/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:32:24,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:32:24,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:32:24,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:32:24,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:32:24,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:32:24,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:32:24,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:32:24,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:32:24,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:32:24,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:32:24,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:32:24,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:32:24,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:32:24,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:32:24,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:32:24,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:32:24,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:32:24,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:32:24,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:32:24,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:32:24,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:32:24,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:32:24,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:32:24,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:32:24,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:32:24,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:32:24,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:32:24,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:32:24,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:32:24,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:32:24,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:32:24,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:32:24,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:32:24,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:32:24,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:32:24,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:32:24,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:32:24,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:32:24,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:32:24,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:32:24,773 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 05:32:24,800 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:32:24,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:32:24,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:32:24,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:32:24,803 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:32:24,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:32:24,803 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:32:24,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:32:24,804 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:32:24,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:32:24,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:32:24,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:32:24,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:32:24,805 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:32:24,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:32:24,805 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:32:24,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:32:24,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:32:24,806 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:32:24,806 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:32:24,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:32:24,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:32:24,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:32:24,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:32:24,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:32:24,807 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:32:24,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:32:24,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:32:24,808 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:32:24,808 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:32:25,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:32:25,364 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:32:25,369 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:32:25,372 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:32:25,373 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:32:25,374 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-01-2.i [2020-09-25 05:32:25,470 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4e4c02b04/1cebcb04b86a45ea806f818da055a09c/FLAG9926a5c3c [2020-09-25 05:32:26,165 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:32:26,166 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/sll-01-2.i [2020-09-25 05:32:26,192 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4e4c02b04/1cebcb04b86a45ea806f818da055a09c/FLAG9926a5c3c [2020-09-25 05:32:26,345 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4e4c02b04/1cebcb04b86a45ea806f818da055a09c [2020-09-25 05:32:26,361 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:32:26,368 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:32:26,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:32:26,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:32:26,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:32:26,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:32:26" (1/1) ... [2020-09-25 05:32:26,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59c286c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:26, skipping insertion in model container [2020-09-25 05:32:26,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:32:26" (1/1) ... [2020-09-25 05:32:26,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:32:26,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:32:26,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:32:27,004 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:32:27,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:32:27,132 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:32:27,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:27 WrapperNode [2020-09-25 05:32:27,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:32:27,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:32:27,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:32:27,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:32:27,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:27" (1/1) ... [2020-09-25 05:32:27,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:27" (1/1) ... [2020-09-25 05:32:27,174 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:27" (1/1) ... [2020-09-25 05:32:27,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:27" (1/1) ... [2020-09-25 05:32:27,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:27" (1/1) ... [2020-09-25 05:32:27,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:27" (1/1) ... [2020-09-25 05:32:27,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:27" (1/1) ... [2020-09-25 05:32:27,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:32:27,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:32:27,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:32:27,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:32:27,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:27" (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 [2020-09-25 05:32:27,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:32:27,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:32:27,354 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:32:27,355 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 05:32:27,355 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 05:32:27,355 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 05:32:27,355 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 05:32:27,355 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 05:32:27,356 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 05:32:27,356 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 05:32:27,356 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 05:32:27,356 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 05:32:27,356 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 05:32:27,357 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 05:32:27,357 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 05:32:27,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 05:32:27,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 05:32:27,359 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 05:32:27,359 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 05:32:27,359 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 05:32:27,359 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 05:32:27,360 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 05:32:27,360 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 05:32:27,360 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 05:32:27,360 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 05:32:27,361 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 05:32:27,362 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 05:32:27,362 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 05:32:27,362 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 05:32:27,362 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 05:32:27,363 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 05:32:27,363 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 05:32:27,364 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 05:32:27,364 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 05:32:27,364 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 05:32:27,365 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 05:32:27,365 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 05:32:27,365 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 05:32:27,365 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 05:32:27,365 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 05:32:27,365 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 05:32:27,366 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 05:32:27,366 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 05:32:27,366 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 05:32:27,366 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 05:32:27,366 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 05:32:27,366 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 05:32:27,366 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 05:32:27,367 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 05:32:27,367 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 05:32:27,367 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 05:32:27,367 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 05:32:27,367 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 05:32:27,367 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:32:27,367 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 05:32:27,368 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 05:32:27,368 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:32:27,368 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 05:32:27,368 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 05:32:27,368 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 05:32:27,368 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 05:32:27,368 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 05:32:27,369 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 05:32:27,369 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 05:32:27,369 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 05:32:27,369 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 05:32:27,369 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 05:32:27,370 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 05:32:27,370 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 05:32:27,371 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 05:32:27,371 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 05:32:27,373 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 05:32:27,374 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 05:32:27,374 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 05:32:27,374 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 05:32:27,374 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 05:32:27,374 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 05:32:27,374 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 05:32:27,375 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 05:32:27,375 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 05:32:27,375 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 05:32:27,375 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 05:32:27,376 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 05:32:27,376 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 05:32:27,376 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 05:32:27,376 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 05:32:27,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 05:32:27,377 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 05:32:27,377 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 05:32:27,377 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 05:32:27,377 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 05:32:27,377 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 05:32:27,377 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 05:32:27,378 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 05:32:27,378 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 05:32:27,378 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 05:32:27,378 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 05:32:27,378 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 05:32:27,378 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 05:32:27,378 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 05:32:27,379 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 05:32:27,379 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 05:32:27,379 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 05:32:27,379 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 05:32:27,379 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 05:32:27,379 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 05:32:27,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:32:27,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:32:27,380 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:32:27,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:32:27,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:32:27,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:32:27,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:32:27,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:32:27,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:32:28,103 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:32:28,103 INFO L295 CfgBuilder]: Removed 30 assume(true) statements. [2020-09-25 05:32:28,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:32:28 BoogieIcfgContainer [2020-09-25 05:32:28,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:32:28,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:32:28,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:32:28,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:32:28,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:32:26" (1/3) ... [2020-09-25 05:32:28,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349fda3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:32:28, skipping insertion in model container [2020-09-25 05:32:28,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:27" (2/3) ... [2020-09-25 05:32:28,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349fda3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:32:28, skipping insertion in model container [2020-09-25 05:32:28,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:32:28" (3/3) ... [2020-09-25 05:32:28,120 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-01-2.i [2020-09-25 05:32:28,132 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:32:28,143 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-09-25 05:32:28,172 INFO L251 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-09-25 05:32:28,205 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:32:28,205 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:32:28,206 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:32:28,206 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:32:28,206 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:32:28,206 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:32:28,206 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:32:28,206 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:32:28,236 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2020-09-25 05:32:28,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-25 05:32:28,243 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:28,244 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:28,245 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:32:28,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:28,253 INFO L82 PathProgramCache]: Analyzing trace with hash 885652866, now seen corresponding path program 1 times [2020-09-25 05:32:28,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:28,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359714461] [2020-09-25 05:32:28,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:28,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:28,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:28,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 05:32:28,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:28,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-09-25 05:32:28,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:28,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:28,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:32:28,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:32:28,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:32:28,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:32:28,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:28,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:28,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:28,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:28,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:28,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 05:32:28,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:28,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:28,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:28,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:28,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:28,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:28,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:28,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1359714461] [2020-09-25 05:32:28,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:28,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:32:28,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153136292] [2020-09-25 05:32:28,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:32:28,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:28,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:32:28,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:32:28,799 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 5 states. [2020-09-25 05:32:29,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:29,292 INFO L93 Difference]: Finished difference Result 360 states and 478 transitions. [2020-09-25 05:32:29,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:32:29,295 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-25 05:32:29,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:29,311 INFO L225 Difference]: With dead ends: 360 [2020-09-25 05:32:29,311 INFO L226 Difference]: Without dead ends: 194 [2020-09-25 05:32:29,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:32:29,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-09-25 05:32:29,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 164. [2020-09-25 05:32:29,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-09-25 05:32:29,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 174 transitions. [2020-09-25 05:32:29,394 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 174 transitions. Word has length 12 [2020-09-25 05:32:29,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:29,395 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 174 transitions. [2020-09-25 05:32:29,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:32:29,395 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 174 transitions. [2020-09-25 05:32:29,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 05:32:29,400 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:29,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:29,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:32:29,400 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:32:29,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:29,401 INFO L82 PathProgramCache]: Analyzing trace with hash 684663316, now seen corresponding path program 1 times [2020-09-25 05:32:29,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:29,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1092747] [2020-09-25 05:32:29,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:29,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:29,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:29,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:29,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:32:29,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:32:29,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-09-25 05:32:29,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:29,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:29,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:29,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 05:32:29,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:32:29,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:29,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:29,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:29,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:29,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:29,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:29,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:32:29,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:29,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:29,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:29,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:29,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:29,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:29,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:29,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1092747] [2020-09-25 05:32:29,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:29,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:32:29,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466887333] [2020-09-25 05:32:29,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:32:29,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:29,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:32:29,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:32:29,775 INFO L87 Difference]: Start difference. First operand 164 states and 174 transitions. Second operand 4 states. [2020-09-25 05:32:30,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:30,064 INFO L93 Difference]: Finished difference Result 170 states and 180 transitions. [2020-09-25 05:32:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:32:30,065 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-09-25 05:32:30,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:30,068 INFO L225 Difference]: With dead ends: 170 [2020-09-25 05:32:30,068 INFO L226 Difference]: Without dead ends: 165 [2020-09-25 05:32:30,070 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 [2020-09-25 05:32:30,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-09-25 05:32:30,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2020-09-25 05:32:30,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-09-25 05:32:30,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 175 transitions. [2020-09-25 05:32:30,086 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 175 transitions. Word has length 24 [2020-09-25 05:32:30,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:30,087 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 175 transitions. [2020-09-25 05:32:30,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:32:30,087 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 175 transitions. [2020-09-25 05:32:30,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-25 05:32:30,088 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:30,089 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:30,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:32:30,089 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:32:30,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:30,090 INFO L82 PathProgramCache]: Analyzing trace with hash -265499727, now seen corresponding path program 1 times [2020-09-25 05:32:30,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:30,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977210410] [2020-09-25 05:32:30,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:30,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:30,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:30,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:30,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 05:32:30,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:32:30,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-09-25 05:32:30,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:30,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:30,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:32:30,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 05:32:30,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:32:30,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:30,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:30,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:30,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:30,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:30,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:30,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:32:30,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:30,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:30,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:30,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:30,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:30,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:30,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:30,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977210410] [2020-09-25 05:32:30,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:30,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:32:30,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626501471] [2020-09-25 05:32:30,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:32:30,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:30,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:32:30,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:32:30,591 INFO L87 Difference]: Start difference. First operand 165 states and 175 transitions. Second operand 6 states. [2020-09-25 05:32:31,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:31,008 INFO L93 Difference]: Finished difference Result 267 states and 284 transitions. [2020-09-25 05:32:31,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 05:32:31,009 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-09-25 05:32:31,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:31,011 INFO L225 Difference]: With dead ends: 267 [2020-09-25 05:32:31,012 INFO L226 Difference]: Without dead ends: 262 [2020-09-25 05:32:31,012 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:32:31,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-09-25 05:32:31,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 170. [2020-09-25 05:32:31,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-09-25 05:32:31,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 181 transitions. [2020-09-25 05:32:31,050 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 181 transitions. Word has length 26 [2020-09-25 05:32:31,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:31,051 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 181 transitions. [2020-09-25 05:32:31,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:32:31,051 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 181 transitions. [2020-09-25 05:32:31,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 05:32:31,053 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:31,053 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:31,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:32:31,054 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:32:31,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:31,054 INFO L82 PathProgramCache]: Analyzing trace with hash 72562886, now seen corresponding path program 1 times [2020-09-25 05:32:31,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:31,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [117946132] [2020-09-25 05:32:31,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:31,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:31,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:31,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:31,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:31,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:31,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 05:32:31,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:32:31,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 471 [2020-09-25 05:32:31,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:31,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:31,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:32:31,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:32:31,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 05:32:31,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:31,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:31,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:31,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:31,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:31,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:31,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:31,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:32:31,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:31,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:31,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:31,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:31,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:31,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:31,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:31,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [117946132] [2020-09-25 05:32:31,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:31,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:32:31,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123364208] [2020-09-25 05:32:31,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:32:31,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:31,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:32:31,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:32:31,642 INFO L87 Difference]: Start difference. First operand 170 states and 181 transitions. Second operand 6 states. [2020-09-25 05:32:31,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:31,986 INFO L93 Difference]: Finished difference Result 279 states and 297 transitions. [2020-09-25 05:32:31,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 05:32:31,987 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-09-25 05:32:31,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:31,989 INFO L225 Difference]: With dead ends: 279 [2020-09-25 05:32:31,990 INFO L226 Difference]: Without dead ends: 247 [2020-09-25 05:32:31,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:32:31,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2020-09-25 05:32:32,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 169. [2020-09-25 05:32:32,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-09-25 05:32:32,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 180 transitions. [2020-09-25 05:32:32,018 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 180 transitions. Word has length 32 [2020-09-25 05:32:32,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:32,019 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 180 transitions. [2020-09-25 05:32:32,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:32:32,019 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 180 transitions. [2020-09-25 05:32:32,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 05:32:32,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:32,020 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:32,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:32:32,023 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:32:32,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:32,024 INFO L82 PathProgramCache]: Analyzing trace with hash -111525919, now seen corresponding path program 1 times [2020-09-25 05:32:32,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:32,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1348474583] [2020-09-25 05:32:32,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:32,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:32,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:32,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:33,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:33,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 05:32:33,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:32:33,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1416 [2020-09-25 05:32:33,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:33,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:33,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:32:33,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-25 05:32:33,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:32:33,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:32:33,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:33,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:33,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:33,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:33,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:33,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:33,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:32:33,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:33,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:33,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:33,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:33,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:33,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:33,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:33,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1348474583] [2020-09-25 05:32:33,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:33,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 05:32:33,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191921801] [2020-09-25 05:32:33,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 05:32:33,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:33,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 05:32:33,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:32:33,575 INFO L87 Difference]: Start difference. First operand 169 states and 180 transitions. Second operand 8 states. [2020-09-25 05:32:34,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:34,060 INFO L93 Difference]: Finished difference Result 260 states and 277 transitions. [2020-09-25 05:32:34,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:32:34,060 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2020-09-25 05:32:34,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:34,063 INFO L225 Difference]: With dead ends: 260 [2020-09-25 05:32:34,064 INFO L226 Difference]: Without dead ends: 255 [2020-09-25 05:32:34,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-09-25 05:32:34,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-09-25 05:32:34,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 158. [2020-09-25 05:32:34,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-09-25 05:32:34,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 168 transitions. [2020-09-25 05:32:34,083 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 168 transitions. Word has length 33 [2020-09-25 05:32:34,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:34,084 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 168 transitions. [2020-09-25 05:32:34,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 05:32:34,084 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 168 transitions. [2020-09-25 05:32:34,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 05:32:34,091 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:34,091 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:34,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:32:34,092 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:32:34,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:34,092 INFO L82 PathProgramCache]: Analyzing trace with hash 2123188648, now seen corresponding path program 1 times [2020-09-25 05:32:34,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:34,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1768319193] [2020-09-25 05:32:34,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:34,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:34,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:34,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:34,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:34,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 05:32:34,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:32:34,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 493 [2020-09-25 05:32:34,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:34,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:34,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:32:34,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 05:32:34,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:32:34,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:34,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:34,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:34,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:34,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:34,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:34,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:32:34,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:34,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:34,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:34,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:34,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:34,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:34,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:34,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1768319193] [2020-09-25 05:32:34,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:34,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 05:32:34,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737131170] [2020-09-25 05:32:34,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:32:34,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:34,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:32:34,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:32:34,672 INFO L87 Difference]: Start difference. First operand 158 states and 168 transitions. Second operand 7 states. [2020-09-25 05:32:35,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:35,155 INFO L93 Difference]: Finished difference Result 242 states and 258 transitions. [2020-09-25 05:32:35,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 05:32:35,155 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-09-25 05:32:35,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:35,159 INFO L225 Difference]: With dead ends: 242 [2020-09-25 05:32:35,160 INFO L226 Difference]: Without dead ends: 238 [2020-09-25 05:32:35,160 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-09-25 05:32:35,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-09-25 05:32:35,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 154. [2020-09-25 05:32:35,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-25 05:32:35,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 164 transitions. [2020-09-25 05:32:35,170 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 164 transitions. Word has length 36 [2020-09-25 05:32:35,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:35,171 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 164 transitions. [2020-09-25 05:32:35,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:32:35,171 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 164 transitions. [2020-09-25 05:32:35,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 05:32:35,174 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:35,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:35,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 05:32:35,175 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:32:35,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:35,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1785983955, now seen corresponding path program 1 times [2020-09-25 05:32:35,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:35,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1342298837] [2020-09-25 05:32:35,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:35,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:35,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:35,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:35,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:35,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:35,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:35,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 05:32:35,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:32:35,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 486 [2020-09-25 05:32:35,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:35,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:35,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:35,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-25 05:32:35,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:32:35,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:35,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:35,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:35,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:35,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:35,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:35,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:35,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:32:35,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:35,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:35,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:35,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:35,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:35,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:35,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:35,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1342298837] [2020-09-25 05:32:35,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:35,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:32:35,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287656373] [2020-09-25 05:32:35,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:32:35,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:35,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:32:35,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:32:35,736 INFO L87 Difference]: Start difference. First operand 154 states and 164 transitions. Second operand 4 states. [2020-09-25 05:32:35,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:35,958 INFO L93 Difference]: Finished difference Result 196 states and 210 transitions. [2020-09-25 05:32:35,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:32:35,959 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-09-25 05:32:35,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:35,960 INFO L225 Difference]: With dead ends: 196 [2020-09-25 05:32:35,960 INFO L226 Difference]: Without dead ends: 194 [2020-09-25 05:32:35,961 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 [2020-09-25 05:32:35,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-09-25 05:32:35,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 156. [2020-09-25 05:32:35,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-09-25 05:32:35,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 167 transitions. [2020-09-25 05:32:35,969 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 167 transitions. Word has length 40 [2020-09-25 05:32:35,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:35,969 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 167 transitions. [2020-09-25 05:32:35,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:32:35,970 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 167 transitions. [2020-09-25 05:32:35,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-25 05:32:35,972 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:35,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:35,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 05:32:35,973 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:32:35,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:35,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1657004682, now seen corresponding path program 1 times [2020-09-25 05:32:35,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:35,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1290344305] [2020-09-25 05:32:35,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:35,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:36,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:36,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:36,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:36,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:36,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:36,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:36,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 05:32:36,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:32:36,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 792 [2020-09-25 05:32:36,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:36,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:36,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:36,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-25 05:32:36,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:32:36,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:32:36,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:36,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:36,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:36,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:36,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:36,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:32:36,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:36,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:36,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:36,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:36,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:36,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:36,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:36,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1290344305] [2020-09-25 05:32:36,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:36,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:32:36,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35285878] [2020-09-25 05:32:36,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:32:36,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:36,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:32:36,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:32:36,829 INFO L87 Difference]: Start difference. First operand 156 states and 167 transitions. Second operand 4 states. [2020-09-25 05:32:37,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:37,070 INFO L93 Difference]: Finished difference Result 156 states and 167 transitions. [2020-09-25 05:32:37,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:32:37,070 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-09-25 05:32:37,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:37,072 INFO L225 Difference]: With dead ends: 156 [2020-09-25 05:32:37,072 INFO L226 Difference]: Without dead ends: 154 [2020-09-25 05:32:37,073 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 [2020-09-25 05:32:37,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-09-25 05:32:37,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-09-25 05:32:37,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-25 05:32:37,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 165 transitions. [2020-09-25 05:32:37,082 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 165 transitions. Word has length 42 [2020-09-25 05:32:37,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:37,082 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 165 transitions. [2020-09-25 05:32:37,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:32:37,082 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 165 transitions. [2020-09-25 05:32:37,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-25 05:32:37,083 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:37,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:37,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 05:32:37,084 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:32:37,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:37,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1175512125, now seen corresponding path program 1 times [2020-09-25 05:32:37,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:37,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [372676462] [2020-09-25 05:32:37,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:37,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:37,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:37,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:37,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:37,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:38,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:38,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 05:32:38,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:32:38,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1025 [2020-09-25 05:32:38,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:38,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:38,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:32:38,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 05:32:38,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 05:32:38,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:32:38,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:38,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:38,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:38,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:38,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:38,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:32:38,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:38,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:38,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:38,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:38,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:38,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:38,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:38,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [372676462] [2020-09-25 05:32:38,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:38,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 05:32:38,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379460257] [2020-09-25 05:32:38,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:32:38,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:38,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:32:38,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:32:38,225 INFO L87 Difference]: Start difference. First operand 154 states and 165 transitions. Second operand 7 states. [2020-09-25 05:32:38,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:38,825 INFO L93 Difference]: Finished difference Result 354 states and 382 transitions. [2020-09-25 05:32:38,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:32:38,825 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2020-09-25 05:32:38,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:38,827 INFO L225 Difference]: With dead ends: 354 [2020-09-25 05:32:38,827 INFO L226 Difference]: Without dead ends: 283 [2020-09-25 05:32:38,828 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-09-25 05:32:38,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-09-25 05:32:38,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 178. [2020-09-25 05:32:38,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-09-25 05:32:38,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 191 transitions. [2020-09-25 05:32:38,837 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 191 transitions. Word has length 46 [2020-09-25 05:32:38,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:38,838 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 191 transitions. [2020-09-25 05:32:38,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:32:38,838 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 191 transitions. [2020-09-25 05:32:38,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-25 05:32:38,839 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:38,839 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:38,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 05:32:38,839 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:32:38,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:38,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1283803554, now seen corresponding path program 1 times [2020-09-25 05:32:38,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:38,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1599464980] [2020-09-25 05:32:38,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:38,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:38,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:38,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:39,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:39,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:39,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 05:32:39,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:32:39,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 726 [2020-09-25 05:32:39,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:39,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:39,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:39,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-09-25 05:32:39,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:32:39,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:39,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:39,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:39,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:39,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:39,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:39,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:39,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:32:39,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:39,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:39,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:39,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:39,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:39,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:39,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:39,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1599464980] [2020-09-25 05:32:39,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:39,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:32:39,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105863141] [2020-09-25 05:32:39,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:32:39,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:39,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:32:39,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:32:39,623 INFO L87 Difference]: Start difference. First operand 178 states and 191 transitions. Second operand 4 states. [2020-09-25 05:32:39,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:39,877 INFO L93 Difference]: Finished difference Result 184 states and 197 transitions. [2020-09-25 05:32:39,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:32:39,878 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 50 [2020-09-25 05:32:39,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:39,879 INFO L225 Difference]: With dead ends: 184 [2020-09-25 05:32:39,879 INFO L226 Difference]: Without dead ends: 179 [2020-09-25 05:32:39,880 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 [2020-09-25 05:32:39,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-09-25 05:32:39,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2020-09-25 05:32:39,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-09-25 05:32:39,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 192 transitions. [2020-09-25 05:32:39,888 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 192 transitions. Word has length 50 [2020-09-25 05:32:39,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:39,889 INFO L479 AbstractCegarLoop]: Abstraction has 179 states and 192 transitions. [2020-09-25 05:32:39,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:32:39,890 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 192 transitions. [2020-09-25 05:32:39,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 05:32:39,890 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:39,891 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:39,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 05:32:39,891 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:32:39,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:39,891 INFO L82 PathProgramCache]: Analyzing trace with hash 109930128, now seen corresponding path program 1 times [2020-09-25 05:32:39,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:39,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913981258] [2020-09-25 05:32:39,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:39,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:39,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:40,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:40,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:40,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:40,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:40,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:40,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:40,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:41,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:41,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 05:32:41,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 05:32:41,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1208 [2020-09-25 05:32:41,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:41,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:41,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:41,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-25 05:32:41,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:32:41,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:41,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:41,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:41,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:41,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:41,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:41,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:32:41,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:41,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:41,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:41,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:41,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:41,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:41,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 05:32:41,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913981258] [2020-09-25 05:32:41,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:41,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:32:41,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485615167] [2020-09-25 05:32:41,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:32:41,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:41,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:32:41,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:32:41,184 INFO L87 Difference]: Start difference. First operand 179 states and 192 transitions. Second operand 4 states. [2020-09-25 05:32:41,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:41,427 INFO L93 Difference]: Finished difference Result 188 states and 202 transitions. [2020-09-25 05:32:41,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:32:41,427 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-25 05:32:41,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:41,429 INFO L225 Difference]: With dead ends: 188 [2020-09-25 05:32:41,429 INFO L226 Difference]: Without dead ends: 186 [2020-09-25 05:32:41,429 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 [2020-09-25 05:32:41,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-09-25 05:32:41,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 177. [2020-09-25 05:32:41,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-09-25 05:32:41,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 190 transitions. [2020-09-25 05:32:41,440 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 190 transitions. Word has length 51 [2020-09-25 05:32:41,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:41,440 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 190 transitions. [2020-09-25 05:32:41,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:32:41,441 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 190 transitions. [2020-09-25 05:32:41,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 05:32:41,441 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:41,442 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:41,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 05:32:41,442 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:32:41,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:41,442 INFO L82 PathProgramCache]: Analyzing trace with hash 2118419099, now seen corresponding path program 1 times [2020-09-25 05:32:41,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:41,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230440529] [2020-09-25 05:32:41,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:41,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:41,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:41,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:41,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:42,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:42,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 05:32:42,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:32:42,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 903 [2020-09-25 05:32:42,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:42,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:32:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-25 05:32:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:32:42,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:42,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:42,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:42,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:42,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:42,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:42,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:32:42,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:42,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:42,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:42,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:42,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:42,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:42,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:42,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230440529] [2020-09-25 05:32:42,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:42,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:32:42,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144669719] [2020-09-25 05:32:42,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:32:42,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:42,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:32:42,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:32:42,476 INFO L87 Difference]: Start difference. First operand 177 states and 190 transitions. Second operand 6 states. [2020-09-25 05:32:42,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:42,816 INFO L93 Difference]: Finished difference Result 204 states and 219 transitions. [2020-09-25 05:32:42,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 05:32:42,817 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-09-25 05:32:42,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:42,818 INFO L225 Difference]: With dead ends: 204 [2020-09-25 05:32:42,818 INFO L226 Difference]: Without dead ends: 199 [2020-09-25 05:32:42,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:32:42,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-09-25 05:32:42,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 182. [2020-09-25 05:32:42,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-25 05:32:42,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 196 transitions. [2020-09-25 05:32:42,832 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 196 transitions. Word has length 52 [2020-09-25 05:32:42,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:42,833 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 196 transitions. [2020-09-25 05:32:42,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:32:42,833 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 196 transitions. [2020-09-25 05:32:42,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 05:32:42,834 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:42,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:42,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 05:32:42,834 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:32:42,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:42,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1565892499, now seen corresponding path program 1 times [2020-09-25 05:32:42,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:42,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [47140925] [2020-09-25 05:32:42,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:42,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:43,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:43,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:43,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:45,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:45,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:45,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 05:32:45,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:32:45,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2621 [2020-09-25 05:32:45,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:45,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:45,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 05:32:45,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-25 05:32:45,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 05:32:45,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:45,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:45,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:45,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:45,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:45,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:45,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:32:45,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:45,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:45,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:45,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:45,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:45,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:32:45,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:45,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [47140925] [2020-09-25 05:32:45,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:45,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 05:32:45,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417972725] [2020-09-25 05:32:45,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 05:32:45,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:45,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 05:32:45,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-25 05:32:45,817 INFO L87 Difference]: Start difference. First operand 182 states and 196 transitions. Second operand 12 states. [2020-09-25 05:32:47,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:47,021 INFO L93 Difference]: Finished difference Result 491 states and 528 transitions. [2020-09-25 05:32:47,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 05:32:47,022 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2020-09-25 05:32:47,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:47,029 INFO L225 Difference]: With dead ends: 491 [2020-09-25 05:32:47,029 INFO L226 Difference]: Without dead ends: 488 [2020-09-25 05:32:47,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2020-09-25 05:32:47,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2020-09-25 05:32:47,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 208. [2020-09-25 05:32:47,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-09-25 05:32:47,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 225 transitions. [2020-09-25 05:32:47,046 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 225 transitions. Word has length 53 [2020-09-25 05:32:47,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:47,047 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 225 transitions. [2020-09-25 05:32:47,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 05:32:47,047 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 225 transitions. [2020-09-25 05:32:47,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-25 05:32:47,048 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:47,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:47,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 05:32:47,048 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:32:47,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:47,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1416624714, now seen corresponding path program 1 times [2020-09-25 05:32:47,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:47,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1975933006] [2020-09-25 05:32:47,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:47,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:47,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:47,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:47,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:50,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:50,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:51,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:51,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:52,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:52,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 05:32:52,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 05:32:52,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 05:32:52,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:52,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:52,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:32:52,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-25 05:32:52,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 05:32:52,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:52,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:52,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:52,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:52,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:52,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:52,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:52,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:32:52,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:52,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:52,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:52,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:52,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:52,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:32:52,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:52,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1975933006] [2020-09-25 05:32:52,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:52,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 05:32:52,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819217658] [2020-09-25 05:32:52,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:32:52,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:52,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:32:52,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:32:52,286 INFO L87 Difference]: Start difference. First operand 208 states and 225 transitions. Second operand 10 states. [2020-09-25 05:32:53,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:53,428 INFO L93 Difference]: Finished difference Result 363 states and 393 transitions. [2020-09-25 05:32:53,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 05:32:53,429 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 55 [2020-09-25 05:32:53,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:53,432 INFO L225 Difference]: With dead ends: 363 [2020-09-25 05:32:53,432 INFO L226 Difference]: Without dead ends: 360 [2020-09-25 05:32:53,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2020-09-25 05:32:53,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-09-25 05:32:53,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 202. [2020-09-25 05:32:53,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-09-25 05:32:53,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 219 transitions. [2020-09-25 05:32:53,444 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 219 transitions. Word has length 55 [2020-09-25 05:32:53,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:53,444 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 219 transitions. [2020-09-25 05:32:53,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 05:32:53,444 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 219 transitions. [2020-09-25 05:32:53,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-25 05:32:53,445 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:53,445 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:53,446 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 05:32:53,446 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:32:53,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:53,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1523074089, now seen corresponding path program 1 times [2020-09-25 05:32:53,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:53,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1180388034] [2020-09-25 05:32:53,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:53,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:53,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:53,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:53,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:53,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:53,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:54,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:54,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:55,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:55,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 05:32:55,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 05:32:55,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1552 [2020-09-25 05:32:55,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:55,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:55,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:32:55,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 05:32:55,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 05:32:55,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:32:55,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:55,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:55,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:55,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:55,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:55,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:32:55,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:55,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:55,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:55,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:55,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:55,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:32:55,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 05:32:55,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1180388034] [2020-09-25 05:32:55,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:55,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:32:55,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952529222] [2020-09-25 05:32:55,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:32:55,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:55,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:32:55,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:32:55,098 INFO L87 Difference]: Start difference. First operand 202 states and 219 transitions. Second operand 6 states. [2020-09-25 05:32:55,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:55,550 INFO L93 Difference]: Finished difference Result 287 states and 311 transitions. [2020-09-25 05:32:55,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:32:55,550 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-09-25 05:32:55,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:55,552 INFO L225 Difference]: With dead ends: 287 [2020-09-25 05:32:55,552 INFO L226 Difference]: Without dead ends: 259 [2020-09-25 05:32:55,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:32:55,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-09-25 05:32:55,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 240. [2020-09-25 05:32:55,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-25 05:32:55,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 265 transitions. [2020-09-25 05:32:55,572 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 265 transitions. Word has length 55 [2020-09-25 05:32:55,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:55,572 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 265 transitions. [2020-09-25 05:32:55,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:32:55,573 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 265 transitions. [2020-09-25 05:32:55,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 05:32:55,573 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:55,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:55,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 05:32:55,574 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:32:55,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:55,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1636675303, now seen corresponding path program 1 times [2020-09-25 05:32:55,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:55,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1022121096] [2020-09-25 05:32:55,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:55,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:55,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:56,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:56,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:56,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:58,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:58,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 05:32:58,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:32:58,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3345 [2020-09-25 05:32:58,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:58,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:32:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 05:32:58,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:32:58,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:59,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:59,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:59,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:59,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:59,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:59,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:32:59,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:59,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:59,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:59,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:59,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:59,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:32:59,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:59,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1022121096] [2020-09-25 05:32:59,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:59,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 05:32:59,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74099027] [2020-09-25 05:32:59,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:32:59,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:59,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:32:59,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:32:59,555 INFO L87 Difference]: Start difference. First operand 240 states and 265 transitions. Second operand 10 states. [2020-09-25 05:33:00,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:33:00,699 INFO L93 Difference]: Finished difference Result 376 states and 411 transitions. [2020-09-25 05:33:00,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 05:33:00,700 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2020-09-25 05:33:00,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:33:00,702 INFO L225 Difference]: With dead ends: 376 [2020-09-25 05:33:00,702 INFO L226 Difference]: Without dead ends: 373 [2020-09-25 05:33:00,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2020-09-25 05:33:00,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2020-09-25 05:33:00,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 244. [2020-09-25 05:33:00,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-09-25 05:33:00,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 269 transitions. [2020-09-25 05:33:00,715 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 269 transitions. Word has length 57 [2020-09-25 05:33:00,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:33:00,716 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 269 transitions. [2020-09-25 05:33:00,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 05:33:00,716 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 269 transitions. [2020-09-25 05:33:00,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 05:33:00,717 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:33:00,717 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:33:00,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 05:33:00,718 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:33:00,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:33:00,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1650505471, now seen corresponding path program 1 times [2020-09-25 05:33:00,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:33:00,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733353944] [2020-09-25 05:33:00,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:33:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:00,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:00,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:00,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:00,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:01,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:01,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:01,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 05:33:01,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:33:01,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 855 [2020-09-25 05:33:01,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:01,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:01,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:33:01,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 05:33:01,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 05:33:01,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:01,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:33:01,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:01,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:01,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:01,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:33:01,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:01,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:33:01,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:01,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:01,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:01,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:01,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:01,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:01,634 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 05:33:01,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733353944] [2020-09-25 05:33:01,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:33:01,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:33:01,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818187888] [2020-09-25 05:33:01,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:33:01,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:33:01,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:33:01,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:33:01,637 INFO L87 Difference]: Start difference. First operand 244 states and 269 transitions. Second operand 6 states. [2020-09-25 05:33:02,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:33:02,085 INFO L93 Difference]: Finished difference Result 439 states and 480 transitions. [2020-09-25 05:33:02,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:33:02,086 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-09-25 05:33:02,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:33:02,087 INFO L225 Difference]: With dead ends: 439 [2020-09-25 05:33:02,088 INFO L226 Difference]: Without dead ends: 260 [2020-09-25 05:33:02,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:33:02,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-09-25 05:33:02,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 244. [2020-09-25 05:33:02,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-09-25 05:33:02,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 268 transitions. [2020-09-25 05:33:02,110 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 268 transitions. Word has length 57 [2020-09-25 05:33:02,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:33:02,111 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 268 transitions. [2020-09-25 05:33:02,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:33:02,111 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 268 transitions. [2020-09-25 05:33:02,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-25 05:33:02,112 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:33:02,112 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:33:02,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-25 05:33:02,112 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:33:02,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:33:02,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1792411396, now seen corresponding path program 1 times [2020-09-25 05:33:02,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:33:02,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101854368] [2020-09-25 05:33:02,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:33:02,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:02,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:02,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:02,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-25 05:33:02,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:02,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 05:33:02,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:02,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:02,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:33:02,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 05:33:02,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 05:33:02,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:02,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:33:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:02,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:02,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:02,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:33:02,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:02,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:33:02,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:02,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:02,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:02,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:02,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:02,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:02,418 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:33:02,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101854368] [2020-09-25 05:33:02,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:33:02,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 05:33:02,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620874913] [2020-09-25 05:33:02,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:33:02,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:33:02,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:33:02,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:33:02,421 INFO L87 Difference]: Start difference. First operand 244 states and 268 transitions. Second operand 7 states. [2020-09-25 05:33:02,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:33:02,935 INFO L93 Difference]: Finished difference Result 394 states and 430 transitions. [2020-09-25 05:33:02,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 05:33:02,935 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 59 [2020-09-25 05:33:02,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:33:02,937 INFO L225 Difference]: With dead ends: 394 [2020-09-25 05:33:02,937 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 05:33:02,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:33:02,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 05:33:02,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 245. [2020-09-25 05:33:02,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-25 05:33:02,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 267 transitions. [2020-09-25 05:33:02,956 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 267 transitions. Word has length 59 [2020-09-25 05:33:02,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:33:02,956 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 267 transitions. [2020-09-25 05:33:02,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:33:02,956 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 267 transitions. [2020-09-25 05:33:02,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 05:33:02,958 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:33:02,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:33:02,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-25 05:33:02,958 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:33:02,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:33:02,959 INFO L82 PathProgramCache]: Analyzing trace with hash -2093992957, now seen corresponding path program 1 times [2020-09-25 05:33:02,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:33:02,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [248639503] [2020-09-25 05:33:02,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:33:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:02,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:03,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:04,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:04,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 05:33:04,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:33:04,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1375 [2020-09-25 05:33:04,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:04,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:04,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:33:04,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 05:33:04,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:33:04,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:04,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:33:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:04,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:04,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:04,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:33:04,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:04,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:33:04,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:04,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:04,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:04,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:04,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:04,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:04,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:33:04,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [248639503] [2020-09-25 05:33:04,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:33:04,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 05:33:04,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247125410] [2020-09-25 05:33:04,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 05:33:04,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:33:04,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 05:33:04,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:33:04,486 INFO L87 Difference]: Start difference. First operand 245 states and 267 transitions. Second operand 8 states. [2020-09-25 05:33:04,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:33:04,917 INFO L93 Difference]: Finished difference Result 262 states and 285 transitions. [2020-09-25 05:33:04,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:33:04,921 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-09-25 05:33:04,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:33:04,922 INFO L225 Difference]: With dead ends: 262 [2020-09-25 05:33:04,923 INFO L226 Difference]: Without dead ends: 257 [2020-09-25 05:33:04,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-09-25 05:33:04,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-09-25 05:33:04,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 234. [2020-09-25 05:33:04,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-25 05:33:04,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 255 transitions. [2020-09-25 05:33:04,934 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 255 transitions. Word has length 61 [2020-09-25 05:33:04,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:33:04,934 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 255 transitions. [2020-09-25 05:33:04,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 05:33:04,934 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 255 transitions. [2020-09-25 05:33:04,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 05:33:04,935 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:33:04,935 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:33:04,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-25 05:33:04,937 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:33:04,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:33:04,938 INFO L82 PathProgramCache]: Analyzing trace with hash -984681049, now seen corresponding path program 1 times [2020-09-25 05:33:04,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:33:04,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1311148500] [2020-09-25 05:33:04,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:33:04,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:04,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:05,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:05,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:05,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:07,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:07,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:07,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:08,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:08,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:08,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:09,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:09,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 05:33:09,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 05:33:09,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 05:33:09,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:09,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:09,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:33:09,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-25 05:33:09,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 05:33:09,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:10,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:33:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:10,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:10,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:10,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:33:10,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:10,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:33:10,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:10,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:10,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:10,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 05:33:10,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1311148500] [2020-09-25 05:33:10,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:33:10,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 05:33:10,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238474832] [2020-09-25 05:33:10,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 05:33:10,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:33:10,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 05:33:10,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:33:10,172 INFO L87 Difference]: Start difference. First operand 234 states and 255 transitions. Second operand 11 states. [2020-09-25 05:33:11,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:33:11,136 INFO L93 Difference]: Finished difference Result 391 states and 419 transitions. [2020-09-25 05:33:11,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 05:33:11,137 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 62 [2020-09-25 05:33:11,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:33:11,139 INFO L225 Difference]: With dead ends: 391 [2020-09-25 05:33:11,139 INFO L226 Difference]: Without dead ends: 388 [2020-09-25 05:33:11,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2020-09-25 05:33:11,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-09-25 05:33:11,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 301. [2020-09-25 05:33:11,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-09-25 05:33:11,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 332 transitions. [2020-09-25 05:33:11,158 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 332 transitions. Word has length 62 [2020-09-25 05:33:11,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:33:11,158 INFO L479 AbstractCegarLoop]: Abstraction has 301 states and 332 transitions. [2020-09-25 05:33:11,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 05:33:11,159 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 332 transitions. [2020-09-25 05:33:11,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 05:33:11,159 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:33:11,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:33:11,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-25 05:33:11,160 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:33:11,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:33:11,160 INFO L82 PathProgramCache]: Analyzing trace with hash -649286859, now seen corresponding path program 1 times [2020-09-25 05:33:11,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:33:11,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1215119574] [2020-09-25 05:33:11,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:33:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:11,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:11,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:11,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:11,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 05:33:11,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:33:11,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-25 05:33:11,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:11,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:11,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:33:11,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-25 05:33:11,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 05:33:11,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:11,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:33:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:11,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:11,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:11,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:33:11,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:11,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:33:11,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:11,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:11,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:11,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:11,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:11,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:11,364 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:33:11,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1215119574] [2020-09-25 05:33:11,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:33:11,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:33:11,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686035934] [2020-09-25 05:33:11,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:33:11,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:33:11,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:33:11,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:33:11,366 INFO L87 Difference]: Start difference. First operand 301 states and 332 transitions. Second operand 4 states. [2020-09-25 05:33:11,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:33:11,606 INFO L93 Difference]: Finished difference Result 380 states and 426 transitions. [2020-09-25 05:33:11,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:33:11,607 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 64 [2020-09-25 05:33:11,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:33:11,609 INFO L225 Difference]: With dead ends: 380 [2020-09-25 05:33:11,609 INFO L226 Difference]: Without dead ends: 378 [2020-09-25 05:33:11,610 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 [2020-09-25 05:33:11,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2020-09-25 05:33:11,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 361. [2020-09-25 05:33:11,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-09-25 05:33:11,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 403 transitions. [2020-09-25 05:33:11,628 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 403 transitions. Word has length 64 [2020-09-25 05:33:11,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:33:11,628 INFO L479 AbstractCegarLoop]: Abstraction has 361 states and 403 transitions. [2020-09-25 05:33:11,628 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:33:11,628 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 403 transitions. [2020-09-25 05:33:11,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 05:33:11,630 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:33:11,630 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:33:11,630 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-25 05:33:11,630 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:33:11,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:33:11,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1878952235, now seen corresponding path program 1 times [2020-09-25 05:33:11,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:33:11,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [170302260] [2020-09-25 05:33:11,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:33:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:11,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:11,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:11,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 05:33:11,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:11,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-25 05:33:11,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:11,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:11,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:33:11,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 05:33:11,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:33:11,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:11,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:33:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:11,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:11,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:11,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:33:11,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:11,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:33:11,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:11,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:11,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:11,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:11,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:11,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:11,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:33:11,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [170302260] [2020-09-25 05:33:11,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:33:11,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:33:11,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765097087] [2020-09-25 05:33:11,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:33:11,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:33:11,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:33:11,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:33:11,767 INFO L87 Difference]: Start difference. First operand 361 states and 403 transitions. Second operand 4 states. [2020-09-25 05:33:12,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:33:12,022 INFO L93 Difference]: Finished difference Result 597 states and 674 transitions. [2020-09-25 05:33:12,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:33:12,022 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 64 [2020-09-25 05:33:12,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:33:12,024 INFO L225 Difference]: With dead ends: 597 [2020-09-25 05:33:12,025 INFO L226 Difference]: Without dead ends: 401 [2020-09-25 05:33:12,026 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 [2020-09-25 05:33:12,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-09-25 05:33:12,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 345. [2020-09-25 05:33:12,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-09-25 05:33:12,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 386 transitions. [2020-09-25 05:33:12,041 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 386 transitions. Word has length 64 [2020-09-25 05:33:12,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:33:12,042 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 386 transitions. [2020-09-25 05:33:12,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:33:12,042 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 386 transitions. [2020-09-25 05:33:12,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 05:33:12,046 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:33:12,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:33:12,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-09-25 05:33:12,046 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:33:12,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:33:12,047 INFO L82 PathProgramCache]: Analyzing trace with hash 153887850, now seen corresponding path program 1 times [2020-09-25 05:33:12,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:33:12,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [174113328] [2020-09-25 05:33:12,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:33:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:12,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:12,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:12,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:15,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:16,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:16,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:17,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:17,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 05:33:17,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:33:17,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 05:33:17,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:17,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:17,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:33:17,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-25 05:33:17,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 05:33:17,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:17,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:33:17,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:17,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:17,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:17,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:33:17,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:17,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:33:17,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:17,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:17,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:17,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:17,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:17,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:17,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 05:33:17,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [174113328] [2020-09-25 05:33:17,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:33:17,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 05:33:17,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288165633] [2020-09-25 05:33:17,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:33:17,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:33:17,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:33:17,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:33:17,277 INFO L87 Difference]: Start difference. First operand 345 states and 386 transitions. Second operand 9 states. [2020-09-25 05:33:17,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:33:17,972 INFO L93 Difference]: Finished difference Result 406 states and 447 transitions. [2020-09-25 05:33:17,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 05:33:17,973 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-09-25 05:33:17,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:33:17,976 INFO L225 Difference]: With dead ends: 406 [2020-09-25 05:33:17,976 INFO L226 Difference]: Without dead ends: 403 [2020-09-25 05:33:17,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2020-09-25 05:33:17,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2020-09-25 05:33:17,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 273. [2020-09-25 05:33:17,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-09-25 05:33:17,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 302 transitions. [2020-09-25 05:33:17,989 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 302 transitions. Word has length 64 [2020-09-25 05:33:17,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:33:17,990 INFO L479 AbstractCegarLoop]: Abstraction has 273 states and 302 transitions. [2020-09-25 05:33:17,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:33:17,990 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 302 transitions. [2020-09-25 05:33:17,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-25 05:33:17,991 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:33:17,991 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:33:17,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-09-25 05:33:17,991 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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]=== [2020-09-25 05:33:17,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:33:17,992 INFO L82 PathProgramCache]: Analyzing trace with hash 103376083, now seen corresponding path program 1 times [2020-09-25 05:33:17,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:33:17,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050711013] [2020-09-25 05:33:17,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:33:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:18,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:18,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:18,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:18,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking...