/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:41:05,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:41:05,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:41:05,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:41:05,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:41:05,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:41:05,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:41:05,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:41:05,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:41:05,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:41:05,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:41:05,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:41:05,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:41:05,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:41:05,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:41:05,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:41:05,603 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:41:05,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:41:05,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:41:05,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:41:05,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:41:05,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:41:05,613 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:41:05,614 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:41:05,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:41:05,617 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:41:05,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:41:05,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:41:05,619 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:41:05,620 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:41:05,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:41:05,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:41:05,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:41:05,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:41:05,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:41:05,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:41:05,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:41:05,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:41:05,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:41:05,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:41:05,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:41:05,632 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 06:41:05,659 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:41:05,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:41:05,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:41:05,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:41:05,661 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:41:05,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:41:05,661 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:41:05,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:41:05,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:41:05,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:41:05,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:41:05,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:41:05,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:41:05,662 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:41:05,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:41:05,663 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:41:05,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:41:05,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:41:05,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:41:05,664 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:41:05,664 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:41:05,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:41:05,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:41:05,665 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:41:05,665 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:41:05,665 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:41:05,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:41:05,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:41:05,666 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:41:05,666 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:41:06,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:41:06,193 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:41:06,198 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:41:06,200 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:41:06,202 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:41:06,203 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-01-2.i [2020-09-25 06:41:06,293 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/18c079340/9fb32e99faea4e40ac29ee6bd2e5bfc1/FLAG0f7366544 [2020-09-25 06:41:06,950 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:41:06,951 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/sll-01-2.i [2020-09-25 06:41:06,976 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/18c079340/9fb32e99faea4e40ac29ee6bd2e5bfc1/FLAG0f7366544 [2020-09-25 06:41:07,191 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/18c079340/9fb32e99faea4e40ac29ee6bd2e5bfc1 [2020-09-25 06:41:07,204 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:41:07,209 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:41:07,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:41:07,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:41:07,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:41:07,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:41:07" (1/1) ... [2020-09-25 06:41:07,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61445f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:07, skipping insertion in model container [2020-09-25 06:41:07,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:41:07" (1/1) ... [2020-09-25 06:41:07,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:41:07,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:41:07,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:41:07,831 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:41:07,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:41:07,949 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:41:07,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:07 WrapperNode [2020-09-25 06:41:07,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:41:07,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:41:07,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:41:07,951 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:41:07,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:07" (1/1) ... [2020-09-25 06:41:07,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:07" (1/1) ... [2020-09-25 06:41:07,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:07" (1/1) ... [2020-09-25 06:41:07,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:07" (1/1) ... [2020-09-25 06:41:08,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:07" (1/1) ... [2020-09-25 06:41:08,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:07" (1/1) ... [2020-09-25 06:41:08,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:07" (1/1) ... [2020-09-25 06:41:08,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:41:08,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:41:08,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:41:08,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:41:08,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:41:08,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:41:08,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:41:08,109 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:41:08,109 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 06:41:08,109 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 06:41:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 06:41:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 06:41:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 06:41:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 06:41:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 06:41:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 06:41:08,111 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 06:41:08,111 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 06:41:08,111 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 06:41:08,111 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 06:41:08,111 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 06:41:08,112 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 06:41:08,112 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 06:41:08,112 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 06:41:08,112 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 06:41:08,113 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 06:41:08,113 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 06:41:08,113 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 06:41:08,113 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 06:41:08,113 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 06:41:08,114 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 06:41:08,114 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 06:41:08,114 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 06:41:08,114 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 06:41:08,114 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 06:41:08,115 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 06:41:08,115 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 06:41:08,115 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 06:41:08,115 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 06:41:08,115 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 06:41:08,115 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 06:41:08,116 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 06:41:08,116 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 06:41:08,116 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 06:41:08,116 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 06:41:08,116 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 06:41:08,116 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 06:41:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 06:41:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 06:41:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 06:41:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 06:41:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 06:41:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 06:41:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 06:41:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 06:41:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 06:41:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 06:41:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 06:41:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:41:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 06:41:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 06:41:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:41:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 06:41:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 06:41:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 06:41:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 06:41:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 06:41:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 06:41:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 06:41:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 06:41:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 06:41:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 06:41:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 06:41:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 06:41:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 06:41:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 06:41:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 06:41:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 06:41:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 06:41:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 06:41:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 06:41:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 06:41:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 06:41:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 06:41:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 06:41:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 06:41:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 06:41:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 06:41:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 06:41:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 06:41:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 06:41:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 06:41:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 06:41:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 06:41:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 06:41:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 06:41:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 06:41:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 06:41:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 06:41:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 06:41:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 06:41:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 06:41:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 06:41:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 06:41:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 06:41:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 06:41:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 06:41:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 06:41:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 06:41:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 06:41:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 06:41:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:41:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:41:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:41:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:41:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:41:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:41:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:41:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:41:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:41:08,974 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:41:08,975 INFO L295 CfgBuilder]: Removed 30 assume(true) statements. [2020-09-25 06:41:08,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:41:08 BoogieIcfgContainer [2020-09-25 06:41:08,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:41:08,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:41:08,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:41:08,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:41:08,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:41:07" (1/3) ... [2020-09-25 06:41:08,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@181372ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:41:08, skipping insertion in model container [2020-09-25 06:41:08,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:07" (2/3) ... [2020-09-25 06:41:08,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@181372ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:41:08, skipping insertion in model container [2020-09-25 06:41:08,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:41:08" (3/3) ... [2020-09-25 06:41:08,992 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-01-2.i [2020-09-25 06:41:09,006 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:41:09,018 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-09-25 06:41:09,043 INFO L251 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-09-25 06:41:09,076 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:41:09,077 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:41:09,077 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:41:09,077 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:41:09,077 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:41:09,078 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:41:09,078 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:41:09,078 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:41:09,110 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2020-09-25 06:41:09,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-25 06:41:09,118 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:09,119 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:41:09,120 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 06:41:09,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:09,127 INFO L82 PathProgramCache]: Analyzing trace with hash 885652866, now seen corresponding path program 1 times [2020-09-25 06:41:09,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:09,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1793207993] [2020-09-25 06:41:09,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:09,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:09,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:09,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:41:09,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:09,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-25 06:41:09,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:09,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:09,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:41:09,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 06:41:09,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:41:09,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:41:09,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:09,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:09,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:09,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:09,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:09,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 06:41:09,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:09,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:09,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:09,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:09,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:09,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:09,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:09,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1793207993] [2020-09-25 06:41:09,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:09,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:41:09,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436319878] [2020-09-25 06:41:09,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:41:09,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:09,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:41:09,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:41:09,672 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 5 states. [2020-09-25 06:41:10,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:10,077 INFO L93 Difference]: Finished difference Result 360 states and 478 transitions. [2020-09-25 06:41:10,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:41:10,079 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-25 06:41:10,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:10,097 INFO L225 Difference]: With dead ends: 360 [2020-09-25 06:41:10,097 INFO L226 Difference]: Without dead ends: 194 [2020-09-25 06:41:10,103 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:41:10,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-09-25 06:41:10,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 164. [2020-09-25 06:41:10,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-09-25 06:41:10,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 174 transitions. [2020-09-25 06:41:10,171 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 174 transitions. Word has length 12 [2020-09-25 06:41:10,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:10,172 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 174 transitions. [2020-09-25 06:41:10,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:41:10,172 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 174 transitions. [2020-09-25 06:41:10,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 06:41:10,173 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:10,174 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 06:41:10,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:41:10,175 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 06:41:10,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:10,175 INFO L82 PathProgramCache]: Analyzing trace with hash 684663316, now seen corresponding path program 1 times [2020-09-25 06:41:10,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:10,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339807666] [2020-09-25 06:41:10,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:10,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:10,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:10,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:10,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:10,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 06:41:10,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:41:10,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-09-25 06:41:10,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:10,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:10,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:41:10,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 06:41:10,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:41:10,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:41:10,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:10,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:10,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:10,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:10,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:10,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:41:10,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:10,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:10,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:10,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:10,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:10,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:10,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:10,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339807666] [2020-09-25 06:41:10,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:10,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:41:10,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106264226] [2020-09-25 06:41:10,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:41:10,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:10,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:41:10,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:41:10,603 INFO L87 Difference]: Start difference. First operand 164 states and 174 transitions. Second operand 4 states. [2020-09-25 06:41:10,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:10,891 INFO L93 Difference]: Finished difference Result 170 states and 180 transitions. [2020-09-25 06:41:10,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:41:10,892 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-09-25 06:41:10,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:10,894 INFO L225 Difference]: With dead ends: 170 [2020-09-25 06:41:10,894 INFO L226 Difference]: Without dead ends: 165 [2020-09-25 06:41:10,896 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 06:41:10,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-09-25 06:41:10,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2020-09-25 06:41:10,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-09-25 06:41:10,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 175 transitions. [2020-09-25 06:41:10,912 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 175 transitions. Word has length 24 [2020-09-25 06:41:10,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:10,912 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 175 transitions. [2020-09-25 06:41:10,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:41:10,913 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 175 transitions. [2020-09-25 06:41:10,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-25 06:41:10,914 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:10,914 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 06:41:10,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:41:10,915 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 06:41:10,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:10,915 INFO L82 PathProgramCache]: Analyzing trace with hash -265499727, now seen corresponding path program 1 times [2020-09-25 06:41:10,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:10,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208149199] [2020-09-25 06:41:10,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:10,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:11,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:11,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:11,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 06:41:11,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:41:11,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-09-25 06:41:11,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:11,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:11,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:41:11,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 06:41:11,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:41:11,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:11,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:11,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:11,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:11,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:11,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:11,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:11,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:41:11,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:11,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:11,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:11,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:11,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:11,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:11,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:11,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208149199] [2020-09-25 06:41:11,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:11,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:41:11,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081577228] [2020-09-25 06:41:11,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:41:11,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:11,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:41:11,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:41:11,294 INFO L87 Difference]: Start difference. First operand 165 states and 175 transitions. Second operand 6 states. [2020-09-25 06:41:11,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:11,718 INFO L93 Difference]: Finished difference Result 268 states and 285 transitions. [2020-09-25 06:41:11,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:41:11,719 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-09-25 06:41:11,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:11,721 INFO L225 Difference]: With dead ends: 268 [2020-09-25 06:41:11,721 INFO L226 Difference]: Without dead ends: 263 [2020-09-25 06:41:11,722 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 06:41:11,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-09-25 06:41:11,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 170. [2020-09-25 06:41:11,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-09-25 06:41:11,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 181 transitions. [2020-09-25 06:41:11,737 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 181 transitions. Word has length 26 [2020-09-25 06:41:11,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:11,737 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 181 transitions. [2020-09-25 06:41:11,737 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:41:11,737 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 181 transitions. [2020-09-25 06:41:11,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 06:41:11,739 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:11,739 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 06:41:11,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:41:11,740 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 06:41:11,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:11,740 INFO L82 PathProgramCache]: Analyzing trace with hash 72562886, now seen corresponding path program 1 times [2020-09-25 06:41:11,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:11,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [166759662] [2020-09-25 06:41:11,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:11,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:11,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:11,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:11,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:12,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:12,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 06:41:12,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:41:12,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 551 [2020-09-25 06:41:12,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:12,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:12,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:41:12,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 06:41:12,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 06:41:12,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:12,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:12,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:12,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:12,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:12,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:12,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:41:12,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:12,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:12,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:12,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:12,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:12,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:12,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:12,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [166759662] [2020-09-25 06:41:12,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:12,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:41:12,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828085655] [2020-09-25 06:41:12,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:41:12,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:12,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:41:12,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:41:12,421 INFO L87 Difference]: Start difference. First operand 170 states and 181 transitions. Second operand 6 states. [2020-09-25 06:41:12,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:12,879 INFO L93 Difference]: Finished difference Result 279 states and 297 transitions. [2020-09-25 06:41:12,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 06:41:12,880 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-09-25 06:41:12,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:12,882 INFO L225 Difference]: With dead ends: 279 [2020-09-25 06:41:12,882 INFO L226 Difference]: Without dead ends: 247 [2020-09-25 06:41:12,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:41:12,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2020-09-25 06:41:12,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 169. [2020-09-25 06:41:12,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-09-25 06:41:12,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 180 transitions. [2020-09-25 06:41:12,910 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 180 transitions. Word has length 32 [2020-09-25 06:41:12,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:12,912 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 180 transitions. [2020-09-25 06:41:12,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:41:12,912 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 180 transitions. [2020-09-25 06:41:12,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 06:41:12,913 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:12,913 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 06:41:12,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:41:12,914 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 06:41:12,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:12,914 INFO L82 PathProgramCache]: Analyzing trace with hash -111525919, now seen corresponding path program 1 times [2020-09-25 06:41:12,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:12,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [176102326] [2020-09-25 06:41:12,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:12,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:12,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:13,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:14,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:14,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 06:41:14,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:41:14,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1496 [2020-09-25 06:41:14,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:14,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:14,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:41:14,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-25 06:41:14,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:41:14,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:14,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:14,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:14,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:14,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:14,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:14,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:14,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:41:14,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:14,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:14,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:14,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:14,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:14,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:14,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:14,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [176102326] [2020-09-25 06:41:14,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:14,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:41:14,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703663058] [2020-09-25 06:41:14,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:41:14,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:14,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:41:14,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:41:14,548 INFO L87 Difference]: Start difference. First operand 169 states and 180 transitions. Second operand 8 states. [2020-09-25 06:41:15,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:15,020 INFO L93 Difference]: Finished difference Result 261 states and 278 transitions. [2020-09-25 06:41:15,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:41:15,020 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2020-09-25 06:41:15,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:15,022 INFO L225 Difference]: With dead ends: 261 [2020-09-25 06:41:15,022 INFO L226 Difference]: Without dead ends: 256 [2020-09-25 06:41:15,024 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 06:41:15,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-09-25 06:41:15,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 158. [2020-09-25 06:41:15,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-09-25 06:41:15,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 168 transitions. [2020-09-25 06:41:15,037 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 168 transitions. Word has length 33 [2020-09-25 06:41:15,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:15,038 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 168 transitions. [2020-09-25 06:41:15,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:41:15,038 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 168 transitions. [2020-09-25 06:41:15,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 06:41:15,049 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:15,049 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 06:41:15,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:41:15,050 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 06:41:15,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:15,051 INFO L82 PathProgramCache]: Analyzing trace with hash 2123188648, now seen corresponding path program 1 times [2020-09-25 06:41:15,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:15,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [319845267] [2020-09-25 06:41:15,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:15,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:15,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:15,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:15,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:15,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 06:41:15,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:41:15,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 477 [2020-09-25 06:41:15,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:15,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:15,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:41:15,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 06:41:15,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:41:15,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:15,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:15,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:15,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:15,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:15,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:15,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:41:15,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:15,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:15,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:15,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:15,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:15,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:15,620 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 06:41:15,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [319845267] [2020-09-25 06:41:15,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:15,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:41:15,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179093288] [2020-09-25 06:41:15,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:41:15,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:15,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:41:15,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:41:15,623 INFO L87 Difference]: Start difference. First operand 158 states and 168 transitions. Second operand 7 states. [2020-09-25 06:41:16,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:16,156 INFO L93 Difference]: Finished difference Result 242 states and 258 transitions. [2020-09-25 06:41:16,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:41:16,157 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-09-25 06:41:16,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:16,161 INFO L225 Difference]: With dead ends: 242 [2020-09-25 06:41:16,161 INFO L226 Difference]: Without dead ends: 238 [2020-09-25 06:41:16,162 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 06:41:16,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-09-25 06:41:16,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 154. [2020-09-25 06:41:16,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-25 06:41:16,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 164 transitions. [2020-09-25 06:41:16,171 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 164 transitions. Word has length 36 [2020-09-25 06:41:16,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:16,172 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 164 transitions. [2020-09-25 06:41:16,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:41:16,172 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 164 transitions. [2020-09-25 06:41:16,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 06:41:16,173 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:16,174 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 06:41:16,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:41:16,174 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 06:41:16,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:16,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1785983955, now seen corresponding path program 1 times [2020-09-25 06:41:16,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:16,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1481580188] [2020-09-25 06:41:16,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:16,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:16,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:16,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:16,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:16,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:16,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:16,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 06:41:16,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:41:16,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 472 [2020-09-25 06:41:16,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:16,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:16,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:41:16,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-25 06:41:16,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:41:16,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:16,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:16,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:16,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:16,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:16,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:16,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:41:16,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:16,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:16,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:16,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:16,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:16,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:16,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:16,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1481580188] [2020-09-25 06:41:16,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:16,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:41:16,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470983456] [2020-09-25 06:41:16,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:41:16,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:16,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:41:16,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:41:16,720 INFO L87 Difference]: Start difference. First operand 154 states and 164 transitions. Second operand 4 states. [2020-09-25 06:41:17,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:17,018 INFO L93 Difference]: Finished difference Result 196 states and 210 transitions. [2020-09-25 06:41:17,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:41:17,019 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-09-25 06:41:17,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:17,021 INFO L225 Difference]: With dead ends: 196 [2020-09-25 06:41:17,022 INFO L226 Difference]: Without dead ends: 194 [2020-09-25 06:41:17,022 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 06:41:17,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-09-25 06:41:17,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 156. [2020-09-25 06:41:17,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-09-25 06:41:17,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 167 transitions. [2020-09-25 06:41:17,033 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 167 transitions. Word has length 40 [2020-09-25 06:41:17,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:17,034 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 167 transitions. [2020-09-25 06:41:17,034 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:41:17,034 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 167 transitions. [2020-09-25 06:41:17,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-25 06:41:17,037 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:17,037 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:41:17,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 06:41:17,038 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 06:41:17,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:17,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1657004682, now seen corresponding path program 1 times [2020-09-25 06:41:17,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:17,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [33657143] [2020-09-25 06:41:17,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:17,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:17,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:17,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:17,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:17,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:17,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:17,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:17,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 06:41:17,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:41:17,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 937 [2020-09-25 06:41:17,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:17,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:18,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:41:18,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-25 06:41:18,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:41:18,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:18,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:18,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:18,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:18,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:18,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:18,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:41:18,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:18,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:18,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:18,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:18,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:18,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:18,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:18,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [33657143] [2020-09-25 06:41:18,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:18,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:41:18,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642085190] [2020-09-25 06:41:18,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:41:18,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:18,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:41:18,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:41:18,064 INFO L87 Difference]: Start difference. First operand 156 states and 167 transitions. Second operand 4 states. [2020-09-25 06:41:18,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:18,364 INFO L93 Difference]: Finished difference Result 156 states and 167 transitions. [2020-09-25 06:41:18,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:41:18,365 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-09-25 06:41:18,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:18,366 INFO L225 Difference]: With dead ends: 156 [2020-09-25 06:41:18,367 INFO L226 Difference]: Without dead ends: 154 [2020-09-25 06:41:18,367 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 06:41:18,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-09-25 06:41:18,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-09-25 06:41:18,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-25 06:41:18,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 165 transitions. [2020-09-25 06:41:18,380 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 165 transitions. Word has length 42 [2020-09-25 06:41:18,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:18,381 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 165 transitions. [2020-09-25 06:41:18,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:41:18,381 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 165 transitions. [2020-09-25 06:41:18,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-25 06:41:18,383 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:18,385 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 06:41:18,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 06:41:18,385 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 06:41:18,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:18,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1175512125, now seen corresponding path program 1 times [2020-09-25 06:41:18,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:18,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368817818] [2020-09-25 06:41:18,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:18,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:18,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:18,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:18,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:19,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:19,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 06:41:19,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:41:19,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1154 [2020-09-25 06:41:19,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:19,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:19,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:41:19,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 06:41:19,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 06:41:19,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:19,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:19,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:19,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:19,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:19,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:19,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:41:19,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:19,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:19,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:19,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:19,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:19,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:19,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:19,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368817818] [2020-09-25 06:41:19,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:19,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:41:19,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421735010] [2020-09-25 06:41:19,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:41:19,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:19,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:41:19,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:41:19,689 INFO L87 Difference]: Start difference. First operand 154 states and 165 transitions. Second operand 7 states. [2020-09-25 06:41:20,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:20,215 INFO L93 Difference]: Finished difference Result 354 states and 382 transitions. [2020-09-25 06:41:20,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:41:20,217 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2020-09-25 06:41:20,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:20,219 INFO L225 Difference]: With dead ends: 354 [2020-09-25 06:41:20,219 INFO L226 Difference]: Without dead ends: 283 [2020-09-25 06:41:20,221 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 06:41:20,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-09-25 06:41:20,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 178. [2020-09-25 06:41:20,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-09-25 06:41:20,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 191 transitions. [2020-09-25 06:41:20,232 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 191 transitions. Word has length 46 [2020-09-25 06:41:20,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:20,232 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 191 transitions. [2020-09-25 06:41:20,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:41:20,233 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 191 transitions. [2020-09-25 06:41:20,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-25 06:41:20,233 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:20,234 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 06:41:20,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 06:41:20,234 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 06:41:20,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:20,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1283803554, now seen corresponding path program 1 times [2020-09-25 06:41:20,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:20,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635192747] [2020-09-25 06:41:20,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:20,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:20,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:20,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:20,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:21,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:21,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 06:41:21,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:41:21,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 764 [2020-09-25 06:41:21,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:21,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:21,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:41:21,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-09-25 06:41:21,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:41:21,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:21,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:21,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:21,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:21,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:21,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:21,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:21,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:41:21,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:21,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:21,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:21,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:21,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:21,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:21,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:21,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635192747] [2020-09-25 06:41:21,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:21,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:41:21,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010301813] [2020-09-25 06:41:21,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:41:21,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:21,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:41:21,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:41:21,067 INFO L87 Difference]: Start difference. First operand 178 states and 191 transitions. Second operand 4 states. [2020-09-25 06:41:21,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:21,296 INFO L93 Difference]: Finished difference Result 184 states and 197 transitions. [2020-09-25 06:41:21,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:41:21,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 50 [2020-09-25 06:41:21,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:21,298 INFO L225 Difference]: With dead ends: 184 [2020-09-25 06:41:21,298 INFO L226 Difference]: Without dead ends: 179 [2020-09-25 06:41:21,298 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 06:41:21,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-09-25 06:41:21,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2020-09-25 06:41:21,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-09-25 06:41:21,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 192 transitions. [2020-09-25 06:41:21,308 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 192 transitions. Word has length 50 [2020-09-25 06:41:21,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:21,309 INFO L479 AbstractCegarLoop]: Abstraction has 179 states and 192 transitions. [2020-09-25 06:41:21,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:41:21,309 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 192 transitions. [2020-09-25 06:41:21,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 06:41:21,310 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:21,310 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 06:41:21,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 06:41:21,311 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 06:41:21,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:21,311 INFO L82 PathProgramCache]: Analyzing trace with hash 109930128, now seen corresponding path program 1 times [2020-09-25 06:41:21,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:21,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160857279] [2020-09-25 06:41:21,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:21,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:21,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:21,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:21,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:21,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:21,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:21,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:22,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:22,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:22,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:22,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 06:41:22,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 06:41:22,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1198 [2020-09-25 06:41:22,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:22,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:22,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:41:22,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-25 06:41:22,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:41:22,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:22,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:22,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:22,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:22,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:22,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:22,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:41:22,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:22,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:22,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:22,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:22,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:22,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:22,568 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 06:41:22,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160857279] [2020-09-25 06:41:22,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:22,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:41:22,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047360894] [2020-09-25 06:41:22,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:41:22,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:22,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:41:22,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:41:22,572 INFO L87 Difference]: Start difference. First operand 179 states and 192 transitions. Second operand 4 states. [2020-09-25 06:41:22,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:22,840 INFO L93 Difference]: Finished difference Result 188 states and 202 transitions. [2020-09-25 06:41:22,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:41:22,840 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-25 06:41:22,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:22,842 INFO L225 Difference]: With dead ends: 188 [2020-09-25 06:41:22,842 INFO L226 Difference]: Without dead ends: 186 [2020-09-25 06:41:22,843 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 06:41:22,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-09-25 06:41:22,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 177. [2020-09-25 06:41:22,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-09-25 06:41:22,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 190 transitions. [2020-09-25 06:41:22,857 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 190 transitions. Word has length 51 [2020-09-25 06:41:22,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:22,857 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 190 transitions. [2020-09-25 06:41:22,858 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:41:22,858 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 190 transitions. [2020-09-25 06:41:22,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 06:41:22,859 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:22,859 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 06:41:22,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 06:41:22,859 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 06:41:22,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:22,860 INFO L82 PathProgramCache]: Analyzing trace with hash 2118419099, now seen corresponding path program 1 times [2020-09-25 06:41:22,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:22,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2034441031] [2020-09-25 06:41:22,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:22,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:22,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:23,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:23,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:23,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:23,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 06:41:23,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:41:23,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 918 [2020-09-25 06:41:23,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:23,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:23,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:41:23,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-25 06:41:23,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:41:23,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:23,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:23,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:23,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:23,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:23,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:23,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:41:23,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:23,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:23,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:23,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:23,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:23,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:23,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:23,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2034441031] [2020-09-25 06:41:23,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:23,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:41:23,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413516781] [2020-09-25 06:41:23,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:41:23,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:23,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:41:23,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:41:23,889 INFO L87 Difference]: Start difference. First operand 177 states and 190 transitions. Second operand 6 states. [2020-09-25 06:41:24,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:24,244 INFO L93 Difference]: Finished difference Result 204 states and 219 transitions. [2020-09-25 06:41:24,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:41:24,245 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-09-25 06:41:24,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:24,247 INFO L225 Difference]: With dead ends: 204 [2020-09-25 06:41:24,247 INFO L226 Difference]: Without dead ends: 199 [2020-09-25 06:41:24,247 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 06:41:24,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-09-25 06:41:24,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 182. [2020-09-25 06:41:24,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-25 06:41:24,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 196 transitions. [2020-09-25 06:41:24,257 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 196 transitions. Word has length 52 [2020-09-25 06:41:24,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:24,258 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 196 transitions. [2020-09-25 06:41:24,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:41:24,258 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 196 transitions. [2020-09-25 06:41:24,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 06:41:24,259 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:24,259 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 06:41:24,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 06:41:24,260 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 06:41:24,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:24,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1565892499, now seen corresponding path program 1 times [2020-09-25 06:41:24,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:24,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129552859] [2020-09-25 06:41:24,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:24,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:24,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:24,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:24,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:25,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:26,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:27,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:27,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 06:41:27,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:41:27,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2854 [2020-09-25 06:41:27,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:27,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:27,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 06:41:27,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 06:41:27,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 06:41:27,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:27,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:27,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:27,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:27,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:27,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:27,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:41:27,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:27,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:27,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:27,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:27,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:27,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:41:27,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:27,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129552859] [2020-09-25 06:41:27,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:27,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 06:41:27,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671775900] [2020-09-25 06:41:27,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 06:41:27,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:27,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 06:41:27,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-09-25 06:41:27,768 INFO L87 Difference]: Start difference. First operand 182 states and 196 transitions. Second operand 14 states. [2020-09-25 06:41:28,743 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-09-25 06:41:28,907 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-09-25 06:41:29,416 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2020-09-25 06:41:30,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:30,650 INFO L93 Difference]: Finished difference Result 731 states and 786 transitions. [2020-09-25 06:41:30,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-25 06:41:30,650 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 53 [2020-09-25 06:41:30,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:30,658 INFO L225 Difference]: With dead ends: 731 [2020-09-25 06:41:30,658 INFO L226 Difference]: Without dead ends: 728 [2020-09-25 06:41:30,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=326, Invalid=934, Unknown=0, NotChecked=0, Total=1260 [2020-09-25 06:41:30,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-09-25 06:41:30,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 202. [2020-09-25 06:41:30,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-09-25 06:41:30,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 219 transitions. [2020-09-25 06:41:30,688 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 219 transitions. Word has length 53 [2020-09-25 06:41:30,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:30,688 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 219 transitions. [2020-09-25 06:41:30,688 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 06:41:30,688 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 219 transitions. [2020-09-25 06:41:30,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-25 06:41:30,689 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:30,689 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 06:41:30,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 06:41:30,689 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 06:41:30,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:30,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1523074089, now seen corresponding path program 1 times [2020-09-25 06:41:30,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:30,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85483159] [2020-09-25 06:41:30,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:30,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:30,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:30,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:30,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:30,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:31,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:31,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:31,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:32,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:32,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 06:41:32,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 06:41:32,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1774 [2020-09-25 06:41:32,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:32,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:32,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:41:32,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 06:41:32,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 06:41:32,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:41:32,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:32,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:32,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:32,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:32,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:32,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:41:32,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:32,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:32,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:32,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:32,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:32,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:41:32,593 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 06:41:32,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85483159] [2020-09-25 06:41:32,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:32,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:41:32,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966556506] [2020-09-25 06:41:32,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:41:32,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:32,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:41:32,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:41:32,596 INFO L87 Difference]: Start difference. First operand 202 states and 219 transitions. Second operand 6 states. [2020-09-25 06:41:33,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:33,022 INFO L93 Difference]: Finished difference Result 287 states and 311 transitions. [2020-09-25 06:41:33,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:41:33,026 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-09-25 06:41:33,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:33,027 INFO L225 Difference]: With dead ends: 287 [2020-09-25 06:41:33,028 INFO L226 Difference]: Without dead ends: 259 [2020-09-25 06:41:33,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:41:33,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-09-25 06:41:33,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 240. [2020-09-25 06:41:33,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-25 06:41:33,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 265 transitions. [2020-09-25 06:41:33,040 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 265 transitions. Word has length 55 [2020-09-25 06:41:33,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:33,041 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 265 transitions. [2020-09-25 06:41:33,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:41:33,041 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 265 transitions. [2020-09-25 06:41:33,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 06:41:33,042 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:33,042 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 06:41:33,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 06:41:33,042 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 06:41:33,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:33,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1636675303, now seen corresponding path program 1 times [2020-09-25 06:41:33,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:33,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1928836222] [2020-09-25 06:41:33,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:33,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:33,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:33,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:33,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:33,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:34,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:36,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:36,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 06:41:36,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:41:36,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3777 [2020-09-25 06:41:36,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:36,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:36,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 06:41:36,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 06:41:36,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 06:41:36,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:37,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:37,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:37,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:37,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:37,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:37,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:37,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:41:37,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:37,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:37,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:37,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:37,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:37,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:37,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:37,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1928836222] [2020-09-25 06:41:37,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:37,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-25 06:41:37,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660752425] [2020-09-25 06:41:37,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 06:41:37,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:37,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 06:41:37,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-09-25 06:41:37,437 INFO L87 Difference]: Start difference. First operand 240 states and 265 transitions. Second operand 15 states. [2020-09-25 06:41:39,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:39,778 INFO L93 Difference]: Finished difference Result 581 states and 629 transitions. [2020-09-25 06:41:39,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 06:41:39,779 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 57 [2020-09-25 06:41:39,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:39,782 INFO L225 Difference]: With dead ends: 581 [2020-09-25 06:41:39,783 INFO L226 Difference]: Without dead ends: 578 [2020-09-25 06:41:39,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=271, Invalid=851, Unknown=0, NotChecked=0, Total=1122 [2020-09-25 06:41:39,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-09-25 06:41:39,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 244. [2020-09-25 06:41:39,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-09-25 06:41:39,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 269 transitions. [2020-09-25 06:41:39,801 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 269 transitions. Word has length 57 [2020-09-25 06:41:39,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:39,802 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 269 transitions. [2020-09-25 06:41:39,802 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 06:41:39,802 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 269 transitions. [2020-09-25 06:41:39,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 06:41:39,803 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:39,804 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 06:41:39,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 06:41:39,804 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 06:41:39,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:39,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1650505471, now seen corresponding path program 1 times [2020-09-25 06:41:39,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:39,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1040173907] [2020-09-25 06:41:39,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:39,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:39,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:40,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:40,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:40,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:40,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:40,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 06:41:40,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:41:40,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1058 [2020-09-25 06:41:40,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:40,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:40,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:41:40,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 06:41:40,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 06:41:40,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:40,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:40,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:40,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:40,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:40,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:40,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:41:40,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:40,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:40,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:40,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:40,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:40,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:40,991 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 06:41:40,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1040173907] [2020-09-25 06:41:40,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:41:40,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 06:41:40,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548424267] [2020-09-25 06:41:40,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:41:40,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:40,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:41:40,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:41:40,994 INFO L87 Difference]: Start difference. First operand 244 states and 269 transitions. Second operand 7 states. [2020-09-25 06:41:41,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:41,482 INFO L93 Difference]: Finished difference Result 394 states and 431 transitions. [2020-09-25 06:41:41,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:41:41,483 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2020-09-25 06:41:41,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:41,485 INFO L225 Difference]: With dead ends: 394 [2020-09-25 06:41:41,485 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 06:41:41,486 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 06:41:41,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 06:41:41,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 245. [2020-09-25 06:41:41,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-25 06:41:41,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 268 transitions. [2020-09-25 06:41:41,504 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 268 transitions. Word has length 57 [2020-09-25 06:41:41,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:41,504 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 268 transitions. [2020-09-25 06:41:41,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:41:41,504 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 268 transitions. [2020-09-25 06:41:41,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-25 06:41:41,511 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:41,511 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] [2020-09-25 06:41:41,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 06:41:41,511 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 06:41:41,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:41,512 INFO L82 PathProgramCache]: Analyzing trace with hash 682683072, now seen corresponding path program 1 times [2020-09-25 06:41:41,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:41,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1767919906] [2020-09-25 06:41:41,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:41,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:41,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:41,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:41,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:42,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:45,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:45,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-25 06:41:45,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:41:45,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4056 [2020-09-25 06:41:45,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:45,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:45,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:41:45,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-25 06:41:45,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:41:45,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:45,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:45,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:45,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:45,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:45,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:45,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:41:45,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:45,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:45,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:45,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:45,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:45,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:41:45,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:45,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1767919906] [2020-09-25 06:41:45,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:45,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:41:45,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984912747] [2020-09-25 06:41:45,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:41:45,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:45,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:41:45,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:41:45,717 INFO L87 Difference]: Start difference. First operand 245 states and 268 transitions. Second operand 8 states. [2020-09-25 06:41:46,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:46,159 INFO L93 Difference]: Finished difference Result 262 states and 286 transitions. [2020-09-25 06:41:46,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:41:46,160 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2020-09-25 06:41:46,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:46,161 INFO L225 Difference]: With dead ends: 262 [2020-09-25 06:41:46,161 INFO L226 Difference]: Without dead ends: 257 [2020-09-25 06:41:46,162 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 06:41:46,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-09-25 06:41:46,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 234. [2020-09-25 06:41:46,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-25 06:41:46,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 256 transitions. [2020-09-25 06:41:46,179 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 256 transitions. Word has length 59 [2020-09-25 06:41:46,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:46,179 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 256 transitions. [2020-09-25 06:41:46,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:41:46,180 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 256 transitions. [2020-09-25 06:41:46,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 06:41:46,180 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:46,181 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 06:41:46,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-25 06:41:46,181 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 06:41:46,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:46,181 INFO L82 PathProgramCache]: Analyzing trace with hash -984681049, now seen corresponding path program 1 times [2020-09-25 06:41:46,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:46,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1320013372] [2020-09-25 06:41:46,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:46,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:46,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:46,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:46,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:46,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:48,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:48,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:48,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:49,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:50,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:50,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:51,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:51,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 06:41:51,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 06:41:51,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 06:41:51,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:51,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:51,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 06:41:51,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 06:41:51,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 06:41:51,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:41:51,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:51,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:51,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:51,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:51,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:51,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:41:51,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:51,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:51,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:51,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:51,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:51,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:51,508 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 06:41:51,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1320013372] [2020-09-25 06:41:51,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:51,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 06:41:51,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989844312] [2020-09-25 06:41:51,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 06:41:51,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:51,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 06:41:51,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-09-25 06:41:51,517 INFO L87 Difference]: Start difference. First operand 234 states and 256 transitions. Second operand 13 states.