/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-queue-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 23:20:25,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 23:20:25,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 23:20:25,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 23:20:25,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 23:20:25,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 23:20:25,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 23:20:25,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 23:20:25,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 23:20:25,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 23:20:25,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 23:20:25,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 23:20:25,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 23:20:25,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 23:20:25,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 23:20:25,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 23:20:25,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 23:20:25,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 23:20:25,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 23:20:25,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 23:20:25,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 23:20:25,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 23:20:25,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 23:20:25,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 23:20:25,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 23:20:25,091 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 23:20:25,091 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 23:20:25,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 23:20:25,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 23:20:25,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 23:20:25,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 23:20:25,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 23:20:25,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 23:20:25,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 23:20:25,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 23:20:25,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 23:20:25,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 23:20:25,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 23:20:25,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 23:20:25,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 23:20:25,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 23:20:25,101 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 23:20:25,125 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 23:20:25,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 23:20:25,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 23:20:25,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 23:20:25,127 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 23:20:25,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 23:20:25,128 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 23:20:25,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 23:20:25,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 23:20:25,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 23:20:25,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 23:20:25,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 23:20:25,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 23:20:25,129 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 23:20:25,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 23:20:25,129 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 23:20:25,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 23:20:25,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 23:20:25,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 23:20:25,130 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 23:20:25,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 23:20:25,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 23:20:25,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 23:20:25,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 23:20:25,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 23:20:25,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 23:20:25,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 23:20:25,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 23:20:25,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 23:20:25,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 23:20:25,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 23:20:25,471 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 23:20:25,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 23:20:25,481 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 23:20:25,481 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 23:20:25,482 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-queue-1.i [2020-10-14 23:20:25,552 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/58a1e19e8/4022a85e0d144db7a11b66c95571c2ea/FLAG64ab5a7b1 [2020-10-14 23:20:26,102 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 23:20:26,106 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-queue-1.i [2020-10-14 23:20:26,124 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/58a1e19e8/4022a85e0d144db7a11b66c95571c2ea/FLAG64ab5a7b1 [2020-10-14 23:20:26,411 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/58a1e19e8/4022a85e0d144db7a11b66c95571c2ea [2020-10-14 23:20:26,419 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 23:20:26,421 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 23:20:26,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 23:20:26,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 23:20:26,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 23:20:26,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:20:26" (1/1) ... [2020-10-14 23:20:26,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5996606d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:26, skipping insertion in model container [2020-10-14 23:20:26,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:20:26" (1/1) ... [2020-10-14 23:20:26,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 23:20:26,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 23:20:26,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:20:26,914 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 23:20:26,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:20:27,027 INFO L208 MainTranslator]: Completed translation [2020-10-14 23:20:27,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:27 WrapperNode [2020-10-14 23:20:27,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 23:20:27,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 23:20:27,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 23:20:27,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 23:20:27,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:27" (1/1) ... [2020-10-14 23:20:27,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:27" (1/1) ... [2020-10-14 23:20:27,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:27" (1/1) ... [2020-10-14 23:20:27,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:27" (1/1) ... [2020-10-14 23:20:27,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:27" (1/1) ... [2020-10-14 23:20:27,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:27" (1/1) ... [2020-10-14 23:20:27,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:27" (1/1) ... [2020-10-14 23:20:27,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 23:20:27,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 23:20:27,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 23:20:27,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 23:20:27,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:27" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 23:20:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 23:20:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 23:20:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 23:20:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-14 23:20:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-14 23:20:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-14 23:20:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-14 23:20:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-14 23:20:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-14 23:20:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-14 23:20:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-14 23:20:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-14 23:20:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-14 23:20:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-14 23:20:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-14 23:20:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-14 23:20:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-14 23:20:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-14 23:20:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-14 23:20:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-14 23:20:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-14 23:20:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-14 23:20:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-14 23:20:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-14 23:20:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-14 23:20:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-14 23:20:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-14 23:20:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-14 23:20:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-14 23:20:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-14 23:20:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-14 23:20:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-14 23:20:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-14 23:20:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-14 23:20:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-14 23:20:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-14 23:20:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-14 23:20:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-14 23:20:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-14 23:20:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-14 23:20:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-14 23:20:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-14 23:20:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-14 23:20:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-14 23:20:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-14 23:20:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-14 23:20:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-14 23:20:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-14 23:20:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-14 23:20:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-14 23:20:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-14 23:20:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-14 23:20:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-14 23:20:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 23:20:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 23:20:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-14 23:20:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 23:20:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-14 23:20:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-14 23:20:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-14 23:20:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-14 23:20:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-14 23:20:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 23:20:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-14 23:20:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-14 23:20:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-14 23:20:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 23:20:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-14 23:20:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-14 23:20:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-14 23:20:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-14 23:20:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-14 23:20:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-14 23:20:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-14 23:20:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-14 23:20:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-14 23:20:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-14 23:20:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-14 23:20:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-14 23:20:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-14 23:20:27,199 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-14 23:20:27,199 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-14 23:20:27,199 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-14 23:20:27,199 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-14 23:20:27,199 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-14 23:20:27,199 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-14 23:20:27,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-14 23:20:27,200 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-14 23:20:27,200 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-14 23:20:27,200 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-14 23:20:27,200 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-14 23:20:27,200 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-14 23:20:27,200 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-14 23:20:27,200 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-14 23:20:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-14 23:20:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-14 23:20:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-14 23:20:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-14 23:20:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-14 23:20:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-14 23:20:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-14 23:20:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-14 23:20:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-14 23:20:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-14 23:20:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-14 23:20:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-14 23:20:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 23:20:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 23:20:27,203 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 23:20:27,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 23:20:27,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 23:20:27,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 23:20:27,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 23:20:27,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 23:20:27,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 23:20:27,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 23:20:27,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 23:20:27,931 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 23:20:27,932 INFO L295 CfgBuilder]: Removed 31 assume(true) statements. [2020-10-14 23:20:27,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:20:27 BoogieIcfgContainer [2020-10-14 23:20:27,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 23:20:27,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 23:20:27,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 23:20:27,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 23:20:27,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:20:26" (1/3) ... [2020-10-14 23:20:27,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22b8c6d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:20:27, skipping insertion in model container [2020-10-14 23:20:27,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:27" (2/3) ... [2020-10-14 23:20:27,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22b8c6d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:20:27, skipping insertion in model container [2020-10-14 23:20:27,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:20:27" (3/3) ... [2020-10-14 23:20:27,959 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-queue-1.i [2020-10-14 23:20:27,971 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 23:20:27,981 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 14 error locations. [2020-10-14 23:20:27,996 INFO L251 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2020-10-14 23:20:28,029 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 23:20:28,029 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 23:20:28,029 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 23:20:28,029 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 23:20:28,030 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 23:20:28,030 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 23:20:28,030 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 23:20:28,030 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 23:20:28,051 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-10-14 23:20:28,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-14 23:20:28,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:28,060 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:28,060 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:28,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:28,067 INFO L82 PathProgramCache]: Analyzing trace with hash 786631415, now seen corresponding path program 1 times [2020-10-14 23:20:28,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:28,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [363570797] [2020-10-14 23:20:28,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:28,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:28,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:28,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:28,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 23:20:28,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:20:28,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-14 23:20:28,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:28,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:28,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:20:28,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:28,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 23:20:28,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 23:20:28,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:28,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:28,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:28,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:28,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:28,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:20:28,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:28,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:28,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:28,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:28,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:28,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:28,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:28,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [363570797] [2020-10-14 23:20:28,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:20:28,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 23:20:28,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342155019] [2020-10-14 23:20:28,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 23:20:28,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:28,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 23:20:28,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 23:20:28,563 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 4 states. [2020-10-14 23:20:28,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:28,851 INFO L93 Difference]: Finished difference Result 165 states and 277 transitions. [2020-10-14 23:20:28,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 23:20:28,853 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-14 23:20:28,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:28,865 INFO L225 Difference]: With dead ends: 165 [2020-10-14 23:20:28,865 INFO L226 Difference]: Without dead ends: 74 [2020-10-14 23:20:28,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 23:20:28,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-14 23:20:28,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-14 23:20:28,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-14 23:20:28,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 83 transitions. [2020-10-14 23:20:28,913 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 83 transitions. Word has length 9 [2020-10-14 23:20:28,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:28,913 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 83 transitions. [2020-10-14 23:20:28,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 23:20:28,914 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 83 transitions. [2020-10-14 23:20:28,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-14 23:20:28,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:28,915 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:28,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 23:20:28,915 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:28,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:28,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1923530661, now seen corresponding path program 1 times [2020-10-14 23:20:28,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:28,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [918993458] [2020-10-14 23:20:28,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:28,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:29,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:29,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 23:20:29,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:29,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-14 23:20:29,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:29,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:29,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:20:29,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 23:20:29,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:20:29,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:29,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:29,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:29,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:29,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:29,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:29,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 23:20:29,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:29,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:29,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:29,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:29,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:29,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:29,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:29,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [918993458] [2020-10-14 23:20:29,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:20:29,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 23:20:29,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167990836] [2020-10-14 23:20:29,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 23:20:29,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:29,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 23:20:29,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 23:20:29,207 INFO L87 Difference]: Start difference. First operand 74 states and 83 transitions. Second operand 4 states. [2020-10-14 23:20:29,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:29,365 INFO L93 Difference]: Finished difference Result 74 states and 83 transitions. [2020-10-14 23:20:29,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 23:20:29,366 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-14 23:20:29,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:29,368 INFO L225 Difference]: With dead ends: 74 [2020-10-14 23:20:29,368 INFO L226 Difference]: Without dead ends: 72 [2020-10-14 23:20:29,369 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 23:20:29,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-14 23:20:29,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-14 23:20:29,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-14 23:20:29,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 81 transitions. [2020-10-14 23:20:29,380 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 81 transitions. Word has length 13 [2020-10-14 23:20:29,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:29,381 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 81 transitions. [2020-10-14 23:20:29,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 23:20:29,381 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 81 transitions. [2020-10-14 23:20:29,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-14 23:20:29,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:29,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:29,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 23:20:29,383 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:29,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:29,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1449483421, now seen corresponding path program 1 times [2020-10-14 23:20:29,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:29,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1083786155] [2020-10-14 23:20:29,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:29,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:29,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:29,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:29,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 23:20:29,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:29,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 23:20:29,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:29,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:29,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:20:29,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:29,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:20:29,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:29,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:29,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:29,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:29,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:29,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:29,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:20:29,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:29,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:29,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:29,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:29,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:29,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:29,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:29,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1083786155] [2020-10-14 23:20:29,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:20:29,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 23:20:29,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988928274] [2020-10-14 23:20:29,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 23:20:29,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:29,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 23:20:29,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 23:20:29,508 INFO L87 Difference]: Start difference. First operand 72 states and 81 transitions. Second operand 4 states. [2020-10-14 23:20:29,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:29,709 INFO L93 Difference]: Finished difference Result 157 states and 182 transitions. [2020-10-14 23:20:29,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 23:20:29,710 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-14 23:20:29,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:29,711 INFO L225 Difference]: With dead ends: 157 [2020-10-14 23:20:29,711 INFO L226 Difference]: Without dead ends: 91 [2020-10-14 23:20:29,713 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 23:20:29,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-10-14 23:20:29,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 80. [2020-10-14 23:20:29,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-14 23:20:29,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 90 transitions. [2020-10-14 23:20:29,724 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 90 transitions. Word has length 16 [2020-10-14 23:20:29,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:29,725 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 90 transitions. [2020-10-14 23:20:29,725 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 23:20:29,725 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 90 transitions. [2020-10-14 23:20:29,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-14 23:20:29,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:29,726 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] [2020-10-14 23:20:29,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 23:20:29,727 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:29,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:29,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1095322203, now seen corresponding path program 1 times [2020-10-14 23:20:29,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:29,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1162568797] [2020-10-14 23:20:29,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:29,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:29,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:29,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:29,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:29,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:29,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 23:20:29,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 23:20:29,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-14 23:20:29,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:29,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:29,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:20:29,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:29,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:20:29,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:29,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:29,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:29,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:29,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:29,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:29,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:29,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:20:29,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:29,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:29,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:29,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:29,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:29,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:29,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:29,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1162568797] [2020-10-14 23:20:29,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:20:29,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 23:20:29,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040867439] [2020-10-14 23:20:29,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 23:20:29,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:29,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 23:20:29,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 23:20:29,987 INFO L87 Difference]: Start difference. First operand 80 states and 90 transitions. Second operand 5 states. [2020-10-14 23:20:30,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:30,164 INFO L93 Difference]: Finished difference Result 100 states and 116 transitions. [2020-10-14 23:20:30,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 23:20:30,165 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-14 23:20:30,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:30,166 INFO L225 Difference]: With dead ends: 100 [2020-10-14 23:20:30,167 INFO L226 Difference]: Without dead ends: 76 [2020-10-14 23:20:30,167 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 [2020-10-14 23:20:30,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-14 23:20:30,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-10-14 23:20:30,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-14 23:20:30,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2020-10-14 23:20:30,177 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 21 [2020-10-14 23:20:30,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:30,177 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2020-10-14 23:20:30,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 23:20:30,177 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2020-10-14 23:20:30,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-14 23:20:30,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:30,179 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] [2020-10-14 23:20:30,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 23:20:30,179 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:30,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:30,180 INFO L82 PathProgramCache]: Analyzing trace with hash -648846271, now seen corresponding path program 1 times [2020-10-14 23:20:30,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:30,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [277466330] [2020-10-14 23:20:30,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:30,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:30,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:30,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 23:20:30,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:30,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 23:20:30,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:30,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:30,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 23:20:30,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:30,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 23:20:30,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:30,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:30,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:30,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:30,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:30,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:30,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:20:30,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:30,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:30,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:30,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:30,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:30,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:30,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:30,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [277466330] [2020-10-14 23:20:30,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:30,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 23:20:30,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345127791] [2020-10-14 23:20:30,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 23:20:30,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:30,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 23:20:30,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:20:30,461 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 7 states. [2020-10-14 23:20:30,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:30,714 INFO L93 Difference]: Finished difference Result 140 states and 155 transitions. [2020-10-14 23:20:30,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 23:20:30,715 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-14 23:20:30,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:30,716 INFO L225 Difference]: With dead ends: 140 [2020-10-14 23:20:30,717 INFO L226 Difference]: Without dead ends: 138 [2020-10-14 23:20:30,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 23:20:30,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-14 23:20:30,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 89. [2020-10-14 23:20:30,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-14 23:20:30,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 100 transitions. [2020-10-14 23:20:30,728 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 100 transitions. Word has length 23 [2020-10-14 23:20:30,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:30,729 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 100 transitions. [2020-10-14 23:20:30,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 23:20:30,729 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 100 transitions. [2020-10-14 23:20:30,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-14 23:20:30,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:30,730 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] [2020-10-14 23:20:30,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 23:20:30,731 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:30,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:30,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1678311806, now seen corresponding path program 1 times [2020-10-14 23:20:30,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:30,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [371448300] [2020-10-14 23:20:30,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:30,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:30,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:30,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:30,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:30,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 23:20:30,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 23:20:30,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-14 23:20:30,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:30,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:30,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 23:20:30,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:30,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 23:20:30,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:31,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:31,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:31,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:31,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:31,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:31,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:31,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:20:31,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:31,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:31,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:31,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:31,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:31,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:31,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:31,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [371448300] [2020-10-14 23:20:31,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:31,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 23:20:31,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893690059] [2020-10-14 23:20:31,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 23:20:31,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:31,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 23:20:31,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:20:31,081 INFO L87 Difference]: Start difference. First operand 89 states and 100 transitions. Second operand 7 states. [2020-10-14 23:20:31,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:31,316 INFO L93 Difference]: Finished difference Result 138 states and 153 transitions. [2020-10-14 23:20:31,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 23:20:31,316 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-10-14 23:20:31,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:31,318 INFO L225 Difference]: With dead ends: 138 [2020-10-14 23:20:31,318 INFO L226 Difference]: Without dead ends: 136 [2020-10-14 23:20:31,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 23:20:31,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-14 23:20:31,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 95. [2020-10-14 23:20:31,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-10-14 23:20:31,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 107 transitions. [2020-10-14 23:20:31,328 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 107 transitions. Word has length 24 [2020-10-14 23:20:31,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:31,329 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 107 transitions. [2020-10-14 23:20:31,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 23:20:31,329 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 107 transitions. [2020-10-14 23:20:31,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-14 23:20:31,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:31,330 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] [2020-10-14 23:20:31,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 23:20:31,331 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:31,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:31,331 INFO L82 PathProgramCache]: Analyzing trace with hash 133467485, now seen corresponding path program 1 times [2020-10-14 23:20:31,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:31,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57523878] [2020-10-14 23:20:31,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:31,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:31,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:31,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:31,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:31,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 23:20:31,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 23:20:31,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-14 23:20:31,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:31,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:31,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 23:20:31,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:31,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 23:20:31,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:31,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:31,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:31,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:31,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:31,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:31,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:31,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:20:31,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:31,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:31,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:31,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:31,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:31,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:31,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:31,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57523878] [2020-10-14 23:20:31,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:31,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 23:20:31,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320325090] [2020-10-14 23:20:31,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 23:20:31,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:31,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 23:20:31,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:20:31,571 INFO L87 Difference]: Start difference. First operand 95 states and 107 transitions. Second operand 7 states. [2020-10-14 23:20:31,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:31,900 INFO L93 Difference]: Finished difference Result 136 states and 151 transitions. [2020-10-14 23:20:31,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 23:20:31,901 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2020-10-14 23:20:31,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:31,902 INFO L225 Difference]: With dead ends: 136 [2020-10-14 23:20:31,902 INFO L226 Difference]: Without dead ends: 134 [2020-10-14 23:20:31,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 23:20:31,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-14 23:20:31,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 104. [2020-10-14 23:20:31,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-14 23:20:31,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2020-10-14 23:20:31,912 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 25 [2020-10-14 23:20:31,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:31,913 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2020-10-14 23:20:31,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 23:20:31,913 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2020-10-14 23:20:31,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-14 23:20:31,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:31,915 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] [2020-10-14 23:20:31,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 23:20:31,916 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:31,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:31,916 INFO L82 PathProgramCache]: Analyzing trace with hash 876787366, now seen corresponding path program 1 times [2020-10-14 23:20:31,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:31,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [708109303] [2020-10-14 23:20:31,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:31,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:31,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:32,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:32,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 23:20:32,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:20:32,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 23:20:32,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:32,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:32,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:20:32,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 23:20:32,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 23:20:32,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:32,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:32,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:32,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:32,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:32,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:32,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:32,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:20:32,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:32,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:32,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:32,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:32,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:32,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:32,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:32,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [708109303] [2020-10-14 23:20:32,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:20:32,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 23:20:32,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261397631] [2020-10-14 23:20:32,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 23:20:32,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:32,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 23:20:32,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 23:20:32,079 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand 4 states. [2020-10-14 23:20:32,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:32,272 INFO L93 Difference]: Finished difference Result 198 states and 231 transitions. [2020-10-14 23:20:32,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 23:20:32,272 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-10-14 23:20:32,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:32,274 INFO L225 Difference]: With dead ends: 198 [2020-10-14 23:20:32,274 INFO L226 Difference]: Without dead ends: 117 [2020-10-14 23:20:32,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 23:20:32,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-14 23:20:32,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 102. [2020-10-14 23:20:32,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-14 23:20:32,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 113 transitions. [2020-10-14 23:20:32,282 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 113 transitions. Word has length 27 [2020-10-14 23:20:32,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:32,283 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 113 transitions. [2020-10-14 23:20:32,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 23:20:32,283 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 113 transitions. [2020-10-14 23:20:32,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-14 23:20:32,284 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:32,284 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:32,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 23:20:32,285 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:32,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:32,285 INFO L82 PathProgramCache]: Analyzing trace with hash -795743119, now seen corresponding path program 1 times [2020-10-14 23:20:32,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:32,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1558723731] [2020-10-14 23:20:32,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:32,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:32,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:32,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:32,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 23:20:32,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:20:32,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 423 [2020-10-14 23:20:32,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:32,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:32,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 23:20:32,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:32,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 23:20:32,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:32,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:32,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:32,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:32,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:32,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:32,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:20:32,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:32,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:32,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:32,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:32,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:32,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:32,913 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:32,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1558723731] [2020-10-14 23:20:32,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:32,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 23:20:32,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791115121] [2020-10-14 23:20:32,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 23:20:32,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:32,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 23:20:32,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-14 23:20:32,924 INFO L87 Difference]: Start difference. First operand 102 states and 113 transitions. Second operand 8 states. [2020-10-14 23:20:33,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:33,227 INFO L93 Difference]: Finished difference Result 102 states and 113 transitions. [2020-10-14 23:20:33,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 23:20:33,228 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2020-10-14 23:20:33,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:33,230 INFO L225 Difference]: With dead ends: 102 [2020-10-14 23:20:33,230 INFO L226 Difference]: Without dead ends: 100 [2020-10-14 23:20:33,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:20:33,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-14 23:20:33,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 87. [2020-10-14 23:20:33,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-14 23:20:33,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 97 transitions. [2020-10-14 23:20:33,245 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 97 transitions. Word has length 31 [2020-10-14 23:20:33,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:33,245 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 97 transitions. [2020-10-14 23:20:33,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 23:20:33,245 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 97 transitions. [2020-10-14 23:20:33,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-14 23:20:33,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:33,249 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:33,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 23:20:33,250 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:33,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:33,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1419476814, now seen corresponding path program 1 times [2020-10-14 23:20:33,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:33,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2058656402] [2020-10-14 23:20:33,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:33,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:33,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:33,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:33,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 23:20:33,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:33,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-10-14 23:20:33,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:33,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:33,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 23:20:33,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:33,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 23:20:33,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:33,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:33,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:33,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:33,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:33,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:33,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:20:33,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:33,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:33,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:33,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:33,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:33,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:33,719 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:33,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2058656402] [2020-10-14 23:20:33,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:33,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 23:20:33,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695546247] [2020-10-14 23:20:33,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 23:20:33,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:33,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 23:20:33,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-14 23:20:33,722 INFO L87 Difference]: Start difference. First operand 87 states and 97 transitions. Second operand 8 states. [2020-10-14 23:20:33,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:33,966 INFO L93 Difference]: Finished difference Result 87 states and 97 transitions. [2020-10-14 23:20:33,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 23:20:33,967 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2020-10-14 23:20:33,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:33,968 INFO L225 Difference]: With dead ends: 87 [2020-10-14 23:20:33,968 INFO L226 Difference]: Without dead ends: 85 [2020-10-14 23:20:33,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:20:33,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-14 23:20:33,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-14 23:20:33,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-14 23:20:33,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 95 transitions. [2020-10-14 23:20:33,974 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 95 transitions. Word has length 32 [2020-10-14 23:20:33,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:33,974 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 95 transitions. [2020-10-14 23:20:33,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 23:20:33,975 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 95 transitions. [2020-10-14 23:20:33,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-14 23:20:33,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:33,976 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] [2020-10-14 23:20:33,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 23:20:33,976 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:33,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:33,977 INFO L82 PathProgramCache]: Analyzing trace with hash 922997175, now seen corresponding path program 1 times [2020-10-14 23:20:33,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:33,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [698042716] [2020-10-14 23:20:33,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:34,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:34,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:34,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 23:20:34,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:34,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-14 23:20:34,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:34,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:34,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:20:34,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:34,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 23:20:34,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:34,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:34,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:34,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:34,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:34,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:34,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:20:34,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:34,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:34,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:34,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:34,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:34,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:34,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:34,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [698042716] [2020-10-14 23:20:34,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:34,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 23:20:34,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643202621] [2020-10-14 23:20:34,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 23:20:34,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:34,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 23:20:34,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-14 23:20:34,263 INFO L87 Difference]: Start difference. First operand 85 states and 95 transitions. Second operand 8 states. [2020-10-14 23:20:34,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:34,611 INFO L93 Difference]: Finished difference Result 132 states and 147 transitions. [2020-10-14 23:20:34,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 23:20:34,611 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2020-10-14 23:20:34,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:34,613 INFO L225 Difference]: With dead ends: 132 [2020-10-14 23:20:34,613 INFO L226 Difference]: Without dead ends: 130 [2020-10-14 23:20:34,613 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-14 23:20:34,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-14 23:20:34,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 107. [2020-10-14 23:20:34,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-14 23:20:34,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 120 transitions. [2020-10-14 23:20:34,621 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 120 transitions. Word has length 33 [2020-10-14 23:20:34,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:34,622 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 120 transitions. [2020-10-14 23:20:34,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 23:20:34,622 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 120 transitions. [2020-10-14 23:20:34,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-14 23:20:34,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:34,623 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:34,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 23:20:34,624 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:34,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:34,624 INFO L82 PathProgramCache]: Analyzing trace with hash 699517325, now seen corresponding path program 1 times [2020-10-14 23:20:34,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:34,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540654578] [2020-10-14 23:20:34,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:34,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:34,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:34,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:35,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:35,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 23:20:35,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 23:20:35,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 471 [2020-10-14 23:20:35,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:35,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:35,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 23:20:35,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:35,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 23:20:35,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:35,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:35,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:35,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:35,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:35,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:35,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:20:35,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:35,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:35,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:35,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:35,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:35,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:35,208 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:35,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1540654578] [2020-10-14 23:20:35,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:35,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 23:20:35,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101044858] [2020-10-14 23:20:35,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 23:20:35,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:35,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 23:20:35,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-14 23:20:35,211 INFO L87 Difference]: Start difference. First operand 107 states and 120 transitions. Second operand 8 states. [2020-10-14 23:20:35,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:35,424 INFO L93 Difference]: Finished difference Result 107 states and 120 transitions. [2020-10-14 23:20:35,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 23:20:35,424 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2020-10-14 23:20:35,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:35,425 INFO L225 Difference]: With dead ends: 107 [2020-10-14 23:20:35,426 INFO L226 Difference]: Without dead ends: 105 [2020-10-14 23:20:35,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:20:35,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-14 23:20:35,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-10-14 23:20:35,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-14 23:20:35,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 118 transitions. [2020-10-14 23:20:35,434 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 118 transitions. Word has length 33 [2020-10-14 23:20:35,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:35,434 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 118 transitions. [2020-10-14 23:20:35,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 23:20:35,435 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 118 transitions. [2020-10-14 23:20:35,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-14 23:20:35,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:35,436 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:35,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 23:20:35,436 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:35,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:35,437 INFO L82 PathProgramCache]: Analyzing trace with hash -610162986, now seen corresponding path program 1 times [2020-10-14 23:20:35,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:35,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [290707215] [2020-10-14 23:20:35,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:35,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:35,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:35,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 23:20:35,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:35,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-10-14 23:20:35,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:35,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:35,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 23:20:35,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:35,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 23:20:35,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:35,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:35,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:35,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:35,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:35,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:35,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:20:35,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:35,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:35,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:35,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:35,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:35,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:35,896 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:35,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [290707215] [2020-10-14 23:20:35,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:35,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 23:20:35,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840873034] [2020-10-14 23:20:35,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 23:20:35,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:35,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 23:20:35,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 23:20:35,899 INFO L87 Difference]: Start difference. First operand 105 states and 118 transitions. Second operand 8 states. [2020-10-14 23:20:36,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:36,268 INFO L93 Difference]: Finished difference Result 170 states and 189 transitions. [2020-10-14 23:20:36,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 23:20:36,268 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2020-10-14 23:20:36,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:36,270 INFO L225 Difference]: With dead ends: 170 [2020-10-14 23:20:36,270 INFO L226 Difference]: Without dead ends: 168 [2020-10-14 23:20:36,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:20:36,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-10-14 23:20:36,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 124. [2020-10-14 23:20:36,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-14 23:20:36,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 140 transitions. [2020-10-14 23:20:36,279 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 140 transitions. Word has length 35 [2020-10-14 23:20:36,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:36,280 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 140 transitions. [2020-10-14 23:20:36,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 23:20:36,280 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 140 transitions. [2020-10-14 23:20:36,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-14 23:20:36,281 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:36,281 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:36,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 23:20:36,281 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:36,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:36,282 INFO L82 PathProgramCache]: Analyzing trace with hash -2040823409, now seen corresponding path program 1 times [2020-10-14 23:20:36,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:36,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [77274734] [2020-10-14 23:20:36,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:36,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:36,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:36,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:36,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 23:20:36,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:20:36,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343 [2020-10-14 23:20:36,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:36,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:36,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 23:20:36,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:36,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-14 23:20:36,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:36,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:36,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:36,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:36,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:36,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:36,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:20:36,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:36,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:36,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:36,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:36,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:36,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:36,874 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:36,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [77274734] [2020-10-14 23:20:36,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:36,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 23:20:36,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634209584] [2020-10-14 23:20:36,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 23:20:36,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:36,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 23:20:36,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 23:20:36,876 INFO L87 Difference]: Start difference. First operand 124 states and 140 transitions. Second operand 10 states. [2020-10-14 23:20:37,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:37,430 INFO L93 Difference]: Finished difference Result 187 states and 208 transitions. [2020-10-14 23:20:37,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 23:20:37,430 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 36 [2020-10-14 23:20:37,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:37,432 INFO L225 Difference]: With dead ends: 187 [2020-10-14 23:20:37,432 INFO L226 Difference]: Without dead ends: 185 [2020-10-14 23:20:37,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2020-10-14 23:20:37,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-10-14 23:20:37,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 140. [2020-10-14 23:20:37,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-14 23:20:37,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 160 transitions. [2020-10-14 23:20:37,443 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 160 transitions. Word has length 36 [2020-10-14 23:20:37,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:37,444 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 160 transitions. [2020-10-14 23:20:37,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 23:20:37,444 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 160 transitions. [2020-10-14 23:20:37,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-14 23:20:37,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:37,445 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:37,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 23:20:37,445 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:37,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:37,446 INFO L82 PathProgramCache]: Analyzing trace with hash 143436019, now seen corresponding path program 1 times [2020-10-14 23:20:37,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:37,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1864768619] [2020-10-14 23:20:37,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:37,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:37,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:37,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:37,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:37,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 23:20:37,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 23:20:37,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-10-14 23:20:37,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:37,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:37,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 23:20:37,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:37,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-14 23:20:37,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:37,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:37,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:37,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:37,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:37,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:37,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:20:37,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:37,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:37,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:37,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:37,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:37,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:37,876 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:37,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1864768619] [2020-10-14 23:20:37,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:37,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 23:20:37,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727885858] [2020-10-14 23:20:37,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 23:20:37,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:37,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 23:20:37,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 23:20:37,879 INFO L87 Difference]: Start difference. First operand 140 states and 160 transitions. Second operand 8 states. [2020-10-14 23:20:38,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:38,243 INFO L93 Difference]: Finished difference Result 173 states and 194 transitions. [2020-10-14 23:20:38,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 23:20:38,243 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2020-10-14 23:20:38,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:38,244 INFO L225 Difference]: With dead ends: 173 [2020-10-14 23:20:38,245 INFO L226 Difference]: Without dead ends: 171 [2020-10-14 23:20:38,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:20:38,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-14 23:20:38,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 140. [2020-10-14 23:20:38,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-14 23:20:38,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 159 transitions. [2020-10-14 23:20:38,255 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 159 transitions. Word has length 36 [2020-10-14 23:20:38,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:38,255 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 159 transitions. [2020-10-14 23:20:38,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 23:20:38,256 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 159 transitions. [2020-10-14 23:20:38,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-14 23:20:38,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:38,257 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:38,257 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 23:20:38,258 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:38,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:38,258 INFO L82 PathProgramCache]: Analyzing trace with hash -385872481, now seen corresponding path program 1 times [2020-10-14 23:20:38,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:38,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1218610978] [2020-10-14 23:20:38,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:38,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:38,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:38,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:38,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 23:20:38,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:20:38,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 23:20:38,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:38,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:38,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:20:38,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 23:20:38,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 23:20:38,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:38,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:38,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:38,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:38,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:38,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:38,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:20:38,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:38,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:38,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:38,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:38,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:38,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:38,462 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 23:20:38,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1218610978] [2020-10-14 23:20:38,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:20:38,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 23:20:38,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283828914] [2020-10-14 23:20:38,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 23:20:38,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:38,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 23:20:38,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 23:20:38,467 INFO L87 Difference]: Start difference. First operand 140 states and 159 transitions. Second operand 4 states. [2020-10-14 23:20:38,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:38,622 INFO L93 Difference]: Finished difference Result 260 states and 303 transitions. [2020-10-14 23:20:38,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 23:20:38,622 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2020-10-14 23:20:38,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:38,623 INFO L225 Difference]: With dead ends: 260 [2020-10-14 23:20:38,624 INFO L226 Difference]: Without dead ends: 158 [2020-10-14 23:20:38,625 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 23:20:38,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-14 23:20:38,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 138. [2020-10-14 23:20:38,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-14 23:20:38,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 153 transitions. [2020-10-14 23:20:38,635 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 153 transitions. Word has length 39 [2020-10-14 23:20:38,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:38,635 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 153 transitions. [2020-10-14 23:20:38,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 23:20:38,636 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 153 transitions. [2020-10-14 23:20:38,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-14 23:20:38,636 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:38,636 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 23:20:38,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 23:20:38,637 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:38,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:38,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1026206209, now seen corresponding path program 1 times [2020-10-14 23:20:38,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:38,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219090088] [2020-10-14 23:20:38,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:38,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:38,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:38,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:38,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:38,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:39,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:39,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:39,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:39,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 23:20:39,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 23:20:39,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 765 [2020-10-14 23:20:39,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:39,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:39,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 23:20:39,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:39,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 23:20:39,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:39,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:39,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:39,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:39,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:39,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:39,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:20:39,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:39,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:39,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:39,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:39,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:39,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:39,522 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:39,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1219090088] [2020-10-14 23:20:39,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:39,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 23:20:39,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024984457] [2020-10-14 23:20:39,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 23:20:39,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:39,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 23:20:39,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:20:39,524 INFO L87 Difference]: Start difference. First operand 138 states and 153 transitions. Second operand 9 states. [2020-10-14 23:20:39,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:39,871 INFO L93 Difference]: Finished difference Result 167 states and 188 transitions. [2020-10-14 23:20:39,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 23:20:39,872 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2020-10-14 23:20:39,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:39,873 INFO L225 Difference]: With dead ends: 167 [2020-10-14 23:20:39,873 INFO L226 Difference]: Without dead ends: 129 [2020-10-14 23:20:39,874 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-14 23:20:39,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-10-14 23:20:39,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2020-10-14 23:20:39,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-14 23:20:39,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 141 transitions. [2020-10-14 23:20:39,881 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 141 transitions. Word has length 41 [2020-10-14 23:20:39,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:39,881 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 141 transitions. [2020-10-14 23:20:39,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 23:20:39,881 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 141 transitions. [2020-10-14 23:20:39,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-14 23:20:39,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:39,882 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:39,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 23:20:39,882 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:39,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:39,883 INFO L82 PathProgramCache]: Analyzing trace with hash 410027869, now seen corresponding path program 1 times [2020-10-14 23:20:39,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:39,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [685047969] [2020-10-14 23:20:39,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:39,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:39,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:40,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:40,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 23:20:40,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:20:40,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 596 [2020-10-14 23:20:40,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:40,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:40,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 23:20:40,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:40,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 23:20:40,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:40,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:40,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:40,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:40,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:40,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:40,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:20:40,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:40,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:40,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:40,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:40,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:40,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:40,683 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:40,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [685047969] [2020-10-14 23:20:40,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:40,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 23:20:40,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753804533] [2020-10-14 23:20:40,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 23:20:40,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:40,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 23:20:40,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:20:40,686 INFO L87 Difference]: Start difference. First operand 129 states and 141 transitions. Second operand 9 states. [2020-10-14 23:20:41,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:41,104 INFO L93 Difference]: Finished difference Result 129 states and 141 transitions. [2020-10-14 23:20:41,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 23:20:41,105 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 44 [2020-10-14 23:20:41,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:41,106 INFO L225 Difference]: With dead ends: 129 [2020-10-14 23:20:41,106 INFO L226 Difference]: Without dead ends: 127 [2020-10-14 23:20:41,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-14 23:20:41,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-14 23:20:41,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2020-10-14 23:20:41,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-14 23:20:41,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 139 transitions. [2020-10-14 23:20:41,117 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 139 transitions. Word has length 44 [2020-10-14 23:20:41,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:41,117 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 139 transitions. [2020-10-14 23:20:41,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 23:20:41,118 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 139 transitions. [2020-10-14 23:20:41,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-14 23:20:41,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:41,119 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:41,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 23:20:41,119 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:41,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:41,120 INFO L82 PathProgramCache]: Analyzing trace with hash -479677976, now seen corresponding path program 1 times [2020-10-14 23:20:41,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:41,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [460134580] [2020-10-14 23:20:41,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:41,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:41,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:41,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:41,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 23:20:41,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:20:41,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 703 [2020-10-14 23:20:41,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:41,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:41,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 23:20:41,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:41,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 23:20:41,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:42,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:42,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:42,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:42,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:42,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:42,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:20:42,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:42,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:42,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:42,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:42,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:42,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:42,225 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:42,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [460134580] [2020-10-14 23:20:42,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:42,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 23:20:42,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698212022] [2020-10-14 23:20:42,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 23:20:42,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:42,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 23:20:42,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-14 23:20:42,228 INFO L87 Difference]: Start difference. First operand 127 states and 139 transitions. Second operand 11 states. [2020-10-14 23:20:42,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:42,921 INFO L93 Difference]: Finished difference Result 146 states and 159 transitions. [2020-10-14 23:20:42,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 23:20:42,921 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 45 [2020-10-14 23:20:42,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:42,923 INFO L225 Difference]: With dead ends: 146 [2020-10-14 23:20:42,923 INFO L226 Difference]: Without dead ends: 144 [2020-10-14 23:20:42,924 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2020-10-14 23:20:42,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-14 23:20:42,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 105. [2020-10-14 23:20:42,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-14 23:20:42,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 116 transitions. [2020-10-14 23:20:42,932 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 116 transitions. Word has length 45 [2020-10-14 23:20:42,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:42,932 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 116 transitions. [2020-10-14 23:20:42,932 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 23:20:42,932 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 116 transitions. [2020-10-14 23:20:42,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-14 23:20:42,933 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:42,933 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:42,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 23:20:42,933 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:42,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:42,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1704581452, now seen corresponding path program 1 times [2020-10-14 23:20:42,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:42,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1084644725] [2020-10-14 23:20:42,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:42,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:43,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:43,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 23:20:43,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:43,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 389 [2020-10-14 23:20:43,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:43,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:43,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 23:20:43,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:43,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 23:20:43,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:43,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:43,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:43,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:43,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:43,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:43,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:20:43,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:43,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:43,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:43,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:43,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:43,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:43,539 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:43,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1084644725] [2020-10-14 23:20:43,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:43,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 23:20:43,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122046795] [2020-10-14 23:20:43,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 23:20:43,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:43,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 23:20:43,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:20:43,542 INFO L87 Difference]: Start difference. First operand 105 states and 116 transitions. Second operand 9 states. [2020-10-14 23:20:43,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:43,836 INFO L93 Difference]: Finished difference Result 105 states and 116 transitions. [2020-10-14 23:20:43,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 23:20:43,837 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2020-10-14 23:20:43,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:43,838 INFO L225 Difference]: With dead ends: 105 [2020-10-14 23:20:43,838 INFO L226 Difference]: Without dead ends: 103 [2020-10-14 23:20:43,838 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-14 23:20:43,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-10-14 23:20:43,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2020-10-14 23:20:43,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-14 23:20:43,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 114 transitions. [2020-10-14 23:20:43,845 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 114 transitions. Word has length 45 [2020-10-14 23:20:43,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:43,845 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 114 transitions. [2020-10-14 23:20:43,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 23:20:43,846 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 114 transitions. [2020-10-14 23:20:43,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-14 23:20:43,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:43,846 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:43,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 23:20:43,847 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:43,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:43,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1791840934, now seen corresponding path program 1 times [2020-10-14 23:20:43,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:43,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1162423696] [2020-10-14 23:20:43,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:43,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:44,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:44,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 23:20:44,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:44,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-10-14 23:20:44,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:44,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:44,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 23:20:44,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:44,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 23:20:44,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:44,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:44,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:44,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:44,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:44,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:44,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:20:44,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:44,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:44,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:44,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:44,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:44,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:44,422 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:44,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1162423696] [2020-10-14 23:20:44,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:44,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 23:20:44,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913908202] [2020-10-14 23:20:44,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 23:20:44,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:44,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 23:20:44,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:20:44,424 INFO L87 Difference]: Start difference. First operand 103 states and 114 transitions. Second operand 9 states. [2020-10-14 23:20:44,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:44,855 INFO L93 Difference]: Finished difference Result 189 states and 207 transitions. [2020-10-14 23:20:44,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 23:20:44,856 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2020-10-14 23:20:44,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:44,857 INFO L225 Difference]: With dead ends: 189 [2020-10-14 23:20:44,857 INFO L226 Difference]: Without dead ends: 187 [2020-10-14 23:20:44,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 23:20:44,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-10-14 23:20:44,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 135. [2020-10-14 23:20:44,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-10-14 23:20:44,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 151 transitions. [2020-10-14 23:20:44,867 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 151 transitions. Word has length 48 [2020-10-14 23:20:44,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:44,867 INFO L479 AbstractCegarLoop]: Abstraction has 135 states and 151 transitions. [2020-10-14 23:20:44,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 23:20:44,867 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 151 transitions. [2020-10-14 23:20:44,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-14 23:20:44,868 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:44,868 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:44,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 23:20:44,868 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:44,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:44,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1411094306, now seen corresponding path program 1 times [2020-10-14 23:20:44,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:44,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573300013] [2020-10-14 23:20:44,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:44,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:45,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:45,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 23:20:45,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:45,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451 [2020-10-14 23:20:45,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:45,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:45,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 23:20:45,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:45,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 23:20:45,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:45,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:45,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:45,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:45,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:45,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:45,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:20:45,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:45,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:45,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:45,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:45,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:45,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:45,727 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:45,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [573300013] [2020-10-14 23:20:45,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:45,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 23:20:45,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044336217] [2020-10-14 23:20:45,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 23:20:45,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:45,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 23:20:45,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:20:45,729 INFO L87 Difference]: Start difference. First operand 135 states and 151 transitions. Second operand 9 states. [2020-10-14 23:20:46,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:46,284 INFO L93 Difference]: Finished difference Result 187 states and 205 transitions. [2020-10-14 23:20:46,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 23:20:46,284 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-10-14 23:20:46,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:46,286 INFO L225 Difference]: With dead ends: 187 [2020-10-14 23:20:46,286 INFO L226 Difference]: Without dead ends: 185 [2020-10-14 23:20:46,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-14 23:20:46,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-10-14 23:20:46,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 138. [2020-10-14 23:20:46,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-14 23:20:46,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 154 transitions. [2020-10-14 23:20:46,297 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 154 transitions. Word has length 51 [2020-10-14 23:20:46,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:46,297 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 154 transitions. [2020-10-14 23:20:46,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 23:20:46,298 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 154 transitions. [2020-10-14 23:20:46,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-14 23:20:46,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:46,299 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:46,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 23:20:46,299 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:46,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:46,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1520066597, now seen corresponding path program 1 times [2020-10-14 23:20:46,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:46,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [216242549] [2020-10-14 23:20:46,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:46,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:46,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:46,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:46,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:46,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:46,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:46,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:47,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:47,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 23:20:47,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 23:20:47,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 945 [2020-10-14 23:20:47,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:47,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:47,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 23:20:47,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:47,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 23:20:47,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:47,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:47,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:47,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:47,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:47,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:47,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:47,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:20:47,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:47,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:47,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:47,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:47,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:47,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:47,434 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:47,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [216242549] [2020-10-14 23:20:47,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:47,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 23:20:47,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780317375] [2020-10-14 23:20:47,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 23:20:47,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:47,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 23:20:47,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-14 23:20:47,436 INFO L87 Difference]: Start difference. First operand 138 states and 154 transitions. Second operand 10 states. [2020-10-14 23:20:47,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:47,951 INFO L93 Difference]: Finished difference Result 194 states and 213 transitions. [2020-10-14 23:20:47,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 23:20:47,952 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2020-10-14 23:20:47,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:47,953 INFO L225 Difference]: With dead ends: 194 [2020-10-14 23:20:47,953 INFO L226 Difference]: Without dead ends: 192 [2020-10-14 23:20:47,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-10-14 23:20:47,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-14 23:20:47,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 160. [2020-10-14 23:20:47,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-10-14 23:20:47,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 177 transitions. [2020-10-14 23:20:47,971 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 177 transitions. Word has length 52 [2020-10-14 23:20:47,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:47,971 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 177 transitions. [2020-10-14 23:20:47,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 23:20:47,972 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 177 transitions. [2020-10-14 23:20:47,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-14 23:20:47,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:47,973 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:47,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 23:20:47,973 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:47,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:47,973 INFO L82 PathProgramCache]: Analyzing trace with hash -2016884430, now seen corresponding path program 1 times [2020-10-14 23:20:47,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:47,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1115763561] [2020-10-14 23:20:47,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:47,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:48,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:48,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:48,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:48,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:48,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:49,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:49,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 23:20:49,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 23:20:49,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1264 [2020-10-14 23:20:49,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:49,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:49,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 23:20:49,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:49,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 23:20:49,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:49,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:49,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:49,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:49,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:49,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:49,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:20:49,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:49,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:49,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:49,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:49,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:49,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:49,509 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:49,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1115763561] [2020-10-14 23:20:49,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:49,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 23:20:49,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29634571] [2020-10-14 23:20:49,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 23:20:49,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:49,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 23:20:49,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-14 23:20:49,512 INFO L87 Difference]: Start difference. First operand 160 states and 177 transitions. Second operand 12 states. [2020-10-14 23:20:50,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:50,242 INFO L93 Difference]: Finished difference Result 225 states and 246 transitions. [2020-10-14 23:20:50,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 23:20:50,242 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2020-10-14 23:20:50,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:50,244 INFO L225 Difference]: With dead ends: 225 [2020-10-14 23:20:50,244 INFO L226 Difference]: Without dead ends: 223 [2020-10-14 23:20:50,244 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2020-10-14 23:20:50,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2020-10-14 23:20:50,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 167. [2020-10-14 23:20:50,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-10-14 23:20:50,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 184 transitions. [2020-10-14 23:20:50,256 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 184 transitions. Word has length 53 [2020-10-14 23:20:50,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:50,256 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 184 transitions. [2020-10-14 23:20:50,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 23:20:50,256 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 184 transitions. [2020-10-14 23:20:50,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-14 23:20:50,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:50,263 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:50,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 23:20:50,263 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:50,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:50,264 INFO L82 PathProgramCache]: Analyzing trace with hash 421512575, now seen corresponding path program 2 times [2020-10-14 23:20:50,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:50,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230431868] [2020-10-14 23:20:50,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:50,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:51,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:51,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-14 23:20:51,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:51,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 764 [2020-10-14 23:20:51,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:51,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:51,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 23:20:51,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:51,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 23:20:51,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:51,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:51,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:51,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:51,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:51,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:51,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:20:51,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:51,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:51,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:51,361 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:51,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230431868] [2020-10-14 23:20:51,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:51,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 23:20:51,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615974252] [2020-10-14 23:20:51,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 23:20:51,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:51,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 23:20:51,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-14 23:20:51,363 INFO L87 Difference]: Start difference. First operand 167 states and 184 transitions. Second operand 10 states. [2020-10-14 23:20:51,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:51,887 INFO L93 Difference]: Finished difference Result 201 states and 221 transitions. [2020-10-14 23:20:51,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 23:20:51,888 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2020-10-14 23:20:51,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:51,889 INFO L225 Difference]: With dead ends: 201 [2020-10-14 23:20:51,889 INFO L226 Difference]: Without dead ends: 199 [2020-10-14 23:20:51,890 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-14 23:20:51,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-10-14 23:20:51,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 165. [2020-10-14 23:20:51,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-10-14 23:20:51,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 182 transitions. [2020-10-14 23:20:51,900 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 182 transitions. Word has length 57 [2020-10-14 23:20:51,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:51,900 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 182 transitions. [2020-10-14 23:20:51,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 23:20:51,900 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 182 transitions. [2020-10-14 23:20:51,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-14 23:20:51,901 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:51,901 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:51,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 23:20:51,901 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:51,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:51,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1518463963, now seen corresponding path program 2 times [2020-10-14 23:20:51,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:51,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1939837356] [2020-10-14 23:20:51,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:51,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:51,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:51,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:52,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:52,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:52,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:52,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:52,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:52,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:52,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:52,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:52,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:52,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:53,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:53,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-14 23:20:53,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 23:20:53,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1691 [2020-10-14 23:20:53,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:53,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:53,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 23:20:53,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:53,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-14 23:20:53,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:53,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:53,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:53,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:53,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:53,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:53,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:20:53,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:53,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:53,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:53,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:53,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:53,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:20:53,842 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:53,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1939837356] [2020-10-14 23:20:53,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:53,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 23:20:53,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978326859] [2020-10-14 23:20:53,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 23:20:53,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:53,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 23:20:53,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-14 23:20:53,844 INFO L87 Difference]: Start difference. First operand 165 states and 182 transitions. Second operand 11 states. [2020-10-14 23:20:54,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:54,585 INFO L93 Difference]: Finished difference Result 204 states and 224 transitions. [2020-10-14 23:20:54,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 23:20:54,586 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 60 [2020-10-14 23:20:54,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:54,587 INFO L225 Difference]: With dead ends: 204 [2020-10-14 23:20:54,587 INFO L226 Difference]: Without dead ends: 161 [2020-10-14 23:20:54,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2020-10-14 23:20:54,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-10-14 23:20:54,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2020-10-14 23:20:54,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-10-14 23:20:54,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 177 transitions. [2020-10-14 23:20:54,598 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 177 transitions. Word has length 60 [2020-10-14 23:20:54,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:54,598 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 177 transitions. [2020-10-14 23:20:54,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 23:20:54,598 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 177 transitions. [2020-10-14 23:20:54,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-14 23:20:54,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:54,599 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:54,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 23:20:54,600 INFO L427 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:54,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:54,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1199088795, now seen corresponding path program 2 times [2020-10-14 23:20:54,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:54,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1322575750] [2020-10-14 23:20:54,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:54,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:55,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:55,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-14 23:20:55,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:55,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 881 [2020-10-14 23:20:55,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:55,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:55,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 23:20:55,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:55,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 23:20:55,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:56,029 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2020-10-14 23:20:56,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:20:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:56,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:56,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:56,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:20:56,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:20:56,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:20:56,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:56,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:56,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:20:56,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:20:56,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:20:56,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:20:56,228 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:20:56,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1322575750] [2020-10-14 23:20:56,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:20:56,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 23:20:56,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179915284] [2020-10-14 23:20:56,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 23:20:56,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:20:56,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 23:20:56,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-14 23:20:56,230 INFO L87 Difference]: Start difference. First operand 161 states and 177 transitions. Second operand 11 states. [2020-10-14 23:20:57,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:20:57,030 INFO L93 Difference]: Finished difference Result 258 states and 285 transitions. [2020-10-14 23:20:57,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 23:20:57,031 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 60 [2020-10-14 23:20:57,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:20:57,033 INFO L225 Difference]: With dead ends: 258 [2020-10-14 23:20:57,033 INFO L226 Difference]: Without dead ends: 256 [2020-10-14 23:20:57,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-10-14 23:20:57,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-10-14 23:20:57,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 188. [2020-10-14 23:20:57,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-14 23:20:57,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 211 transitions. [2020-10-14 23:20:57,048 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 211 transitions. Word has length 60 [2020-10-14 23:20:57,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:20:57,048 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 211 transitions. [2020-10-14 23:20:57,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 23:20:57,049 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 211 transitions. [2020-10-14 23:20:57,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-14 23:20:57,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:20:57,050 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:20:57,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-14 23:20:57,050 INFO L427 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:20:57,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:20:57,050 INFO L82 PathProgramCache]: Analyzing trace with hash -840305028, now seen corresponding path program 2 times [2020-10-14 23:20:57,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:20:57,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330823217] [2020-10-14 23:20:57,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:20:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:20:57,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:57,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:57,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:57,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:57,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:57,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:57,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:57,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:57,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:58,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:20:59,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:20:59,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-14 23:20:59,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 23:20:59,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2672 [2020-10-14 23:20:59,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:20:59,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:20:59,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 23:20:59,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:20:59,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 23:20:59,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:21:00,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:21:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:00,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:00,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:00,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:21:00,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:21:00,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:21:00,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:00,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:00,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:21:00,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:21:00,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:21:00,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:21:00,166 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:21:00,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330823217] [2020-10-14 23:21:00,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:21:00,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 23:21:00,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112206277] [2020-10-14 23:21:00,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 23:21:00,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:21:00,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 23:21:00,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-10-14 23:21:00,168 INFO L87 Difference]: Start difference. First operand 188 states and 211 transitions. Second operand 12 states. [2020-10-14 23:21:01,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:21:01,263 INFO L93 Difference]: Finished difference Result 221 states and 247 transitions. [2020-10-14 23:21:01,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 23:21:01,263 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 61 [2020-10-14 23:21:01,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:21:01,265 INFO L225 Difference]: With dead ends: 221 [2020-10-14 23:21:01,265 INFO L226 Difference]: Without dead ends: 219 [2020-10-14 23:21:01,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2020-10-14 23:21:01,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-10-14 23:21:01,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 196. [2020-10-14 23:21:01,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-10-14 23:21:01,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 220 transitions. [2020-10-14 23:21:01,281 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 220 transitions. Word has length 61 [2020-10-14 23:21:01,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:21:01,282 INFO L479 AbstractCegarLoop]: Abstraction has 196 states and 220 transitions. [2020-10-14 23:21:01,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 23:21:01,282 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 220 transitions. [2020-10-14 23:21:01,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-14 23:21:01,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:21:01,283 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 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] [2020-10-14 23:21:01,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-14 23:21:01,283 INFO L427 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:21:01,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:21:01,284 INFO L82 PathProgramCache]: Analyzing trace with hash -143051271, now seen corresponding path program 3 times [2020-10-14 23:21:01,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:21:01,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2014812394] [2020-10-14 23:21:01,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:21:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:01,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:01,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:01,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:01,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:02,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:02,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:03,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:03,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 23:21:03,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 23:21:03,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1806 [2020-10-14 23:21:03,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:03,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:03,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 23:21:03,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:21:03,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 23:21:03,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:21:03,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:21:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:03,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:03,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:03,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:21:03,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:21:03,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:21:03,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:03,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:03,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:21:03,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:21:03,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:21:03,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:21:03,735 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:21:03,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2014812394] [2020-10-14 23:21:03,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:21:03,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 23:21:03,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744442357] [2020-10-14 23:21:03,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 23:21:03,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:21:03,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 23:21:03,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-10-14 23:21:03,738 INFO L87 Difference]: Start difference. First operand 196 states and 220 transitions. Second operand 13 states. [2020-10-14 23:21:04,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:21:04,758 INFO L93 Difference]: Finished difference Result 228 states and 254 transitions. [2020-10-14 23:21:04,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 23:21:04,758 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 62 [2020-10-14 23:21:04,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:21:04,760 INFO L225 Difference]: With dead ends: 228 [2020-10-14 23:21:04,760 INFO L226 Difference]: Without dead ends: 226 [2020-10-14 23:21:04,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2020-10-14 23:21:04,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-14 23:21:04,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 196. [2020-10-14 23:21:04,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-10-14 23:21:04,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 220 transitions. [2020-10-14 23:21:04,775 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 220 transitions. Word has length 62 [2020-10-14 23:21:04,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:21:04,776 INFO L479 AbstractCegarLoop]: Abstraction has 196 states and 220 transitions. [2020-10-14 23:21:04,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 23:21:04,776 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 220 transitions. [2020-10-14 23:21:04,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 23:21:04,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:21:04,777 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 4, 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] [2020-10-14 23:21:04,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-14 23:21:04,777 INFO L427 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:21:04,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:21:04,778 INFO L82 PathProgramCache]: Analyzing trace with hash -701938539, now seen corresponding path program 3 times [2020-10-14 23:21:04,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:21:04,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1618693113] [2020-10-14 23:21:04,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:21:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:04,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:04,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:04,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 23:21:04,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:21:04,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 23:21:04,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:04,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:04,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:21:04,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-14 23:21:04,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 23:21:04,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:21:04,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:21:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:04,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:04,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:04,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:21:04,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:21:04,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:21:04,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:04,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:04,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:21:04,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:21:04,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:21:04,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:21:04,945 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-14 23:21:04,945 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1618693113] [2020-10-14 23:21:04,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:21:04,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 23:21:04,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062053598] [2020-10-14 23:21:04,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 23:21:04,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:21:04,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 23:21:04,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 23:21:04,947 INFO L87 Difference]: Start difference. First operand 196 states and 220 transitions. Second operand 4 states. [2020-10-14 23:21:05,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:21:05,075 INFO L93 Difference]: Finished difference Result 284 states and 323 transitions. [2020-10-14 23:21:05,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 23:21:05,076 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 68 [2020-10-14 23:21:05,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:21:05,077 INFO L225 Difference]: With dead ends: 284 [2020-10-14 23:21:05,077 INFO L226 Difference]: Without dead ends: 142 [2020-10-14 23:21:05,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 23:21:05,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-10-14 23:21:05,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2020-10-14 23:21:05,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-10-14 23:21:05,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 152 transitions. [2020-10-14 23:21:05,088 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 152 transitions. Word has length 68 [2020-10-14 23:21:05,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:21:05,088 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 152 transitions. [2020-10-14 23:21:05,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 23:21:05,089 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 152 transitions. [2020-10-14 23:21:05,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-14 23:21:05,089 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:21:05,090 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:21:05,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-14 23:21:05,090 INFO L427 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:21:05,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:21:05,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1180056006, now seen corresponding path program 4 times [2020-10-14 23:21:05,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:21:05,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1981438046] [2020-10-14 23:21:05,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:21:05,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:05,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:05,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:05,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:05,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:05,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:05,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:05,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:06,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:06,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:07,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:07,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:07,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:07,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:07,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:10,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:10,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 23:21:10,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 23:21:10,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 23:21:10,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:10,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:10,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 23:21:10,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:21:10,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 23:21:10,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 23:21:10,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:21:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:10,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:10,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:10,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:21:10,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:21:10,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:21:10,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:10,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:10,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:21:10,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:21:10,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:21:10,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:21:10,433 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 12 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:21:10,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1981438046] [2020-10-14 23:21:10,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:21:10,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 23:21:10,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908257878] [2020-10-14 23:21:10,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 23:21:10,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:21:10,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 23:21:10,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-14 23:21:10,438 INFO L87 Difference]: Start difference. First operand 142 states and 152 transitions. Second operand 13 states. [2020-10-14 23:21:11,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:21:11,248 INFO L93 Difference]: Finished difference Result 171 states and 184 transitions. [2020-10-14 23:21:11,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 23:21:11,248 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 69 [2020-10-14 23:21:11,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:21:11,249 INFO L225 Difference]: With dead ends: 171 [2020-10-14 23:21:11,249 INFO L226 Difference]: Without dead ends: 114 [2020-10-14 23:21:11,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2020-10-14 23:21:11,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-10-14 23:21:11,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-10-14 23:21:11,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-14 23:21:11,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 121 transitions. [2020-10-14 23:21:11,258 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 121 transitions. Word has length 69 [2020-10-14 23:21:11,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:21:11,259 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 121 transitions. [2020-10-14 23:21:11,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 23:21:11,259 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 121 transitions. [2020-10-14 23:21:11,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-14 23:21:11,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:21:11,260 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:21:11,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-14 23:21:11,261 INFO L427 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:21:11,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:21:11,261 INFO L82 PathProgramCache]: Analyzing trace with hash 30363838, now seen corresponding path program 4 times [2020-10-14 23:21:11,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:21:11,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [174764194] [2020-10-14 23:21:11,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:21:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:11,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:12,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:12,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 23:21:12,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:21:12,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 817 [2020-10-14 23:21:12,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:12,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:12,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 23:21:12,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:21:12,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 23:21:12,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:21:12,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:21:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:12,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:12,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:12,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:21:12,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:21:12,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:21:12,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:12,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:12,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:21:12,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:21:12,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:21:12,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:21:12,668 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:21:12,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [174764194] [2020-10-14 23:21:12,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:21:12,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 23:21:12,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844503430] [2020-10-14 23:21:12,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 23:21:12,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:21:12,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 23:21:12,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-14 23:21:12,670 INFO L87 Difference]: Start difference. First operand 114 states and 121 transitions. Second operand 12 states. [2020-10-14 23:21:13,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:21:13,238 INFO L93 Difference]: Finished difference Result 114 states and 121 transitions. [2020-10-14 23:21:13,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 23:21:13,239 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 69 [2020-10-14 23:21:13,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:21:13,240 INFO L225 Difference]: With dead ends: 114 [2020-10-14 23:21:13,241 INFO L226 Difference]: Without dead ends: 112 [2020-10-14 23:21:13,241 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-14 23:21:13,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-14 23:21:13,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 85. [2020-10-14 23:21:13,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-14 23:21:13,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2020-10-14 23:21:13,248 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 69 [2020-10-14 23:21:13,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:21:13,248 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 90 transitions. [2020-10-14 23:21:13,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 23:21:13,248 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 90 transitions. [2020-10-14 23:21:13,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-14 23:21:13,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:21:13,249 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:21:13,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-14 23:21:13,250 INFO L427 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:21:13,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:21:13,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1381979069, now seen corresponding path program 5 times [2020-10-14 23:21:13,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:21:13,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [495906800] [2020-10-14 23:21:13,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:21:13,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:13,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:13,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:13,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:13,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:13,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:13,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:14,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:14,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:14,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:14,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:15,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:15,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 23:21:15,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 23:21:15,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2326 [2020-10-14 23:21:15,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:15,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:15,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 23:21:15,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:21:15,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 23:21:15,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:21:15,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:21:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:15,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:15,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:15,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:21:15,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:21:15,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:21:15,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:15,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:15,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:21:15,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:21:15,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:21:15,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:21:15,948 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:21:15,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [495906800] [2020-10-14 23:21:15,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:21:15,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 23:21:15,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500442352] [2020-10-14 23:21:15,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 23:21:15,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:21:15,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 23:21:15,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-14 23:21:15,950 INFO L87 Difference]: Start difference. First operand 85 states and 90 transitions. Second operand 14 states. [2020-10-14 23:21:16,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:21:16,865 INFO L93 Difference]: Finished difference Result 156 states and 167 transitions. [2020-10-14 23:21:16,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 23:21:16,865 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 70 [2020-10-14 23:21:16,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:21:16,867 INFO L225 Difference]: With dead ends: 156 [2020-10-14 23:21:16,867 INFO L226 Difference]: Without dead ends: 154 [2020-10-14 23:21:16,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2020-10-14 23:21:16,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-14 23:21:16,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 122. [2020-10-14 23:21:16,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-14 23:21:16,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 130 transitions. [2020-10-14 23:21:16,880 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 130 transitions. Word has length 70 [2020-10-14 23:21:16,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:21:16,880 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 130 transitions. [2020-10-14 23:21:16,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 23:21:16,881 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 130 transitions. [2020-10-14 23:21:16,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-14 23:21:16,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:21:16,882 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:21:16,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-14 23:21:16,882 INFO L427 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:21:16,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:21:16,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1279641459, now seen corresponding path program 6 times [2020-10-14 23:21:16,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:21:16,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975746029] [2020-10-14 23:21:16,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:21:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:16,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:16,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:16,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:17,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:17,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:17,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:17,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:17,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:18,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:18,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:18,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:18,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:18,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:18,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:21,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:21,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 23:21:21,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 23:21:21,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-14 23:21:21,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:21,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:21,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 23:21:21,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:21:21,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 23:21:21,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:21:22,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:21:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:22,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:22,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:22,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:21:22,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:21:22,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:21:22,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:22,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:22,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:21:22,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:21:22,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:21:22,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:21:22,296 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:21:22,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [975746029] [2020-10-14 23:21:22,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:21:22,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 23:21:22,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396871628] [2020-10-14 23:21:22,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 23:21:22,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:21:22,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 23:21:22,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-14 23:21:22,306 INFO L87 Difference]: Start difference. First operand 122 states and 130 transitions. Second operand 14 states. [2020-10-14 23:21:23,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:21:23,367 INFO L93 Difference]: Finished difference Result 165 states and 177 transitions. [2020-10-14 23:21:23,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 23:21:23,368 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 78 [2020-10-14 23:21:23,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:21:23,370 INFO L225 Difference]: With dead ends: 165 [2020-10-14 23:21:23,370 INFO L226 Difference]: Without dead ends: 163 [2020-10-14 23:21:23,371 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=83, Invalid=517, Unknown=0, NotChecked=0, Total=600 [2020-10-14 23:21:23,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-10-14 23:21:23,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 130. [2020-10-14 23:21:23,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-14 23:21:23,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 139 transitions. [2020-10-14 23:21:23,383 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 139 transitions. Word has length 78 [2020-10-14 23:21:23,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:21:23,384 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 139 transitions. [2020-10-14 23:21:23,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 23:21:23,384 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 139 transitions. [2020-10-14 23:21:23,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-14 23:21:23,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:21:23,385 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:21:23,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-14 23:21:23,385 INFO L427 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:21:23,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:21:23,386 INFO L82 PathProgramCache]: Analyzing trace with hash -323189156, now seen corresponding path program 7 times [2020-10-14 23:21:23,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:21:23,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1944956402] [2020-10-14 23:21:23,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:21:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:23,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:23,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:23,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:23,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:23,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:23,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:24,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:24,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:24,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:24,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:27,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:27,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 23:21:27,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 23:21:27,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3756 [2020-10-14 23:21:27,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:27,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:27,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 23:21:27,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:21:27,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 23:21:27,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:21:27,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:21:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:27,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:27,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:27,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:21:27,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:21:27,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:21:27,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:27,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:27,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:21:27,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:21:27,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:21:27,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:21:27,898 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 109 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:21:27,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1944956402] [2020-10-14 23:21:27,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:21:27,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 23:21:27,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408159488] [2020-10-14 23:21:27,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 23:21:27,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:21:27,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 23:21:27,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-14 23:21:27,900 INFO L87 Difference]: Start difference. First operand 130 states and 139 transitions. Second operand 15 states. [2020-10-14 23:21:29,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:21:29,322 INFO L93 Difference]: Finished difference Result 217 states and 234 transitions. [2020-10-14 23:21:29,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 23:21:29,323 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 79 [2020-10-14 23:21:29,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:21:29,324 INFO L225 Difference]: With dead ends: 217 [2020-10-14 23:21:29,325 INFO L226 Difference]: Without dead ends: 215 [2020-10-14 23:21:29,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2020-10-14 23:21:29,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2020-10-14 23:21:29,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 159. [2020-10-14 23:21:29,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-10-14 23:21:29,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 170 transitions. [2020-10-14 23:21:29,339 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 170 transitions. Word has length 79 [2020-10-14 23:21:29,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:21:29,339 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 170 transitions. [2020-10-14 23:21:29,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 23:21:29,339 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 170 transitions. [2020-10-14 23:21:29,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-14 23:21:29,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:21:29,340 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:21:29,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-14 23:21:29,341 INFO L427 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:21:29,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:21:29,341 INFO L82 PathProgramCache]: Analyzing trace with hash -649078057, now seen corresponding path program 8 times [2020-10-14 23:21:29,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:21:29,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245849374] [2020-10-14 23:21:29,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:21:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:29,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:29,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:29,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:29,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:29,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:29,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:29,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:30,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:30,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:31,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:32,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:32,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:32,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:32,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:32,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:32,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:32,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:32,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:34,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:34,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 23:21:34,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-14 23:21:34,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 23:21:34,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:34,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:34,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 23:21:34,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:21:34,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 23:21:34,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:21:34,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:21:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:34,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:34,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:34,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:21:34,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:21:34,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:21:34,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:34,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:34,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:21:34,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:21:34,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:21:34,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:21:34,841 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 16 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:21:34,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [245849374] [2020-10-14 23:21:34,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:21:34,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 23:21:34,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356119812] [2020-10-14 23:21:34,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 23:21:34,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:21:34,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 23:21:34,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-10-14 23:21:34,843 INFO L87 Difference]: Start difference. First operand 159 states and 170 transitions. Second operand 15 states. [2020-10-14 23:21:36,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:21:36,003 INFO L93 Difference]: Finished difference Result 196 states and 211 transitions. [2020-10-14 23:21:36,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 23:21:36,004 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 86 [2020-10-14 23:21:36,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:21:36,005 INFO L225 Difference]: With dead ends: 196 [2020-10-14 23:21:36,005 INFO L226 Difference]: Without dead ends: 131 [2020-10-14 23:21:36,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2020-10-14 23:21:36,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-14 23:21:36,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2020-10-14 23:21:36,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-10-14 23:21:36,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 139 transitions. [2020-10-14 23:21:36,016 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 139 transitions. Word has length 86 [2020-10-14 23:21:36,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:21:36,017 INFO L479 AbstractCegarLoop]: Abstraction has 131 states and 139 transitions. [2020-10-14 23:21:36,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 23:21:36,017 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 139 transitions. [2020-10-14 23:21:36,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-14 23:21:36,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:21:36,018 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:21:36,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-14 23:21:36,018 INFO L427 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:21:36,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:21:36,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1762322854, now seen corresponding path program 9 times [2020-10-14 23:21:36,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:21:36,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645992204] [2020-10-14 23:21:36,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:21:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:36,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:36,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:36,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:36,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:36,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:36,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:36,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:37,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:38,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:38,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:38,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:38,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:38,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:38,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:41,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:41,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 23:21:41,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 23:21:41,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 23:21:41,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:41,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:41,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 23:21:41,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:21:41,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 23:21:41,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:21:41,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:21:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:41,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:41,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:41,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:21:41,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:21:41,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:21:41,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:41,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:21:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:21:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:21:41,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:21:41,812 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:21:41,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645992204] [2020-10-14 23:21:41,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:21:41,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-14 23:21:41,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133136676] [2020-10-14 23:21:41,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 23:21:41,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:21:41,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 23:21:41,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2020-10-14 23:21:41,814 INFO L87 Difference]: Start difference. First operand 131 states and 139 transitions. Second operand 16 states. [2020-10-14 23:21:43,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:21:43,100 INFO L93 Difference]: Finished difference Result 174 states and 186 transitions. [2020-10-14 23:21:43,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 23:21:43,100 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 87 [2020-10-14 23:21:43,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:21:43,101 INFO L225 Difference]: With dead ends: 174 [2020-10-14 23:21:43,101 INFO L226 Difference]: Without dead ends: 172 [2020-10-14 23:21:43,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2020-10-14 23:21:43,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-14 23:21:43,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 139. [2020-10-14 23:21:43,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-10-14 23:21:43,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 148 transitions. [2020-10-14 23:21:43,115 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 148 transitions. Word has length 87 [2020-10-14 23:21:43,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:21:43,116 INFO L479 AbstractCegarLoop]: Abstraction has 139 states and 148 transitions. [2020-10-14 23:21:43,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 23:21:43,116 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 148 transitions. [2020-10-14 23:21:43,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 23:21:43,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:21:43,117 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:21:43,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-14 23:21:43,117 INFO L427 AbstractCegarLoop]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:21:43,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:21:43,118 INFO L82 PathProgramCache]: Analyzing trace with hash -511575965, now seen corresponding path program 10 times [2020-10-14 23:21:43,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:21:43,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [950893423] [2020-10-14 23:21:43,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:21:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:43,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:43,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:43,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:43,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:43,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:43,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:45,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:45,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:45,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:45,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:48,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:48,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 23:21:48,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 23:21:48,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 23:21:48,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:48,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:48,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 23:21:48,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:21:48,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 23:21:48,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:21:48,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:21:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:48,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:48,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:48,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:21:48,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:21:48,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:21:48,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:48,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:48,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:21:48,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:21:48,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:21:48,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:21:48,942 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:21:48,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [950893423] [2020-10-14 23:21:48,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:21:48,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-14 23:21:48,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195415457] [2020-10-14 23:21:48,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 23:21:48,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:21:48,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 23:21:48,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-10-14 23:21:48,944 INFO L87 Difference]: Start difference. First operand 139 states and 148 transitions. Second operand 16 states. [2020-10-14 23:21:50,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:21:50,076 INFO L93 Difference]: Finished difference Result 171 states and 183 transitions. [2020-10-14 23:21:50,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 23:21:50,077 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 88 [2020-10-14 23:21:50,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:21:50,078 INFO L225 Difference]: With dead ends: 171 [2020-10-14 23:21:50,078 INFO L226 Difference]: Without dead ends: 169 [2020-10-14 23:21:50,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=85, Invalid=467, Unknown=0, NotChecked=0, Total=552 [2020-10-14 23:21:50,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-14 23:21:50,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 139. [2020-10-14 23:21:50,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-10-14 23:21:50,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 148 transitions. [2020-10-14 23:21:50,094 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 148 transitions. Word has length 88 [2020-10-14 23:21:50,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:21:50,095 INFO L479 AbstractCegarLoop]: Abstraction has 139 states and 148 transitions. [2020-10-14 23:21:50,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 23:21:50,095 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 148 transitions. [2020-10-14 23:21:50,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-14 23:21:50,096 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:21:50,096 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:21:50,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-14 23:21:50,097 INFO L427 AbstractCegarLoop]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:21:50,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:21:50,097 INFO L82 PathProgramCache]: Analyzing trace with hash 168714992, now seen corresponding path program 11 times [2020-10-14 23:21:50,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:21:50,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883320309] [2020-10-14 23:21:50,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:21:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:50,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:50,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:50,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:50,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:50,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:50,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:50,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:51,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:53,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:53,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:54,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:54,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:54,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:54,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:54,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:54,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:54,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:55,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:55,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:55,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 23:21:55,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-14 23:21:55,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 23:21:55,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:55,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:55,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 23:21:55,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:21:55,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 23:21:55,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:21:55,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:21:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:55,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:55,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:21:55,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:21:55,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:21:55,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:21:55,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:21:55,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:21:55,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:21:55,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:21:55,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:21:55,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:21:55,755 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:21:55,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883320309] [2020-10-14 23:21:55,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:21:55,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-14 23:21:55,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260034204] [2020-10-14 23:21:55,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 23:21:55,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:21:55,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 23:21:55,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2020-10-14 23:21:55,757 INFO L87 Difference]: Start difference. First operand 139 states and 148 transitions. Second operand 16 states. [2020-10-14 23:21:57,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:21:57,381 INFO L93 Difference]: Finished difference Result 192 states and 206 transitions. [2020-10-14 23:21:57,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-14 23:21:57,384 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 95 [2020-10-14 23:21:57,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:21:57,385 INFO L225 Difference]: With dead ends: 192 [2020-10-14 23:21:57,385 INFO L226 Difference]: Without dead ends: 190 [2020-10-14 23:21:57,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=768, Unknown=0, NotChecked=0, Total=870 [2020-10-14 23:21:57,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-10-14 23:21:57,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 147. [2020-10-14 23:21:57,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-14 23:21:57,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 157 transitions. [2020-10-14 23:21:57,398 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 157 transitions. Word has length 95 [2020-10-14 23:21:57,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:21:57,399 INFO L479 AbstractCegarLoop]: Abstraction has 147 states and 157 transitions. [2020-10-14 23:21:57,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 23:21:57,399 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 157 transitions. [2020-10-14 23:21:57,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 23:21:57,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:21:57,400 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:21:57,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-14 23:21:57,401 INFO L427 AbstractCegarLoop]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:21:57,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:21:57,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1344103597, now seen corresponding path program 12 times [2020-10-14 23:21:57,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:21:57,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114188967] [2020-10-14 23:21:57,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:21:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:21:57,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:57,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:57,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:57,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:57,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:57,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:59,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:21:59,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:01,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:01,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:01,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:01,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:01,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:01,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:02,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:22:02,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 23:22:02,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 23:22:02,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 23:22:02,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:22:02,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:22:02,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 23:22:02,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:22:02,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 23:22:02,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:22:03,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:22:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:22:03,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:03,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:22:03,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:22:03,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:22:03,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:22:03,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:22:03,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:22:03,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:22:03,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:22:03,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:22:03,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:22:03,191 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:22:03,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114188967] [2020-10-14 23:22:03,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:22:03,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 23:22:03,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431491472] [2020-10-14 23:22:03,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 23:22:03,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:22:03,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 23:22:03,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2020-10-14 23:22:03,193 INFO L87 Difference]: Start difference. First operand 147 states and 157 transitions. Second operand 17 states. [2020-10-14 23:22:04,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:22:04,568 INFO L93 Difference]: Finished difference Result 253 states and 273 transitions. [2020-10-14 23:22:04,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 23:22:04,569 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 96 [2020-10-14 23:22:04,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:22:04,571 INFO L225 Difference]: With dead ends: 253 [2020-10-14 23:22:04,571 INFO L226 Difference]: Without dead ends: 251 [2020-10-14 23:22:04,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=93, Invalid=609, Unknown=0, NotChecked=0, Total=702 [2020-10-14 23:22:04,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-10-14 23:22:04,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 176. [2020-10-14 23:22:04,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-10-14 23:22:04,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 188 transitions. [2020-10-14 23:22:04,587 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 188 transitions. Word has length 96 [2020-10-14 23:22:04,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:22:04,588 INFO L479 AbstractCegarLoop]: Abstraction has 176 states and 188 transitions. [2020-10-14 23:22:04,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 23:22:04,588 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 188 transitions. [2020-10-14 23:22:04,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-14 23:22:04,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:22:04,589 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:22:04,589 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-14 23:22:04,590 INFO L427 AbstractCegarLoop]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:22:04,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:22:04,590 INFO L82 PathProgramCache]: Analyzing trace with hash 743502394, now seen corresponding path program 13 times [2020-10-14 23:22:04,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:22:04,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [624792715] [2020-10-14 23:22:04,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:22:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:22:04,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:04,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:04,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:04,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:04,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:05,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:05,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:05,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:05,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:05,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:08,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:09,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:09,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:22:09,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-14 23:22:09,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 23:22:09,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-14 23:22:09,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:22:09,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:22:09,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 23:22:09,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:22:09,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 23:22:09,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:22:10,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:22:10,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:22:10,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:10,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:22:10,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:22:10,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:22:10,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:22:10,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:22:10,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:22:10,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:22:10,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:22:10,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:22:10,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:22:10,369 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 20 proven. 179 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:22:10,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [624792715] [2020-10-14 23:22:10,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:22:10,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 23:22:10,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538116753] [2020-10-14 23:22:10,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 23:22:10,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:22:10,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 23:22:10,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2020-10-14 23:22:10,371 INFO L87 Difference]: Start difference. First operand 176 states and 188 transitions. Second operand 17 states. [2020-10-14 23:22:11,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:22:11,960 INFO L93 Difference]: Finished difference Result 221 states and 238 transitions. [2020-10-14 23:22:11,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 23:22:11,960 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 103 [2020-10-14 23:22:11,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:22:11,961 INFO L225 Difference]: With dead ends: 221 [2020-10-14 23:22:11,962 INFO L226 Difference]: Without dead ends: 148 [2020-10-14 23:22:11,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2020-10-14 23:22:11,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-14 23:22:11,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-10-14 23:22:11,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-14 23:22:11,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 157 transitions. [2020-10-14 23:22:11,976 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 157 transitions. Word has length 103 [2020-10-14 23:22:11,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:22:11,977 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 157 transitions. [2020-10-14 23:22:11,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 23:22:11,977 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 157 transitions. [2020-10-14 23:22:11,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 23:22:11,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:22:11,978 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:22:11,978 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-14 23:22:11,978 INFO L427 AbstractCegarLoop]: === Iteration 42 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:22:11,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:22:11,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1370167561, now seen corresponding path program 14 times [2020-10-14 23:22:11,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:22:11,979 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [590635255] [2020-10-14 23:22:11,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:22:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:22:12,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:12,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:12,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:12,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:12,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:12,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:12,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:14,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:14,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:15,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:16,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:16,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:16,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:16,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:16,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:16,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:16,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:16,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:17,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:22:17,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 23:22:17,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-14 23:22:17,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 23:22:17,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:22:17,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:22:17,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 23:22:17,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:22:17,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 23:22:17,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:22:17,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:22:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:22:17,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:17,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:22:17,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:22:17,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:22:17,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:22:17,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:22:17,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:22:17,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:22:17,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:22:17,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:22:17,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:22:17,924 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 205 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:22:17,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [590635255] [2020-10-14 23:22:17,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:22:17,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-14 23:22:17,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576553389] [2020-10-14 23:22:17,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 23:22:17,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:22:17,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 23:22:17,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2020-10-14 23:22:17,926 INFO L87 Difference]: Start difference. First operand 148 states and 157 transitions. Second operand 18 states. [2020-10-14 23:22:19,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:22:19,785 INFO L93 Difference]: Finished difference Result 201 states and 215 transitions. [2020-10-14 23:22:19,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-14 23:22:19,787 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 104 [2020-10-14 23:22:19,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:22:19,789 INFO L225 Difference]: With dead ends: 201 [2020-10-14 23:22:19,790 INFO L226 Difference]: Without dead ends: 199 [2020-10-14 23:22:19,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=119, Invalid=937, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 23:22:19,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-10-14 23:22:19,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 156. [2020-10-14 23:22:19,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-14 23:22:19,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 166 transitions. [2020-10-14 23:22:19,806 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 166 transitions. Word has length 104 [2020-10-14 23:22:19,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:22:19,807 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 166 transitions. [2020-10-14 23:22:19,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 23:22:19,807 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 166 transitions. [2020-10-14 23:22:19,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-14 23:22:19,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:22:19,808 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:22:19,808 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-14 23:22:19,808 INFO L427 AbstractCegarLoop]: === Iteration 43 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:22:19,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:22:19,809 INFO L82 PathProgramCache]: Analyzing trace with hash 883384710, now seen corresponding path program 15 times [2020-10-14 23:22:19,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:22:19,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039530914] [2020-10-14 23:22:19,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:22:19,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:22:19,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:19,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:19,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:20,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:20,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:20,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:20,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:23,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:23,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:23,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:23,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:23,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:24,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:22:24,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 23:22:24,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 23:22:24,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 23:22:24,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:22:24,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:22:24,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 23:22:24,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:22:24,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-14 23:22:24,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:22:25,546 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2020-10-14 23:22:26,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:22:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:22:26,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:26,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:22:26,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:22:26,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:22:26,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:22:26,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:22:26,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:22:26,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:22:26,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:22:26,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:22:26,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:22:26,212 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:22:26,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039530914] [2020-10-14 23:22:26,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:22:26,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-14 23:22:26,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324938999] [2020-10-14 23:22:26,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 23:22:26,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:22:26,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 23:22:26,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2020-10-14 23:22:26,214 INFO L87 Difference]: Start difference. First operand 156 states and 166 transitions. Second operand 18 states. [2020-10-14 23:22:27,071 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2020-10-14 23:22:27,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:22:27,984 INFO L93 Difference]: Finished difference Result 198 states and 212 transitions. [2020-10-14 23:22:27,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 23:22:27,985 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 105 [2020-10-14 23:22:27,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:22:27,986 INFO L225 Difference]: With dead ends: 198 [2020-10-14 23:22:27,986 INFO L226 Difference]: Without dead ends: 196 [2020-10-14 23:22:27,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=105, Invalid=707, Unknown=0, NotChecked=0, Total=812 [2020-10-14 23:22:27,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-10-14 23:22:28,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 156. [2020-10-14 23:22:28,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-14 23:22:28,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 166 transitions. [2020-10-14 23:22:28,011 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 166 transitions. Word has length 105 [2020-10-14 23:22:28,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:22:28,013 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 166 transitions. [2020-10-14 23:22:28,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 23:22:28,014 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 166 transitions. [2020-10-14 23:22:28,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 23:22:28,014 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:22:28,015 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:22:28,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-14 23:22:28,017 INFO L427 AbstractCegarLoop]: === Iteration 44 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:22:28,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:22:28,017 INFO L82 PathProgramCache]: Analyzing trace with hash -2119008447, now seen corresponding path program 16 times [2020-10-14 23:22:28,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:22:28,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702143873] [2020-10-14 23:22:28,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:22:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:22:28,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:28,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:28,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:28,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:28,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:28,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:28,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:29,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:29,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:33,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:22:33,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 23:22:33,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 23:22:33,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-14 23:22:33,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:22:33,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:22:33,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:22:33,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-14 23:22:33,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 23:22:33,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:22:33,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:22:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:22:33,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:33,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:22:33,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:22:33,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:22:33,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:22:33,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:22:33,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:22:33,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:22:33,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:22:33,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:22:33,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:22:33,131 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 98 proven. 4 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-10-14 23:22:33,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702143873] [2020-10-14 23:22:33,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:22:33,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 23:22:33,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363171225] [2020-10-14 23:22:33,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 23:22:33,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:22:33,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 23:22:33,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 23:22:33,133 INFO L87 Difference]: Start difference. First operand 156 states and 166 transitions. Second operand 5 states. [2020-10-14 23:22:33,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:22:33,246 INFO L93 Difference]: Finished difference Result 199 states and 214 transitions. [2020-10-14 23:22:33,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 23:22:33,246 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2020-10-14 23:22:33,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:22:33,248 INFO L225 Difference]: With dead ends: 199 [2020-10-14 23:22:33,248 INFO L226 Difference]: Without dead ends: 156 [2020-10-14 23:22:33,249 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 [2020-10-14 23:22:33,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-10-14 23:22:33,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2020-10-14 23:22:33,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-14 23:22:33,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 160 transitions. [2020-10-14 23:22:33,261 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 160 transitions. Word has length 112 [2020-10-14 23:22:33,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:22:33,262 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 160 transitions. [2020-10-14 23:22:33,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 23:22:33,262 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 160 transitions. [2020-10-14 23:22:33,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 23:22:33,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:22:33,263 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:22:33,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-14 23:22:33,263 INFO L427 AbstractCegarLoop]: === Iteration 45 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:22:33,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:22:33,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1369908939, now seen corresponding path program 1 times [2020-10-14 23:22:33,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:22:33,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [987476092] [2020-10-14 23:22:33,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:22:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:22:33,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:33,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:36,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:22:36,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 23:22:36,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:22:36,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2962 [2020-10-14 23:22:36,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:22:36,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:22:36,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 23:22:36,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:22:36,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 23:22:36,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:22:36,734 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-10-14 23:22:37,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:22:37,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:22:37,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:37,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:22:37,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:22:37,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:22:37,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:22:37,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:22:37,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:22:37,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:22:37,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:22:37,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:22:37,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:22:37,578 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:22:37,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [987476092] [2020-10-14 23:22:37,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:22:37,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-14 23:22:37,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351197863] [2020-10-14 23:22:37,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 23:22:37,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:22:37,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 23:22:37,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2020-10-14 23:22:37,585 INFO L87 Difference]: Start difference. First operand 156 states and 160 transitions. Second operand 18 states. [2020-10-14 23:22:39,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:22:39,673 INFO L93 Difference]: Finished difference Result 208 states and 212 transitions. [2020-10-14 23:22:39,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 23:22:39,673 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 112 [2020-10-14 23:22:39,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:22:39,674 INFO L225 Difference]: With dead ends: 208 [2020-10-14 23:22:39,675 INFO L226 Difference]: Without dead ends: 206 [2020-10-14 23:22:39,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2020-10-14 23:22:39,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-14 23:22:39,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 164. [2020-10-14 23:22:39,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-14 23:22:39,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 168 transitions. [2020-10-14 23:22:39,689 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 168 transitions. Word has length 112 [2020-10-14 23:22:39,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:22:39,690 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 168 transitions. [2020-10-14 23:22:39,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 23:22:39,690 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 168 transitions. [2020-10-14 23:22:39,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-14 23:22:39,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:22:39,691 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:22:39,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-14 23:22:39,691 INFO L427 AbstractCegarLoop]: === Iteration 46 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:22:39,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:22:39,692 INFO L82 PathProgramCache]: Analyzing trace with hash 177652952, now seen corresponding path program 2 times [2020-10-14 23:22:39,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:22:39,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178815893] [2020-10-14 23:22:39,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:22:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:22:39,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:39,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:43,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:22:43,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 23:22:43,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:22:43,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3325 [2020-10-14 23:22:43,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:22:43,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:22:43,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 23:22:43,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:22:43,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 23:22:43,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:22:44,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:22:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:22:44,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:44,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:22:44,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:22:44,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:22:44,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:22:44,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:22:44,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:22:44,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:22:44,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:22:44,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:22:44,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:22:44,167 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 258 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:22:44,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178815893] [2020-10-14 23:22:44,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:22:44,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 23:22:44,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529259038] [2020-10-14 23:22:44,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 23:22:44,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:22:44,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 23:22:44,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2020-10-14 23:22:44,169 INFO L87 Difference]: Start difference. First operand 164 states and 168 transitions. Second operand 19 states. [2020-10-14 23:22:45,161 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-14 23:22:46,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:22:46,362 INFO L93 Difference]: Finished difference Result 275 states and 281 transitions. [2020-10-14 23:22:46,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 23:22:46,363 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 113 [2020-10-14 23:22:46,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:22:46,365 INFO L225 Difference]: With dead ends: 275 [2020-10-14 23:22:46,365 INFO L226 Difference]: Without dead ends: 273 [2020-10-14 23:22:46,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=97, Invalid=715, Unknown=0, NotChecked=0, Total=812 [2020-10-14 23:22:46,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-10-14 23:22:46,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 193. [2020-10-14 23:22:46,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-10-14 23:22:46,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 199 transitions. [2020-10-14 23:22:46,389 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 199 transitions. Word has length 113 [2020-10-14 23:22:46,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:22:46,389 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 199 transitions. [2020-10-14 23:22:46,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 23:22:46,389 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 199 transitions. [2020-10-14 23:22:46,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-14 23:22:46,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:22:46,390 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:22:46,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-14 23:22:46,391 INFO L427 AbstractCegarLoop]: === Iteration 47 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:22:46,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:22:46,391 INFO L82 PathProgramCache]: Analyzing trace with hash 2093682839, now seen corresponding path program 3 times [2020-10-14 23:22:46,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:22:46,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [278928918] [2020-10-14 23:22:46,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:22:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:22:46,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:46,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:49,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:22:49,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 23:22:49,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:22:49,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2666 [2020-10-14 23:22:49,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:22:49,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:22:49,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 23:22:49,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:22:49,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 23:22:49,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:22:49,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:22:49,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:22:49,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:49,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:22:49,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:22:49,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:22:49,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:22:49,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:22:49,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:22:49,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:22:49,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:22:49,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:22:49,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:22:49,962 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 24 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:22:49,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [278928918] [2020-10-14 23:22:49,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:22:49,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 23:22:49,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470511183] [2020-10-14 23:22:49,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 23:22:49,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:22:49,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 23:22:49,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=305, Unknown=0, NotChecked=0, Total=342 [2020-10-14 23:22:49,963 INFO L87 Difference]: Start difference. First operand 193 states and 199 transitions. Second operand 19 states. [2020-10-14 23:22:52,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:22:52,139 INFO L93 Difference]: Finished difference Result 245 states and 251 transitions. [2020-10-14 23:22:52,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 23:22:52,139 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 120 [2020-10-14 23:22:52,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:22:52,140 INFO L225 Difference]: With dead ends: 245 [2020-10-14 23:22:52,140 INFO L226 Difference]: Without dead ends: 165 [2020-10-14 23:22:52,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=96, Invalid=960, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 23:22:52,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-10-14 23:22:52,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2020-10-14 23:22:52,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-10-14 23:22:52,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 169 transitions. [2020-10-14 23:22:52,158 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 169 transitions. Word has length 120 [2020-10-14 23:22:52,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:22:52,159 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 169 transitions. [2020-10-14 23:22:52,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 23:22:52,159 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 169 transitions. [2020-10-14 23:22:52,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-14 23:22:52,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:22:52,160 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:22:52,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-14 23:22:52,160 INFO L427 AbstractCegarLoop]: === Iteration 48 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:22:52,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:22:52,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1699327580, now seen corresponding path program 4 times [2020-10-14 23:22:52,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:22:52,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [397609592] [2020-10-14 23:22:52,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:22:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:22:52,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:52,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:55,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:22:55,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 23:22:55,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:22:55,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3755 [2020-10-14 23:22:55,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:22:55,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:22:55,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 23:22:55,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:22:55,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-14 23:22:55,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:22:56,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:22:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:22:56,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:56,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:22:56,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:22:56,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:22:56,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:22:56,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:22:56,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:22:56,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:22:56,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:22:56,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:22:56,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:22:57,088 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:22:57,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [397609592] [2020-10-14 23:22:57,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:22:57,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-14 23:22:57,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446984164] [2020-10-14 23:22:57,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 23:22:57,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:22:57,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 23:22:57,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2020-10-14 23:22:57,090 INFO L87 Difference]: Start difference. First operand 165 states and 169 transitions. Second operand 20 states. [2020-10-14 23:22:59,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:22:59,367 INFO L93 Difference]: Finished difference Result 217 states and 221 transitions. [2020-10-14 23:22:59,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 23:22:59,368 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 121 [2020-10-14 23:22:59,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:22:59,369 INFO L225 Difference]: With dead ends: 217 [2020-10-14 23:22:59,369 INFO L226 Difference]: Without dead ends: 215 [2020-10-14 23:22:59,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=98, Invalid=894, Unknown=0, NotChecked=0, Total=992 [2020-10-14 23:22:59,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2020-10-14 23:22:59,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 173. [2020-10-14 23:22:59,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-10-14 23:22:59,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 177 transitions. [2020-10-14 23:22:59,389 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 177 transitions. Word has length 121 [2020-10-14 23:22:59,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:22:59,390 INFO L479 AbstractCegarLoop]: Abstraction has 173 states and 177 transitions. [2020-10-14 23:22:59,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 23:22:59,390 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 177 transitions. [2020-10-14 23:22:59,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-14 23:22:59,391 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:22:59,391 INFO L422 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 7, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:22:59,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-14 23:22:59,391 INFO L427 AbstractCegarLoop]: === Iteration 49 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:22:59,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:22:59,392 INFO L82 PathProgramCache]: Analyzing trace with hash -479398625, now seen corresponding path program 5 times [2020-10-14 23:22:59,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:22:59,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2054764081] [2020-10-14 23:22:59,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:22:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:22:59,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:22:59,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:23:04,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:23:04,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 23:23:04,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:23:04,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4666 [2020-10-14 23:23:04,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:23:04,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:23:04,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 23:23:04,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:23:04,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 23:23:04,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:23:04,922 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2020-10-14 23:23:05,087 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-10-14 23:23:05,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:23:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:23:05,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:23:05,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:23:05,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:23:05,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:23:05,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:23:05,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:23:05,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:23:05,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:23:05,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:23:05,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:23:05,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 23:23:05,726 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:23:05,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2054764081] [2020-10-14 23:23:05,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:23:05,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-14 23:23:05,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616381411] [2020-10-14 23:23:05,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 23:23:05,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:23:05,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 23:23:05,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2020-10-14 23:23:05,728 INFO L87 Difference]: Start difference. First operand 173 states and 177 transitions. Second operand 20 states. [2020-10-14 23:23:07,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:23:07,549 INFO L93 Difference]: Finished difference Result 215 states and 219 transitions. [2020-10-14 23:23:07,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 23:23:07,549 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 122 [2020-10-14 23:23:07,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:23:07,551 INFO L225 Difference]: With dead ends: 215 [2020-10-14 23:23:07,551 INFO L226 Difference]: Without dead ends: 213 [2020-10-14 23:23:07,552 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2020-10-14 23:23:07,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-10-14 23:23:07,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 173. [2020-10-14 23:23:07,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-10-14 23:23:07,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 177 transitions. [2020-10-14 23:23:07,566 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 177 transitions. Word has length 122 [2020-10-14 23:23:07,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:23:07,567 INFO L479 AbstractCegarLoop]: Abstraction has 173 states and 177 transitions. [2020-10-14 23:23:07,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 23:23:07,567 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 177 transitions. [2020-10-14 23:23:07,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-14 23:23:07,568 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:23:07,568 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:23:07,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-14 23:23:07,568 INFO L427 AbstractCegarLoop]: === Iteration 50 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:23:07,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:23:07,569 INFO L82 PathProgramCache]: Analyzing trace with hash 789729904, now seen corresponding path program 6 times [2020-10-14 23:23:07,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:23:07,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [238204538] [2020-10-14 23:23:07,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:23:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:23:07,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:23:07,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:23:11,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:23:11,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-14 23:23:11,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:23:11,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4291 [2020-10-14 23:23:11,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:23:11,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:23:11,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 23:23:11,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:23:11,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 23:23:11,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:23:12,603 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-10-14 23:23:13,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:23:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:23:13,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:23:13,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:23:13,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:23:13,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:23:13,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:23:13,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:23:13,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:23:13,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:23:13,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:23:13,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:23:13,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:23:13,269 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:23:13,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [238204538] [2020-10-14 23:23:13,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:23:13,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-14 23:23:13,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860540126] [2020-10-14 23:23:13,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 23:23:13,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:23:13,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 23:23:13,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2020-10-14 23:23:13,271 INFO L87 Difference]: Start difference. First operand 173 states and 177 transitions. Second operand 20 states. [2020-10-14 23:23:16,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:23:16,055 INFO L93 Difference]: Finished difference Result 233 states and 237 transitions. [2020-10-14 23:23:16,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-14 23:23:16,055 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 129 [2020-10-14 23:23:16,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:23:16,057 INFO L225 Difference]: With dead ends: 233 [2020-10-14 23:23:16,057 INFO L226 Difference]: Without dead ends: 231 [2020-10-14 23:23:16,058 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=93, Invalid=963, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 23:23:16,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-10-14 23:23:16,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 181. [2020-10-14 23:23:16,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-10-14 23:23:16,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 185 transitions. [2020-10-14 23:23:16,083 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 185 transitions. Word has length 129 [2020-10-14 23:23:16,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:23:16,083 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 185 transitions. [2020-10-14 23:23:16,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 23:23:16,083 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 185 transitions. [2020-10-14 23:23:16,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-14 23:23:16,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:23:16,086 INFO L422 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:23:16,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-10-14 23:23:16,087 INFO L427 AbstractCegarLoop]: === Iteration 51 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:23:16,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:23:16,087 INFO L82 PathProgramCache]: Analyzing trace with hash 827804395, now seen corresponding path program 7 times [2020-10-14 23:23:16,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:23:16,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [519241662] [2020-10-14 23:23:16,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:23:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:23:16,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:23:16,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:23:20,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:23:20,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 23:23:20,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:23:20,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4836 [2020-10-14 23:23:20,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:23:20,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:23:20,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 23:23:20,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:23:20,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 23:23:20,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:23:21,623 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-10-14 23:23:21,756 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-14 23:23:21,907 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-14 23:23:22,070 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-14 23:23:22,240 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2020-10-14 23:23:22,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:23:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:23:22,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:23:22,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:23:22,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:23:22,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:23:22,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:23:22,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:23:22,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:23:22,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:23:22,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:23:22,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:23:22,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:23:22,919 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 0 proven. 358 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:23:22,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [519241662] [2020-10-14 23:23:22,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:23:22,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 23:23:22,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678874720] [2020-10-14 23:23:22,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 23:23:22,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:23:22,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 23:23:22,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2020-10-14 23:23:22,921 INFO L87 Difference]: Start difference. First operand 181 states and 185 transitions. Second operand 21 states. [2020-10-14 23:23:24,329 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2020-10-14 23:23:24,549 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-14 23:23:26,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:23:26,151 INFO L93 Difference]: Finished difference Result 308 states and 314 transitions. [2020-10-14 23:23:26,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 23:23:26,152 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 130 [2020-10-14 23:23:26,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:23:26,154 INFO L225 Difference]: With dead ends: 308 [2020-10-14 23:23:26,154 INFO L226 Difference]: Without dead ends: 306 [2020-10-14 23:23:26,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=105, Invalid=887, Unknown=0, NotChecked=0, Total=992 [2020-10-14 23:23:26,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-10-14 23:23:26,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 210. [2020-10-14 23:23:26,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-10-14 23:23:26,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 216 transitions. [2020-10-14 23:23:26,180 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 216 transitions. Word has length 130 [2020-10-14 23:23:26,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:23:26,181 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 216 transitions. [2020-10-14 23:23:26,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 23:23:26,181 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 216 transitions. [2020-10-14 23:23:26,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-14 23:23:26,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:23:26,182 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:23:26,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-10-14 23:23:26,182 INFO L427 AbstractCegarLoop]: === Iteration 52 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:23:26,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:23:26,183 INFO L82 PathProgramCache]: Analyzing trace with hash -839465156, now seen corresponding path program 8 times [2020-10-14 23:23:26,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:23:26,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720436522] [2020-10-14 23:23:26,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:23:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:23:26,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:23:26,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:23:30,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:23:30,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 23:23:30,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:23:30,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4443 [2020-10-14 23:23:30,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:23:30,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:23:30,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 23:23:30,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:23:30,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 23:23:30,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:23:31,262 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-10-14 23:23:31,413 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2020-10-14 23:23:31,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:23:31,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:23:31,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:23:31,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:23:31,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:23:31,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:23:31,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:23:31,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:23:31,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:23:31,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:23:31,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:23:31,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:23:31,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:23:32,135 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 28 proven. 368 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:23:32,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720436522] [2020-10-14 23:23:32,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:23:32,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 23:23:32,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269564760] [2020-10-14 23:23:32,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 23:23:32,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:23:32,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 23:23:32,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2020-10-14 23:23:32,137 INFO L87 Difference]: Start difference. First operand 210 states and 216 transitions. Second operand 21 states. [2020-10-14 23:23:35,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:23:35,120 INFO L93 Difference]: Finished difference Result 270 states and 276 transitions. [2020-10-14 23:23:35,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 23:23:35,120 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 137 [2020-10-14 23:23:35,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:23:35,122 INFO L225 Difference]: With dead ends: 270 [2020-10-14 23:23:35,122 INFO L226 Difference]: Without dead ends: 182 [2020-10-14 23:23:35,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=108, Invalid=1224, Unknown=0, NotChecked=0, Total=1332 [2020-10-14 23:23:35,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-14 23:23:35,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-10-14 23:23:35,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-10-14 23:23:35,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 186 transitions. [2020-10-14 23:23:35,145 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 186 transitions. Word has length 137 [2020-10-14 23:23:35,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:23:35,145 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 186 transitions. [2020-10-14 23:23:35,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 23:23:35,145 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 186 transitions. [2020-10-14 23:23:35,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-14 23:23:35,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:23:35,146 INFO L422 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:23:35,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2020-10-14 23:23:35,147 INFO L427 AbstractCegarLoop]: === Iteration 53 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:23:35,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:23:35,147 INFO L82 PathProgramCache]: Analyzing trace with hash -727378761, now seen corresponding path program 9 times [2020-10-14 23:23:35,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:23:35,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1558718859] [2020-10-14 23:23:35,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:23:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:23:35,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:23:35,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:23:40,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:23:40,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 23:23:40,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:23:40,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5121 [2020-10-14 23:23:40,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:23:40,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:23:40,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 23:23:40,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:23:40,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 23:23:40,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:23:41,181 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2020-10-14 23:23:41,385 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2020-10-14 23:23:41,589 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2020-10-14 23:23:42,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:23:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:23:42,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:23:42,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:23:42,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:23:42,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:23:42,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:23:42,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:23:42,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:23:42,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:23:42,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:23:42,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:23:42,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:23:42,286 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 0 proven. 404 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:23:42,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1558718859] [2020-10-14 23:23:42,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:23:42,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-14 23:23:42,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797207085] [2020-10-14 23:23:42,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-14 23:23:42,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:23:42,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-14 23:23:42,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2020-10-14 23:23:42,288 INFO L87 Difference]: Start difference. First operand 182 states and 186 transitions. Second operand 22 states. [2020-10-14 23:23:45,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:23:45,677 INFO L93 Difference]: Finished difference Result 242 states and 246 transitions. [2020-10-14 23:23:45,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-14 23:23:45,678 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 138 [2020-10-14 23:23:45,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:23:45,679 INFO L225 Difference]: With dead ends: 242 [2020-10-14 23:23:45,680 INFO L226 Difference]: Without dead ends: 240 [2020-10-14 23:23:45,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=110, Invalid=1150, Unknown=0, NotChecked=0, Total=1260 [2020-10-14 23:23:45,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-10-14 23:23:45,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 190. [2020-10-14 23:23:45,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-10-14 23:23:45,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 194 transitions. [2020-10-14 23:23:45,698 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 194 transitions. Word has length 138 [2020-10-14 23:23:45,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:23:45,698 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 194 transitions. [2020-10-14 23:23:45,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-14 23:23:45,699 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 194 transitions. [2020-10-14 23:23:45,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-14 23:23:45,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:23:45,700 INFO L422 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:23:45,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-10-14 23:23:45,700 INFO L427 AbstractCegarLoop]: === Iteration 54 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:23:45,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:23:45,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1042076036, now seen corresponding path program 10 times [2020-10-14 23:23:45,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:23:45,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1450354781] [2020-10-14 23:23:45,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:23:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:23:45,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:23:46,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:23:50,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:23:50,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 23:23:50,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:23:50,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-14 23:23:50,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:23:50,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:23:50,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 23:23:50,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:23:50,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 23:23:50,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:23:51,714 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2020-10-14 23:23:51,907 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2020-10-14 23:23:52,106 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2020-10-14 23:23:52,405 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2020-10-14 23:23:52,646 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-10-14 23:23:53,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:23:53,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:23:53,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:23:53,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:23:53,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:23:53,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:23:53,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:23:53,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:23:53,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:23:53,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:23:53,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:23:53,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:23:53,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:23:53,415 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:23:53,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1450354781] [2020-10-14 23:23:53,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:23:53,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-14 23:23:53,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120802230] [2020-10-14 23:23:53,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-14 23:23:53,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:23:53,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-14 23:23:53,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2020-10-14 23:23:53,417 INFO L87 Difference]: Start difference. First operand 190 states and 194 transitions. Second operand 22 states. [2020-10-14 23:23:54,757 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-14 23:23:54,983 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-14 23:23:56,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:23:56,264 INFO L93 Difference]: Finished difference Result 240 states and 244 transitions. [2020-10-14 23:23:56,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 23:23:56,264 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 139 [2020-10-14 23:23:56,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:23:56,267 INFO L225 Difference]: With dead ends: 240 [2020-10-14 23:23:56,267 INFO L226 Difference]: Without dead ends: 238 [2020-10-14 23:23:56,267 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=99, Invalid=893, Unknown=0, NotChecked=0, Total=992 [2020-10-14 23:23:56,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-14 23:23:56,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 190. [2020-10-14 23:23:56,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-10-14 23:23:56,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 194 transitions. [2020-10-14 23:23:56,293 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 194 transitions. Word has length 139 [2020-10-14 23:23:56,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:23:56,293 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 194 transitions. [2020-10-14 23:23:56,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-14 23:23:56,293 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 194 transitions. [2020-10-14 23:23:56,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-14 23:23:56,294 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:23:56,295 INFO L422 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:23:56,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-10-14 23:23:56,295 INFO L427 AbstractCegarLoop]: === Iteration 55 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:23:56,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:23:56,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1130212733, now seen corresponding path program 11 times [2020-10-14 23:23:56,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:23:56,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [184447891] [2020-10-14 23:23:56,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:23:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:23:56,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:23:56,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:01,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:01,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-14 23:24:01,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:24:01,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-14 23:24:01,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:01,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:01,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 23:24:01,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:24:01,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-14 23:24:01,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:24:01,931 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2020-10-14 23:24:02,128 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2020-10-14 23:24:02,377 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2020-10-14 23:24:02,631 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2020-10-14 23:24:03,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:24:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:03,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:03,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:03,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:03,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:03,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:24:03,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:03,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:03,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:24:03,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:03,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:24:03,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:03,523 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:24:03,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [184447891] [2020-10-14 23:24:03,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:24:03,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-14 23:24:03,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959355891] [2020-10-14 23:24:03,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-14 23:24:03,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:24:03,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-14 23:24:03,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2020-10-14 23:24:03,525 INFO L87 Difference]: Start difference. First operand 190 states and 194 transitions. Second operand 22 states. [2020-10-14 23:24:05,564 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-14 23:24:07,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:24:07,564 INFO L93 Difference]: Finished difference Result 258 states and 262 transitions. [2020-10-14 23:24:07,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-14 23:24:07,565 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 146 [2020-10-14 23:24:07,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:24:07,567 INFO L225 Difference]: With dead ends: 258 [2020-10-14 23:24:07,568 INFO L226 Difference]: Without dead ends: 256 [2020-10-14 23:24:07,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 6 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=105, Invalid=1227, Unknown=0, NotChecked=0, Total=1332 [2020-10-14 23:24:07,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-10-14 23:24:07,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 198. [2020-10-14 23:24:07,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-14 23:24:07,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 202 transitions. [2020-10-14 23:24:07,599 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 202 transitions. Word has length 146 [2020-10-14 23:24:07,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:24:07,599 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 202 transitions. [2020-10-14 23:24:07,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-14 23:24:07,599 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 202 transitions. [2020-10-14 23:24:07,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-14 23:24:07,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:24:07,600 INFO L422 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:24:07,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-10-14 23:24:07,601 INFO L427 AbstractCegarLoop]: === Iteration 56 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:24:07,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:24:07,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1150619056, now seen corresponding path program 12 times [2020-10-14 23:24:07,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:24:07,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2033894445] [2020-10-14 23:24:07,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:24:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:07,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:08,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:12,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:12,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-14 23:24:12,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:24:12,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-14 23:24:12,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:12,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:12,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 23:24:12,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:24:12,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 23:24:12,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:24:13,424 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2020-10-14 23:24:13,588 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2020-10-14 23:24:13,765 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2020-10-14 23:24:13,969 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-14 23:24:14,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:24:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:14,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:14,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:14,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:14,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:14,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:24:14,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:14,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:14,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:24:14,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:14,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:24:14,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:24:14,770 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 0 proven. 475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:24:14,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2033894445] [2020-10-14 23:24:14,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:24:14,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 23:24:14,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785166957] [2020-10-14 23:24:14,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 23:24:14,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:24:14,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 23:24:14,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2020-10-14 23:24:14,772 INFO L87 Difference]: Start difference. First operand 198 states and 202 transitions. Second operand 23 states.