41:04,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:41:04,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:41:05,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:41:05,341 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:41:05,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:41:05,466 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:41:05,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:05 WrapperNode [2020-09-25 06:41:05,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:41:05,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:41:05,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:41:05,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:41:05,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:05" (1/1) ... [2020-09-25 06:41:05,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:05" (1/1) ... [2020-09-25 06:41:05,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:05" (1/1) ... [2020-09-25 06:41:05,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:05" (1/1) ... [2020-09-25 06:41:05,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:05" (1/1) ... [2020-09-25 06:41:05,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:05" (1/1) ... [2020-09-25 06:41:05,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:05" (1/1) ... [2020-09-25 06:41:05,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:41:05,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:41:05,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:41:05,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:41:05,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:05" (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 [2020-09-25 06:41:05,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:41:05,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:41:05,650 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:41:05,650 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 06:41:05,650 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 06:41:05,650 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 06:41:05,650 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 06:41:05,650 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 06:41:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 06:41:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 06:41:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 06:41:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 06:41:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 06:41:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 06:41:05,652 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 06:41:05,652 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 06:41:05,652 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 06:41:05,652 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 06:41:05,652 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 06:41:05,653 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 06:41:05,653 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 06:41:05,653 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 06:41:05,653 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 06:41:05,654 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 06:41:05,654 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 06:41:05,654 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 06:41:05,654 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 06:41:05,654 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 06:41:05,654 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 06:41:05,655 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 06:41:05,655 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 06:41:05,655 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 06:41:05,655 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 06:41:05,655 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 06:41:05,655 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 06:41:05,656 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 06:41:05,656 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 06:41:05,656 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 06:41:05,656 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 06:41:05,656 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 06:41:05,656 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 06:41:05,657 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 06:41:05,657 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 06:41:05,657 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 06:41:05,657 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 06:41:05,657 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 06:41:05,657 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 06:41:05,658 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 06:41:05,658 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 06:41:05,658 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 06:41:05,658 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 06:41:05,658 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 06:41:05,658 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 06:41:05,659 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:41:05,659 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 06:41:05,659 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 06:41:05,659 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:41:05,659 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 06:41:05,659 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 06:41:05,660 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 06:41:05,660 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 06:41:05,660 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 06:41:05,660 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 06:41:05,660 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 06:41:05,660 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 06:41:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 06:41:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 06:41:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 06:41:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 06:41:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 06:41:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 06:41:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 06:41:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 06:41:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 06:41:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 06:41:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 06:41:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 06:41:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 06:41:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 06:41:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 06:41:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 06:41:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 06:41:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 06:41:05,664 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 06:41:05,664 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 06:41:05,664 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 06:41:05,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 06:41:05,664 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 06:41:05,664 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 06:41:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 06:41:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 06:41:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 06:41:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 06:41:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 06:41:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 06:41:05,666 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 06:41:05,666 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 06:41:05,666 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 06:41:05,666 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 06:41:05,666 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 06:41:05,666 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 06:41:05,667 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 06:41:05,667 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 06:41:05,667 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 06:41:05,667 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 06:41:05,667 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 06:41:05,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:41:05,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:41:05,668 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:41:05,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:41:05,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:41:05,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:41:05,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:41:05,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:41:05,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:41:05,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:41:05,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:41:06,401 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:41:06,401 INFO L295 CfgBuilder]: Removed 17 assume(true) statements. [2020-09-25 06:41:06,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:41:06 BoogieIcfgContainer [2020-09-25 06:41:06,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:41:06,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:41:06,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:41:06,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:41:06,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:41:04" (1/3) ... [2020-09-25 06:41:06,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae0f26c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:41:06, skipping insertion in model container [2020-09-25 06:41:06,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:05" (2/3) ... [2020-09-25 06:41:06,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae0f26c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:41:06, skipping insertion in model container [2020-09-25 06:41:06,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:41:06" (3/3) ... [2020-09-25 06:41:06,418 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel-1.i [2020-09-25 06:41:06,430 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:41:06,442 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-09-25 06:41:06,463 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-09-25 06:41:06,490 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:41:06,490 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:41:06,490 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:41:06,490 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:41:06,491 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:41:06,491 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:41:06,491 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:41:06,491 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:41:06,517 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states. [2020-09-25 06:41:06,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 06:41:06,527 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:06,528 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:41:06,529 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:41:06,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:06,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1523709425, now seen corresponding path program 1 times [2020-09-25 06:41:06,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:06,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1876785349] [2020-09-25 06:41:06,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:06,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:06,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:07,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:07,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 06:41:07,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:41:07,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 704 [2020-09-25 06:41:07,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:07,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:07,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:07,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 06:41:07,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:07,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 06:41:07,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:07,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:07,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:07,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:07,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:07,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 06:41:07,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:07,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:07,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:07,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:07,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:07,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:07,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:07,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1876785349] [2020-09-25 06:41:07,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:07,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:41:07,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89165330] [2020-09-25 06:41:07,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:41:07,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:07,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:41:07,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:41:07,571 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 3 states. [2020-09-25 06:41:07,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:07,933 INFO L93 Difference]: Finished difference Result 228 states and 286 transitions. [2020-09-25 06:41:07,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:41:07,935 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-09-25 06:41:07,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:07,948 INFO L225 Difference]: With dead ends: 228 [2020-09-25 06:41:07,948 INFO L226 Difference]: Without dead ends: 100 [2020-09-25 06:41:07,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:41:07,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-09-25 06:41:07,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-09-25 06:41:07,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-09-25 06:41:07,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 103 transitions. [2020-09-25 06:41:08,001 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 103 transitions. Word has length 23 [2020-09-25 06:41:08,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:08,002 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 103 transitions. [2020-09-25 06:41:08,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:41:08,002 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 103 transitions. [2020-09-25 06:41:08,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-25 06:41:08,003 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:08,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:41:08,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:41:08,004 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:41:08,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:08,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1887154194, now seen corresponding path program 1 times [2020-09-25 06:41:08,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:08,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1353514100] [2020-09-25 06:41:08,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:08,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:08,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:08,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 06:41:08,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:08,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-09-25 06:41:08,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:08,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:08,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:41:08,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 06:41:08,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 06:41:08,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:08,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:08,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:08,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:08,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:08,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:08,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:41:08,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:08,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:08,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:08,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:08,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:08,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:08,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:08,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1353514100] [2020-09-25 06:41:08,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:08,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:41:08,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221623251] [2020-09-25 06:41:08,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:41:08,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:08,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:41:08,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:41:08,479 INFO L87 Difference]: Start difference. First operand 100 states and 103 transitions. Second operand 8 states. [2020-09-25 06:41:08,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:08,867 INFO L93 Difference]: Finished difference Result 121 states and 126 transitions. [2020-09-25 06:41:08,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:41:08,867 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-09-25 06:41:08,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:08,869 INFO L225 Difference]: With dead ends: 121 [2020-09-25 06:41:08,869 INFO L226 Difference]: Without dead ends: 119 [2020-09-25 06:41:08,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:41:08,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-09-25 06:41:08,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 98. [2020-09-25 06:41:08,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-25 06:41:08,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 101 transitions. [2020-09-25 06:41:08,883 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 101 transitions. Word has length 25 [2020-09-25 06:41:08,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:08,884 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 101 transitions. [2020-09-25 06:41:08,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:41:08,884 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 101 transitions. [2020-09-25 06:41:08,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-25 06:41:08,885 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:08,886 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:41:08,886 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:41:08,886 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:41:08,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:08,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1939387545, now seen corresponding path program 1 times [2020-09-25 06:41:08,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:08,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [570843485] [2020-09-25 06:41:08,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:08,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:09,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:09,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 06:41:09,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:09,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-09-25 06:41:09,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:09,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:09,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:41:09,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 06:41:09,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 06:41:09,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:41:09,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:09,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:09,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:09,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:09,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:09,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:41:09,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:09,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:09,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:09,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:09,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:09,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:09,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:09,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [570843485] [2020-09-25 06:41:09,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:09,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:41:09,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412362072] [2020-09-25 06:41:09,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:41:09,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:09,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:41:09,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:41:09,180 INFO L87 Difference]: Start difference. First operand 98 states and 101 transitions. Second operand 6 states. [2020-09-25 06:41:09,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:09,450 INFO L93 Difference]: Finished difference Result 146 states and 152 transitions. [2020-09-25 06:41:09,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:41:09,451 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-09-25 06:41:09,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:09,453 INFO L225 Difference]: With dead ends: 146 [2020-09-25 06:41:09,453 INFO L226 Difference]: Without dead ends: 143 [2020-09-25 06:41:09,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:41:09,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-09-25 06:41:09,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 107. [2020-09-25 06:41:09,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-09-25 06:41:09,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 111 transitions. [2020-09-25 06:41:09,468 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 111 transitions. Word has length 29 [2020-09-25 06:41:09,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:09,468 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 111 transitions. [2020-09-25 06:41:09,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:41:09,469 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2020-09-25 06:41:09,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 06:41:09,470 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:09,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:41:09,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:41:09,471 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:41:09,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:09,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1026590761, now seen corresponding path program 1 times [2020-09-25 06:41:09,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:09,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [784681063] [2020-09-25 06:41:09,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:09,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:09,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:10,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:10,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 06:41:10,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:41:10,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 603 [2020-09-25 06:41:10,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:10,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:10,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:41:10,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-09-25 06:41:10,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 06:41:10,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:10,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:10,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:10,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:10,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:10,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:10,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:41:10,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:10,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:10,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:10,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:10,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:10,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:10,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:10,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [784681063] [2020-09-25 06:41:10,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:10,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:41:10,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242629339] [2020-09-25 06:41:10,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:41:10,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:10,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:41:10,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:41:10,268 INFO L87 Difference]: Start difference. First operand 107 states and 111 transitions. Second operand 6 states. [2020-09-25 06:41:10,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:10,602 INFO L93 Difference]: Finished difference Result 162 states and 169 transitions. [2020-09-25 06:41:10,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:41:10,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-09-25 06:41:10,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:10,605 INFO L225 Difference]: With dead ends: 162 [2020-09-25 06:41:10,605 INFO L226 Difference]: Without dead ends: 140 [2020-09-25 06:41:10,606 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:41:10,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-09-25 06:41:10,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 112. [2020-09-25 06:41:10,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-25 06:41:10,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 116 transitions. [2020-09-25 06:41:10,616 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 116 transitions. Word has length 38 [2020-09-25 06:41:10,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:10,617 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 116 transitions. [2020-09-25 06:41:10,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:41:10,617 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 116 transitions. [2020-09-25 06:41:10,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 06:41:10,619 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:10,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:41:10,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:41:10,619 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:41:10,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:10,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1637573847, now seen corresponding path program 1 times [2020-09-25 06:41:10,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:10,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765364214] [2020-09-25 06:41:10,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:10,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:10,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:10,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:10,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 06:41:10,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:10,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-09-25 06:41:10,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:10,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:10,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:41:10,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-25 06:41:10,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:41:10,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:10,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:10,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:10,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:10,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:10,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:10,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:41:10,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:10,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:10,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:10,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:10,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:10,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:10,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:10,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765364214] [2020-09-25 06:41:10,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:10,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:41:10,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10944850] [2020-09-25 06:41:11,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:41:11,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:11,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:41:11,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:41:11,001 INFO L87 Difference]: Start difference. First operand 112 states and 116 transitions. Second operand 5 states. [2020-09-25 06:41:11,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:11,260 INFO L93 Difference]: Finished difference Result 117 states and 121 transitions. [2020-09-25 06:41:11,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:41:11,261 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-09-25 06:41:11,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:11,263 INFO L225 Difference]: With dead ends: 117 [2020-09-25 06:41:11,263 INFO L226 Difference]: Without dead ends: 114 [2020-09-25 06:41:11,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:41:11,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-25 06:41:11,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 109. [2020-09-25 06:41:11,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-25 06:41:11,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 113 transitions. [2020-09-25 06:41:11,273 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 113 transitions. Word has length 38 [2020-09-25 06:41:11,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:11,273 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 113 transitions. [2020-09-25 06:41:11,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:41:11,274 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 113 transitions. [2020-09-25 06:41:11,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-25 06:41:11,275 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:11,276 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:41:11,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:41:11,277 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:41:11,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:11,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1162057661, now seen corresponding path program 1 times [2020-09-25 06:41:11,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:11,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2114859988] [2020-09-25 06:41:11,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:11,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:11,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:11,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:11,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 06:41:11,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:11,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-25 06:41:11,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:11,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:11,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:41:11,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 06:41:11,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 06:41:11,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:11,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:11,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:11,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:11,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:11,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:11,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:41:11,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:11,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:11,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:11,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:11,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:11,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:11,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:11,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2114859988] [2020-09-25 06:41:11,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:11,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:41:11,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994553236] [2020-09-25 06:41:11,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:41:11,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:11,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:41:11,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:41:11,656 INFO L87 Difference]: Start difference. First operand 109 states and 113 transitions. Second operand 5 states. [2020-09-25 06:41:11,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:11,855 INFO L93 Difference]: Finished difference Result 112 states and 116 transitions. [2020-09-25 06:41:11,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:41:11,856 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-09-25 06:41:11,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:11,857 INFO L225 Difference]: With dead ends: 112 [2020-09-25 06:41:11,857 INFO L226 Difference]: Without dead ends: 109 [2020-09-25 06:41:11,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:41:11,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-25 06:41:11,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2020-09-25 06:41:11,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-09-25 06:41:11,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 110 transitions. [2020-09-25 06:41:11,865 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 110 transitions. Word has length 42 [2020-09-25 06:41:11,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:11,866 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 110 transitions. [2020-09-25 06:41:11,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:41:11,866 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 110 transitions. [2020-09-25 06:41:11,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-25 06:41:11,867 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:11,867 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:41:11,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:41:11,868 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:41:11,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:11,868 INFO L82 PathProgramCache]: Analyzing trace with hash -41137780, now seen corresponding path program 1 times [2020-09-25 06:41:11,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:11,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [786572809] [2020-09-25 06:41:11,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:11,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:12,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:13,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:13,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 06:41:13,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:41:13,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1777 [2020-09-25 06:41:13,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:13,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:13,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 06:41:13,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 06:41:13,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 06:41:13,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:13,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:13,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:13,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:13,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:13,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:13,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:13,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:41:13,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:13,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:13,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:13,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:13,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [786572809] [2020-09-25 06:41:13,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:13,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 06:41:13,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170032565] [2020-09-25 06:41:13,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 06:41:13,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:13,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 06:41:13,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-09-25 06:41:13,937 INFO L87 Difference]: Start difference. First operand 106 states and 110 transitions. Second operand 13 states. [2020-09-25 06:41:14,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:14,689 INFO L93 Difference]: Finished difference Result 156 states and 163 transitions. [2020-09-25 06:41:14,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 06:41:14,690 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-09-25 06:41:14,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:14,691 INFO L225 Difference]: With dead ends: 156 [2020-09-25 06:41:14,692 INFO L226 Difference]: Without dead ends: 154 [2020-09-25 06:41:14,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2020-09-25 06:41:14,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-09-25 06:41:14,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 132. [2020-09-25 06:41:14,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-09-25 06:41:14,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 138 transitions. [2020-09-25 06:41:14,701 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 138 transitions. Word has length 44 [2020-09-25 06:41:14,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:14,701 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 138 transitions. [2020-09-25 06:41:14,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 06:41:14,702 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 138 transitions. [2020-09-25 06:41:14,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-25 06:41:14,703 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:14,703 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:41:14,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 06:41:14,703 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:41:14,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:14,704 INFO L82 PathProgramCache]: Analyzing trace with hash 784866741, now seen corresponding path program 1 times [2020-09-25 06:41:14,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:14,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [986509039] [2020-09-25 06:41:14,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:14,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:14,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:14,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:15,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:16,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:18,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:18,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:19,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:19,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:19,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:19,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-25 06:41:19,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 06:41:19,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5116 [2020-09-25 06:41:19,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:19,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:19,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:41:19,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 06:41:19,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 06:41:19,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:19,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:19,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:19,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:19,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:19,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:19,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:41:19,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:19,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:19,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:19,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:19,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:19,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:19,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:19,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [986509039] [2020-09-25 06:41:19,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:41:19,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 06:41:19,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066157396] [2020-09-25 06:41:19,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:41:19,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:19,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:41:19,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:41:19,971 INFO L87 Difference]: Start difference. First operand 132 states and 138 transitions. Second operand 7 states. [2020-09-25 06:41:20,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:20,320 INFO L93 Difference]: Finished difference Result 162 states and 169 transitions. [2020-09-25 06:41:20,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:41:20,320 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-09-25 06:41:20,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:20,321 INFO L225 Difference]: With dead ends: 162 [2020-09-25 06:41:20,321 INFO L226 Difference]: Without dead ends: 123 [2020-09-25 06:41:20,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:41:20,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-09-25 06:41:20,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 120. [2020-09-25 06:41:20,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-09-25 06:41:20,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 125 transitions. [2020-09-25 06:41:20,328 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 125 transitions. Word has length 45 [2020-09-25 06:41:20,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:20,329 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 125 transitions. [2020-09-25 06:41:20,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:41:20,329 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 125 transitions. [2020-09-25 06:41:20,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 06:41:20,335 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:20,335 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:41:20,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 06:41:20,336 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:41:20,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:20,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1051665877, now seen corresponding path program 1 times [2020-09-25 06:41:20,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:20,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [229788316] [2020-09-25 06:41:20,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:20,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:20,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:21,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:24,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:24,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 06:41:24,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:41:24,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4244 [2020-09-25 06:41:24,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:24,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:24,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 06:41:24,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 06:41:24,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 06:41:24,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:41:24,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:24,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:24,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:24,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:24,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:24,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:24,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:41:24,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:24,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:24,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:24,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:24,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:24,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:24,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:24,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [229788316] [2020-09-25 06:41:24,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:24,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-09-25 06:41:24,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238428640] [2020-09-25 06:41:24,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 06:41:24,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:24,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 06:41:24,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-09-25 06:41:24,911 INFO L87 Difference]: Start difference. First operand 120 states and 125 transitions. Second operand 17 states. [2020-09-25 06:41:25,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:25,780 INFO L93 Difference]: Finished difference Result 136 states and 142 transitions. [2020-09-25 06:41:25,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 06:41:25,781 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 54 [2020-09-25 06:41:25,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:25,782 INFO L225 Difference]: With dead ends: 136 [2020-09-25 06:41:25,782 INFO L226 Difference]: Without dead ends: 134 [2020-09-25 06:41:25,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=267, Invalid=663, Unknown=0, NotChecked=0, Total=930 [2020-09-25 06:41:25,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-09-25 06:41:25,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 92. [2020-09-25 06:41:25,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-25 06:41:25,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 95 transitions. [2020-09-25 06:41:25,789 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 95 transitions. Word has length 54 [2020-09-25 06:41:25,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:25,791 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 95 transitions. [2020-09-25 06:41:25,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 06:41:25,791 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 95 transitions. [2020-09-25 06:41:25,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-25 06:41:25,793 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:25,793 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:41:25,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 06:41:25,794 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:41:25,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:25,794 INFO L82 PathProgramCache]: Analyzing trace with hash 999535374, now seen corresponding path program 1 times [2020-09-25 06:41:25,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:25,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [694555975] [2020-09-25 06:41:25,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:25,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:26,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:26,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 06:41:26,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:26,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 931 [2020-09-25 06:41:26,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:26,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:26,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 06:41:26,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 06:41:26,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 06:41:26,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:27,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:27,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:27,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:27,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:27,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:27,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:41:27,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:27,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:27,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:27,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:27,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:27,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:27,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:27,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [694555975] [2020-09-25 06:41:27,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:41:27,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 06:41:27,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363434308] [2020-09-25 06:41:27,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 06:41:27,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:27,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 06:41:27,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-09-25 06:41:27,275 INFO L87 Difference]: Start difference. First operand 92 states and 95 transitions. Second operand 17 states. [2020-09-25 06:41:28,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:28,904 INFO L93 Difference]: Finished difference Result 181 states and 189 transitions. [2020-09-25 06:41:28,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 06:41:28,904 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 55 [2020-09-25 06:41:28,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:28,906 INFO L225 Difference]: With dead ends: 181 [2020-09-25 06:41:28,906 INFO L226 Difference]: Without dead ends: 178 [2020-09-25 06:41:28,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-09-25 06:41:28,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-09-25 06:41:28,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 125. [2020-09-25 06:41:28,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-09-25 06:41:28,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 130 transitions. [2020-09-25 06:41:28,917 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 130 transitions. Word has length 55 [2020-09-25 06:41:28,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:28,917 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 130 transitions. [2020-09-25 06:41:28,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 06:41:28,918 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 130 transitions. [2020-09-25 06:41:28,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 06:41:28,919 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:28,919 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:41:28,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 06:41:28,921 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:41:28,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:28,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1380187476, now seen corresponding path program 1 times [2020-09-25 06:41:28,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:28,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799189978] [2020-09-25 06:41:28,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:28,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:29,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:30,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:30,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:33,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:33,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 06:41:33,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:41:33,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 06:41:33,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:33,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:33,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:41:33,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-09-25 06:41:33,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 06:41:33,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:41:34,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:34,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:34,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:34,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:34,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:34,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:41:34,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:34,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:34,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:34,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:34,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:34,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:34,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 06:41:34,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799189978] [2020-09-25 06:41:34,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:34,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:41:34,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13344409] [2020-09-25 06:41:34,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:41:34,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:34,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:41:34,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:41:34,093 INFO L87 Difference]: Start difference. First operand 125 states and 130 transitions. Second operand 6 states. [2020-09-25 06:41:34,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:34,390 INFO L93 Difference]: Finished difference Result 153 states and 160 transitions. [2020-09-25 06:41:34,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:41:34,390 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-09-25 06:41:34,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:34,392 INFO L225 Difference]: With dead ends: 153 [2020-09-25 06:41:34,392 INFO L226 Difference]: Without dead ends: 131 [2020-09-25 06:41:34,393 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:41:34,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-09-25 06:41:34,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2020-09-25 06:41:34,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-25 06:41:34,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 133 transitions. [2020-09-25 06:41:34,399 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 133 transitions. Word has length 64 [2020-09-25 06:41:34,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:34,399 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 133 transitions. [2020-09-25 06:41:34,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:41:34,399 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 133 transitions. [2020-09-25 06:41:34,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-25 06:41:34,400 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:34,400 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:41:34,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 06:41:34,401 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:41:34,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:34,401 INFO L82 PathProgramCache]: Analyzing trace with hash 754417445, now seen corresponding path program 1 times [2020-09-25 06:41:34,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:34,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375533209] [2020-09-25 06:41:34,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:34,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:36,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:36,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 06:41:36,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:36,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2335 [2020-09-25 06:41:36,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:36,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:36,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 06:41:36,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 06:41:36,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 06:41:36,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:41:37,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:37,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:37,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:37,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:37,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:37,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:41:37,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:37,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:37,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:37,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:37,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:37,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:41:37,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:37,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1375533209] [2020-09-25 06:41:37,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:41:37,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-09-25 06:41:37,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662298619] [2020-09-25 06:41:37,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-25 06:41:37,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:37,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-25 06:41:37,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2020-09-25 06:41:37,706 INFO L87 Difference]: Start difference. First operand 128 states and 133 transitions. Second operand 22 states. [2020-09-25 06:41:38,868 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-09-25 06:41:39,156 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2020-09-25 06:41:40,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:40,090 INFO L93 Difference]: Finished difference Result 205 states and 212 transitions. [2020-09-25 06:41:40,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 06:41:40,091 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 65 [2020-09-25 06:41:40,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:40,092 INFO L225 Difference]: With dead ends: 205 [2020-09-25 06:41:40,092 INFO L226 Difference]: Without dead ends: 202 [2020-09-25 06:41:40,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=355, Invalid=1451, Unknown=0, NotChecked=0, Total=1806 [2020-09-25 06:41:40,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-09-25 06:41:40,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 140. [2020-09-25 06:41:40,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-09-25 06:41:40,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 145 transitions. [2020-09-25 06:41:40,100 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 145 transitions. Word has length 65 [2020-09-25 06:41:40,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:40,100 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 145 transitions. [2020-09-25 06:41:40,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-25 06:41:40,100 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 145 transitions. [2020-09-25 06:41:40,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 06:41:40,101 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:40,101 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:41:40,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 06:41:40,102 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:41:40,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:40,102 INFO L82 PathProgramCache]: Analyzing trace with hash 715756074, now seen corresponding path program 1 times [2020-09-25 06:41:40,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:40,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2002696309] [2020-09-25 06:41:40,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:40,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:40,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:40,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:42,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:43,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:44,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:45,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:45,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 06:41:45,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:41:45,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5123 [2020-09-25 06:41:45,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:45,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:45,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 06:41:45,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-09-25 06:41:45,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 06:41:45,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:41:45,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:45,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:45,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:45,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:45,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:45,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:41:45,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:45,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:45,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:45,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:45,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:45,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:45,685 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:45,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2002696309] [2020-09-25 06:41:45,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:41:45,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 06:41:45,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012269317] [2020-09-25 06:41:45,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 06:41:45,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:45,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 06:41:45,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2020-09-25 06:41:45,692 INFO L87 Difference]: Start difference. First operand 140 states and 145 transitions. Second operand 16 states. [2020-09-25 06:41:46,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:46,749 INFO L93 Difference]: Finished difference Result 229 states and 238 transitions. [2020-09-25 06:41:46,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 06:41:46,750 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 71 [2020-09-25 06:41:46,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:46,752 INFO L225 Difference]: With dead ends: 229 [2020-09-25 06:41:46,752 INFO L226 Difference]: Without dead ends: 207 [2020-09-25 06:41:46,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=174, Invalid=818, Unknown=0, NotChecked=0, Total=992 [2020-09-25 06:41:46,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2020-09-25 06:41:46,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 168. [2020-09-25 06:41:46,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-09-25 06:41:46,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 174 transitions. [2020-09-25 06:41:46,761 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 174 transitions. Word has length 71 [2020-09-25 06:41:46,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:46,761 INFO L479 AbstractCegarLoop]: Abstraction has 168 states and 174 transitions. [2020-09-25 06:41:46,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 06:41:46,761 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 174 transitions. [2020-09-25 06:41:46,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-25 06:41:46,762 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:46,762 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:41:46,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 06:41:46,763 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:41:46,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:46,763 INFO L82 PathProgramCache]: Analyzing trace with hash 181469332, now seen corresponding path program 2 times [2020-09-25 06:41:46,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:46,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1613735919] [2020-09-25 06:41:46,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:46,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:47,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:48,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:49,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking...