/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=0.2 --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 04:23:52,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:23:52,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:23:52,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:23:52,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:23:52,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:23:52,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:23:52,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:23:52,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:23:52,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:23:52,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:23:52,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:23:52,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:23:52,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:23:52,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:23:52,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:23:52,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:23:52,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:23:52,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:23:52,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:23:52,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:23:52,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:23:52,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:23:52,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:23:52,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:23:52,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:23:52,469 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:23:52,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:23:52,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:23:52,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:23:52,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:23:52,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:23:52,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:23:52,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:23:52,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:23:52,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:23:52,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:23:52,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:23:52,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:23:52,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:23:52,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:23:52,481 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 04:23:52,537 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:23:52,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:23:52,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:23:52,539 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:23:52,540 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:23:52,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:23:52,541 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:23:52,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:23:52,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:23:52,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:23:52,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:23:52,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:23:52,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:23:52,543 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:23:52,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:23:52,544 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:23:52,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:23:52,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:23:52,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:23:52,545 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:23:52,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:23:52,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:23:52,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:23:52,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:23:52,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:23:52,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:23:52,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:23:52,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:23:52,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:23:52,547 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-09-25 04:23:53,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:23:53,043 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:23:53,047 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:23:53,049 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:23:53,050 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:23:53,051 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-01-2.i [2020-09-25 04:23:53,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f05c7733a/59b3649f4f7c4c9db33e9f76fd73a321/FLAGc4149a02a [2020-09-25 04:23:53,778 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:23:53,779 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/sll-01-2.i [2020-09-25 04:23:53,799 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f05c7733a/59b3649f4f7c4c9db33e9f76fd73a321/FLAGc4149a02a [2020-09-25 04:23:54,027 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f05c7733a/59b3649f4f7c4c9db33e9f76fd73a321 [2020-09-25 04:23:54,040 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:23:54,046 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:23:54,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:23:54,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:23:54,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:23:54,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:23:54" (1/1) ... [2020-09-25 04:23:54,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@445b6256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:54, skipping insertion in model container [2020-09-25 04:23:54,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:23:54" (1/1) ... [2020-09-25 04:23:54,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:23:54,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:23:54,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:23:54,617 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:23:54,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:23:54,731 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:23:54,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:54 WrapperNode [2020-09-25 04:23:54,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:23:54,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:23:54,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:23:54,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:23:54,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:54" (1/1) ... [2020-09-25 04:23:54,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:54" (1/1) ... [2020-09-25 04:23:54,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:54" (1/1) ... [2020-09-25 04:23:54,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:54" (1/1) ... [2020-09-25 04:23:54,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:54" (1/1) ... [2020-09-25 04:23:54,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:54" (1/1) ... [2020-09-25 04:23:54,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:54" (1/1) ... [2020-09-25 04:23:54,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:23:54,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:23:54,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:23:54,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:23:54,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:54" (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 04:23:54,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:23:54,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:23:54,932 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:23:54,933 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 04:23:54,933 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 04:23:54,933 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 04:23:54,933 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 04:23:54,933 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 04:23:54,933 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 04:23:54,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 04:23:54,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 04:23:54,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 04:23:54,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 04:23:54,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 04:23:54,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 04:23:54,936 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 04:23:54,936 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 04:23:54,936 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 04:23:54,936 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 04:23:54,937 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 04:23:54,937 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 04:23:54,938 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 04:23:54,938 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 04:23:54,938 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 04:23:54,938 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 04:23:54,941 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 04:23:54,941 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 04:23:54,941 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 04:23:54,941 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 04:23:54,942 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 04:23:54,942 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 04:23:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 04:23:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 04:23:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 04:23:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 04:23:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 04:23:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 04:23:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 04:23:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 04:23:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 04:23:54,945 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 04:23:54,945 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 04:23:54,945 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 04:23:54,945 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 04:23:54,945 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 04:23:54,946 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 04:23:54,946 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 04:23:54,946 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 04:23:54,946 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 04:23:54,947 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 04:23:54,947 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 04:23:54,947 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 04:23:54,947 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 04:23:54,948 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:23:54,948 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 04:23:54,948 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 04:23:54,948 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:23:54,948 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 04:23:54,948 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 04:23:54,949 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 04:23:54,949 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 04:23:54,949 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 04:23:54,949 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 04:23:54,949 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 04:23:54,950 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 04:23:54,950 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 04:23:54,950 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 04:23:54,951 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 04:23:54,951 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 04:23:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 04:23:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 04:23:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 04:23:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 04:23:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 04:23:54,954 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 04:23:54,954 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 04:23:54,954 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 04:23:54,954 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 04:23:54,954 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 04:23:54,954 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 04:23:54,954 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 04:23:54,955 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 04:23:54,955 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 04:23:54,955 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 04:23:54,955 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 04:23:54,955 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 04:23:54,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 04:23:54,956 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 04:23:54,956 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 04:23:54,956 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 04:23:54,957 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 04:23:54,957 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 04:23:54,957 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 04:23:54,957 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 04:23:54,958 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 04:23:54,958 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 04:23:54,958 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 04:23:54,958 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 04:23:54,958 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 04:23:54,958 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 04:23:54,958 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 04:23:54,958 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 04:23:54,959 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 04:23:54,959 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 04:23:54,959 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 04:23:54,959 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 04:23:54,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:23:54,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:23:54,959 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:23:54,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:23:54,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:23:54,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:23:54,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:23:54,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:23:54,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:23:55,705 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:23:55,705 INFO L295 CfgBuilder]: Removed 30 assume(true) statements. [2020-09-25 04:23:55,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:23:55 BoogieIcfgContainer [2020-09-25 04:23:55,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:23:55,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:23:55,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:23:55,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:23:55,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:23:54" (1/3) ... [2020-09-25 04:23:55,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4bed6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:23:55, skipping insertion in model container [2020-09-25 04:23:55,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:54" (2/3) ... [2020-09-25 04:23:55,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4bed6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:23:55, skipping insertion in model container [2020-09-25 04:23:55,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:23:55" (3/3) ... [2020-09-25 04:23:55,724 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-01-2.i [2020-09-25 04:23:55,739 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:23:55,751 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-09-25 04:23:55,777 INFO L251 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-09-25 04:23:55,818 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:23:55,819 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:23:55,819 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:23:55,819 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:23:55,820 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:23:55,820 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:23:55,820 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:23:55,820 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:23:55,853 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2020-09-25 04:23:55,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-25 04:23:55,863 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:23:55,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:23:55,866 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 04:23:55,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:23:55,877 INFO L82 PathProgramCache]: Analyzing trace with hash 885652866, now seen corresponding path program 1 times [2020-09-25 04:23:55,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:23:55,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [412061102] [2020-09-25 04:23:55,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:23:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:56,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:56,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:56,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:23:56,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:56,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-09-25 04:23:56,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:56,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:56,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:23:56,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 04:23:56,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:23:56,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:23:56,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:23:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:56,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:56,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:56,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:23:56,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:56,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 04:23:56,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:56,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:56,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:23:56,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:23:56,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:23:56,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:56,396 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 04:23:56,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [412061102] [2020-09-25 04:23:56,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:23:56,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:23:56,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949029492] [2020-09-25 04:23:56,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:23:56,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:23:56,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:23:56,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:23:56,429 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 5 states. [2020-09-25 04:23:56,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:23:56,876 INFO L93 Difference]: Finished difference Result 360 states and 478 transitions. [2020-09-25 04:23:56,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:23:56,878 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-25 04:23:56,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:23:56,895 INFO L225 Difference]: With dead ends: 360 [2020-09-25 04:23:56,895 INFO L226 Difference]: Without dead ends: 194 [2020-09-25 04:23:56,901 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 04:23:56,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-09-25 04:23:56,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 164. [2020-09-25 04:23:56,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-09-25 04:23:56,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 174 transitions. [2020-09-25 04:23:56,970 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 174 transitions. Word has length 12 [2020-09-25 04:23:56,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:23:56,971 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 174 transitions. [2020-09-25 04:23:56,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:23:56,971 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 174 transitions. [2020-09-25 04:23:56,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 04:23:56,973 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:23:56,973 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 04:23:56,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:23:56,974 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 04:23:56,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:23:56,974 INFO L82 PathProgramCache]: Analyzing trace with hash 684663316, now seen corresponding path program 1 times [2020-09-25 04:23:56,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:23:56,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704110683] [2020-09-25 04:23:56,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:23:56,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:57,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:57,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:57,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:57,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 04:23:57,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:23:57,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-09-25 04:23:57,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:57,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:57,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:23:57,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 04:23:57,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 04:23:57,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:23:57,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:23:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:57,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:57,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:57,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:23:57,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:57,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:23:57,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:57,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:57,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:23:57,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:23:57,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:23:57,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:57,353 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 04:23:57,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704110683] [2020-09-25 04:23:57,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:23:57,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:23:57,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211188708] [2020-09-25 04:23:57,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:23:57,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:23:57,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:23:57,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:23:57,358 INFO L87 Difference]: Start difference. First operand 164 states and 174 transitions. Second operand 4 states. [2020-09-25 04:23:57,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:23:57,710 INFO L93 Difference]: Finished difference Result 170 states and 180 transitions. [2020-09-25 04:23:57,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 04:23:57,711 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-09-25 04:23:57,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:23:57,714 INFO L225 Difference]: With dead ends: 170 [2020-09-25 04:23:57,714 INFO L226 Difference]: Without dead ends: 165 [2020-09-25 04:23:57,716 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 04:23:57,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-09-25 04:23:57,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2020-09-25 04:23:57,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-09-25 04:23:57,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 175 transitions. [2020-09-25 04:23:57,731 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 175 transitions. Word has length 24 [2020-09-25 04:23:57,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:23:57,732 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 175 transitions. [2020-09-25 04:23:57,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:23:57,732 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 175 transitions. [2020-09-25 04:23:57,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-25 04:23:57,733 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:23:57,733 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 04:23:57,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:23:57,734 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 04:23:57,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:23:57,735 INFO L82 PathProgramCache]: Analyzing trace with hash -265499727, now seen corresponding path program 1 times [2020-09-25 04:23:57,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:23:57,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1888161577] [2020-09-25 04:23:57,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:23:57,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:57,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:57,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:58,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:58,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 04:23:58,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:23:58,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-09-25 04:23:58,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:58,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:58,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:23:58,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 04:23:58,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:23:58,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:58,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:23:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:58,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:58,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:58,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:23:58,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:58,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:23:58,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:58,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:58,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:23:58,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:23:58,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:23:58,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:58,109 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 04:23:58,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1888161577] [2020-09-25 04:23:58,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:23:58,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:23:58,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484331506] [2020-09-25 04:23:58,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:23:58,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:23:58,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:23:58,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:23:58,112 INFO L87 Difference]: Start difference. First operand 165 states and 175 transitions. Second operand 6 states. [2020-09-25 04:23:58,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:23:58,541 INFO L93 Difference]: Finished difference Result 267 states and 284 transitions. [2020-09-25 04:23:58,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 04:23:58,541 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-09-25 04:23:58,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:23:58,544 INFO L225 Difference]: With dead ends: 267 [2020-09-25 04:23:58,545 INFO L226 Difference]: Without dead ends: 262 [2020-09-25 04:23:58,545 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 04:23:58,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-09-25 04:23:58,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 170. [2020-09-25 04:23:58,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-09-25 04:23:58,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 181 transitions. [2020-09-25 04:23:58,576 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 181 transitions. Word has length 26 [2020-09-25 04:23:58,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:23:58,577 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 181 transitions. [2020-09-25 04:23:58,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:23:58,578 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 181 transitions. [2020-09-25 04:23:58,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 04:23:58,581 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:23:58,581 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 04:23:58,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:23:58,583 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 04:23:58,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:23:58,584 INFO L82 PathProgramCache]: Analyzing trace with hash 72562886, now seen corresponding path program 1 times [2020-09-25 04:23:58,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:23:58,584 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [800964568] [2020-09-25 04:23:58,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:23:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:58,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:58,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:58,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:58,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:59,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:59,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 04:23:59,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:23:59,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 549 [2020-09-25 04:23:59,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:59,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:59,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:23:59,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 04:23:59,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 04:23:59,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:59,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:23:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:59,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:59,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:59,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:23:59,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:59,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:23:59,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:59,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:59,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:23:59,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:23:59,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:23:59,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:59,264 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 04:23:59,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [800964568] [2020-09-25 04:23:59,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:23:59,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:23:59,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720423288] [2020-09-25 04:23:59,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:23:59,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:23:59,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:23:59,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:23:59,270 INFO L87 Difference]: Start difference. First operand 170 states and 181 transitions. Second operand 5 states. [2020-09-25 04:23:59,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:23:59,707 INFO L93 Difference]: Finished difference Result 200 states and 214 transitions. [2020-09-25 04:23:59,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:23:59,707 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-09-25 04:23:59,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:23:59,709 INFO L225 Difference]: With dead ends: 200 [2020-09-25 04:23:59,711 INFO L226 Difference]: Without dead ends: 166 [2020-09-25 04:23:59,712 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 04:23:59,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-09-25 04:23:59,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 165. [2020-09-25 04:23:59,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-09-25 04:23:59,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 176 transitions. [2020-09-25 04:23:59,738 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 176 transitions. Word has length 32 [2020-09-25 04:23:59,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:23:59,739 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 176 transitions. [2020-09-25 04:23:59,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:23:59,739 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 176 transitions. [2020-09-25 04:23:59,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 04:23:59,744 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:23:59,744 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 04:23:59,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:23:59,744 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 04:23:59,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:23:59,745 INFO L82 PathProgramCache]: Analyzing trace with hash -111525919, now seen corresponding path program 1 times [2020-09-25 04:23:59,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:23:59,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682028571] [2020-09-25 04:23:59,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:23:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:59,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:59,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:01,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:01,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 04:24:01,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:24:01,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1290 [2020-09-25 04:24:01,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:01,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:01,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:24:01,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-25 04:24:01,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:24:01,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:01,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:01,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:01,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:01,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:01,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:01,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:24:01,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:01,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:01,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:01,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:01,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:01,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:01,213 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 04:24:01,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682028571] [2020-09-25 04:24:01,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:01,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:24:01,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585193107] [2020-09-25 04:24:01,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:24:01,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:01,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:24:01,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:24:01,217 INFO L87 Difference]: Start difference. First operand 165 states and 176 transitions. Second operand 8 states. [2020-09-25 04:24:01,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:01,880 INFO L93 Difference]: Finished difference Result 254 states and 271 transitions. [2020-09-25 04:24:01,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:24:01,881 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2020-09-25 04:24:01,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:01,883 INFO L225 Difference]: With dead ends: 254 [2020-09-25 04:24:01,884 INFO L226 Difference]: Without dead ends: 249 [2020-09-25 04:24:01,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-09-25 04:24:01,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-09-25 04:24:01,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 154. [2020-09-25 04:24:01,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-25 04:24:01,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 164 transitions. [2020-09-25 04:24:01,894 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 164 transitions. Word has length 33 [2020-09-25 04:24:01,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:01,895 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 164 transitions. [2020-09-25 04:24:01,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:24:01,895 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 164 transitions. [2020-09-25 04:24:01,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 04:24:01,896 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:01,897 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 04:24:01,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:24:01,897 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 04:24:01,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:01,898 INFO L82 PathProgramCache]: Analyzing trace with hash 2123188648, now seen corresponding path program 1 times [2020-09-25 04:24:01,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:01,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814168012] [2020-09-25 04:24:01,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:01,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:01,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:02,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:02,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:02,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 04:24:02,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:24:02,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 445 [2020-09-25 04:24:02,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:02,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:02,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:24:02,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 04:24:02,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 04:24:02,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:02,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:02,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:02,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:02,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:02,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:02,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:24:02,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:02,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:02,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:02,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:02,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:02,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:02,439 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 04:24:02,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814168012] [2020-09-25 04:24:02,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:02,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:24:02,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012461096] [2020-09-25 04:24:02,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:24:02,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:02,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:24:02,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:24:02,441 INFO L87 Difference]: Start difference. First operand 154 states and 164 transitions. Second operand 6 states. [2020-09-25 04:24:02,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:02,781 INFO L93 Difference]: Finished difference Result 369 states and 394 transitions. [2020-09-25 04:24:02,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:24:02,782 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-09-25 04:24:02,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:02,783 INFO L225 Difference]: With dead ends: 369 [2020-09-25 04:24:02,784 INFO L226 Difference]: Without dead ends: 245 [2020-09-25 04:24:02,785 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 04:24:02,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-09-25 04:24:02,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 157. [2020-09-25 04:24:02,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-09-25 04:24:02,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 167 transitions. [2020-09-25 04:24:02,793 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 167 transitions. Word has length 36 [2020-09-25 04:24:02,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:02,793 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 167 transitions. [2020-09-25 04:24:02,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:24:02,794 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 167 transitions. [2020-09-25 04:24:02,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 04:24:02,795 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:02,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:24:02,795 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:24:02,796 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 04:24:02,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:02,796 INFO L82 PathProgramCache]: Analyzing trace with hash -401575995, now seen corresponding path program 1 times [2020-09-25 04:24:02,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:02,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1105264540] [2020-09-25 04:24:02,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:02,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:02,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:02,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 04:24:02,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:02,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-25 04:24:02,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:02,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:02,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:24:02,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 04:24:02,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:24:02,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:03,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:03,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:03,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:03,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:03,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:03,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:24:03,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:03,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:03,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:03,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:03,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:03,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:03,057 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 04:24:03,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1105264540] [2020-09-25 04:24:03,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:03,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:24:03,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634680442] [2020-09-25 04:24:03,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:24:03,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:03,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:24:03,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:24:03,088 INFO L87 Difference]: Start difference. First operand 157 states and 167 transitions. Second operand 7 states. [2020-09-25 04:24:03,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:03,673 INFO L93 Difference]: Finished difference Result 239 states and 255 transitions. [2020-09-25 04:24:03,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 04:24:03,674 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-09-25 04:24:03,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:03,676 INFO L225 Difference]: With dead ends: 239 [2020-09-25 04:24:03,676 INFO L226 Difference]: Without dead ends: 237 [2020-09-25 04:24:03,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-09-25 04:24:03,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-09-25 04:24:03,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 155. [2020-09-25 04:24:03,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-09-25 04:24:03,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 165 transitions. [2020-09-25 04:24:03,684 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 165 transitions. Word has length 38 [2020-09-25 04:24:03,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:03,685 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 165 transitions. [2020-09-25 04:24:03,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:24:03,685 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 165 transitions. [2020-09-25 04:24:03,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-25 04:24:03,686 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:03,687 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 04:24:03,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 04:24:03,687 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 04:24:03,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:03,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1938604912, now seen corresponding path program 1 times [2020-09-25 04:24:03,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:03,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [607036168] [2020-09-25 04:24:03,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:03,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:03,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:03,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 04:24:03,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:03,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 04:24:03,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:03,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:03,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:24:03,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-25 04:24:03,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:24:03,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:03,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:03,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:03,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:03,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:03,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:03,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:24:03,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:03,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:03,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:03,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:03,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:03,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:03,796 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 04:24:03,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [607036168] [2020-09-25 04:24:03,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:03,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:24:03,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491891468] [2020-09-25 04:24:03,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:24:03,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:03,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:24:03,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:24:03,799 INFO L87 Difference]: Start difference. First operand 155 states and 165 transitions. Second operand 4 states. [2020-09-25 04:24:04,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:04,033 INFO L93 Difference]: Finished difference Result 195 states and 209 transitions. [2020-09-25 04:24:04,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 04:24:04,034 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-09-25 04:24:04,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:04,036 INFO L225 Difference]: With dead ends: 195 [2020-09-25 04:24:04,036 INFO L226 Difference]: Without dead ends: 193 [2020-09-25 04:24:04,036 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 04:24:04,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-09-25 04:24:04,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 157. [2020-09-25 04:24:04,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-09-25 04:24:04,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 168 transitions. [2020-09-25 04:24:04,044 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 168 transitions. Word has length 42 [2020-09-25 04:24:04,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:04,046 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 168 transitions. [2020-09-25 04:24:04,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:24:04,046 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 168 transitions. [2020-09-25 04:24:04,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-25 04:24:04,049 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:04,049 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:24:04,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 04:24:04,050 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 04:24:04,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:04,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1017153069, now seen corresponding path program 1 times [2020-09-25 04:24:04,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:04,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1510417636] [2020-09-25 04:24:04,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:04,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:04,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:04,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:04,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:04,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:04,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:04,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 04:24:04,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:24:04,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 808 [2020-09-25 04:24:04,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:04,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:04,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:24:04,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 04:24:04,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:24:04,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:04,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:04,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:04,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:04,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:04,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:04,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:04,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:24:04,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:04,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:04,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:04,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:04,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:04,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:04,941 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 04:24:04,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1510417636] [2020-09-25 04:24:04,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:04,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:24:04,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948256300] [2020-09-25 04:24:04,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:24:04,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:04,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:24:04,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:24:04,950 INFO L87 Difference]: Start difference. First operand 157 states and 168 transitions. Second operand 4 states. [2020-09-25 04:24:05,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:05,206 INFO L93 Difference]: Finished difference Result 157 states and 168 transitions. [2020-09-25 04:24:05,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 04:24:05,206 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-09-25 04:24:05,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:05,208 INFO L225 Difference]: With dead ends: 157 [2020-09-25 04:24:05,208 INFO L226 Difference]: Without dead ends: 155 [2020-09-25 04:24:05,208 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 04:24:05,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-09-25 04:24:05,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2020-09-25 04:24:05,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-09-25 04:24:05,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 166 transitions. [2020-09-25 04:24:05,215 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 166 transitions. Word has length 44 [2020-09-25 04:24:05,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:05,216 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 166 transitions. [2020-09-25 04:24:05,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:24:05,216 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 166 transitions. [2020-09-25 04:24:05,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-25 04:24:05,217 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:05,217 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] [2020-09-25 04:24:05,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 04:24:05,218 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 04:24:05,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:05,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1203451366, now seen corresponding path program 1 times [2020-09-25 04:24:05,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:05,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [634154050] [2020-09-25 04:24:05,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:05,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:05,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:05,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:05,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:05,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:05,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:05,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:07,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:07,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 04:24:07,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:24:07,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2323 [2020-09-25 04:24:07,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:07,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:07,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:24:07,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 04:24:07,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 04:24:07,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:07,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:07,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:07,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:07,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:07,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:07,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:07,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:24:07,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:07,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:07,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:07,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:07,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:07,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:07,681 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 04:24:07,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [634154050] [2020-09-25 04:24:07,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:07,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:24:07,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580150260] [2020-09-25 04:24:07,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:24:07,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:07,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:24:07,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:24:07,684 INFO L87 Difference]: Start difference. First operand 155 states and 166 transitions. Second operand 7 states. [2020-09-25 04:24:08,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:08,174 INFO L93 Difference]: Finished difference Result 348 states and 375 transitions. [2020-09-25 04:24:08,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:24:08,174 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2020-09-25 04:24:08,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:08,176 INFO L225 Difference]: With dead ends: 348 [2020-09-25 04:24:08,176 INFO L226 Difference]: Without dead ends: 279 [2020-09-25 04:24:08,177 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 04:24:08,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-09-25 04:24:08,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 176. [2020-09-25 04:24:08,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-09-25 04:24:08,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 188 transitions. [2020-09-25 04:24:08,188 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 188 transitions. Word has length 48 [2020-09-25 04:24:08,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:08,189 INFO L479 AbstractCegarLoop]: Abstraction has 176 states and 188 transitions. [2020-09-25 04:24:08,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:24:08,190 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 188 transitions. [2020-09-25 04:24:08,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 04:24:08,191 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:08,191 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 04:24:08,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 04:24:08,192 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 04:24:08,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:08,192 INFO L82 PathProgramCache]: Analyzing trace with hash 2069783995, now seen corresponding path program 1 times [2020-09-25 04:24:08,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:08,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1275615219] [2020-09-25 04:24:08,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:08,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:08,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:08,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:08,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 04:24:08,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:24:08,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-09-25 04:24:08,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:08,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:08,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:24:08,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-25 04:24:08,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 04:24:08,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:08,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:08,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:08,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:08,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:08,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:08,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:24:08,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:08,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:08,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:08,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:08,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:08,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:24:08,481 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 04:24:08,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1275615219] [2020-09-25 04:24:08,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:08,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:24:08,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093433112] [2020-09-25 04:24:08,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:24:08,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:08,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:24:08,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:24:08,484 INFO L87 Difference]: Start difference. First operand 176 states and 188 transitions. Second operand 4 states. [2020-09-25 04:24:08,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:08,699 INFO L93 Difference]: Finished difference Result 182 states and 194 transitions. [2020-09-25 04:24:08,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 04:24:08,700 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2020-09-25 04:24:08,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:08,701 INFO L225 Difference]: With dead ends: 182 [2020-09-25 04:24:08,701 INFO L226 Difference]: Without dead ends: 177 [2020-09-25 04:24:08,702 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 04:24:08,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-09-25 04:24:08,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2020-09-25 04:24:08,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-09-25 04:24:08,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 189 transitions. [2020-09-25 04:24:08,715 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 189 transitions. Word has length 52 [2020-09-25 04:24:08,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:08,715 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 189 transitions. [2020-09-25 04:24:08,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:24:08,716 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 189 transitions. [2020-09-25 04:24:08,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 04:24:08,716 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:08,716 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 04:24:08,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 04:24:08,717 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 04:24:08,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:08,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1565892499, now seen corresponding path program 1 times [2020-09-25 04:24:08,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:08,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [220585712] [2020-09-25 04:24:08,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:08,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:08,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:09,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:09,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:11,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:11,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:11,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 04:24:11,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:24:11,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2835 [2020-09-25 04:24:11,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:11,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:11,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:24:11,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-25 04:24:11,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 04:24:11,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:11,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:11,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:11,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:11,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:11,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:11,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:11,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:24:11,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:11,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:11,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:11,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:11,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:11,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:12,011 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 04:24:12,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [220585712] [2020-09-25 04:24:12,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:12,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:24:12,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440100330] [2020-09-25 04:24:12,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:24:12,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:12,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:24:12,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:24:12,016 INFO L87 Difference]: Start difference. First operand 177 states and 189 transitions. Second operand 10 states. [2020-09-25 04:24:13,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:13,124 INFO L93 Difference]: Finished difference Result 343 states and 369 transitions. [2020-09-25 04:24:13,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 04:24:13,125 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 53 [2020-09-25 04:24:13,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:13,127 INFO L225 Difference]: With dead ends: 343 [2020-09-25 04:24:13,127 INFO L226 Difference]: Without dead ends: 340 [2020-09-25 04:24:13,127 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2020-09-25 04:24:13,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-25 04:24:13,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 197. [2020-09-25 04:24:13,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-25 04:24:13,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 212 transitions. [2020-09-25 04:24:13,139 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 212 transitions. Word has length 53 [2020-09-25 04:24:13,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:13,139 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 212 transitions. [2020-09-25 04:24:13,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:24:13,140 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 212 transitions. [2020-09-25 04:24:13,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 04:24:13,140 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:13,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:24:13,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 04:24:13,141 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 04:24:13,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:13,142 INFO L82 PathProgramCache]: Analyzing trace with hash -604385608, now seen corresponding path program 1 times [2020-09-25 04:24:13,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:13,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661392591] [2020-09-25 04:24:13,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:13,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:13,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:13,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:13,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:13,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 04:24:13,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:24:13,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-09-25 04:24:13,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:13,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:13,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:24:13,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-25 04:24:13,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:24:13,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:13,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:13,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:13,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:13,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:13,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:13,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:24:13,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:13,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:13,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:13,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:13,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:13,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:13,551 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 04:24:13,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661392591] [2020-09-25 04:24:13,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:13,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:24:13,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537020105] [2020-09-25 04:24:13,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:24:13,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:13,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:24:13,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:24:13,554 INFO L87 Difference]: Start difference. First operand 197 states and 212 transitions. Second operand 6 states. [2020-09-25 04:24:13,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:13,881 INFO L93 Difference]: Finished difference Result 225 states and 242 transitions. [2020-09-25 04:24:13,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 04:24:13,882 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-09-25 04:24:13,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:13,884 INFO L225 Difference]: With dead ends: 225 [2020-09-25 04:24:13,884 INFO L226 Difference]: Without dead ends: 220 [2020-09-25 04:24:13,885 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 04:24:13,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-09-25 04:24:13,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 202. [2020-09-25 04:24:13,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-09-25 04:24:13,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 218 transitions. [2020-09-25 04:24:13,897 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 218 transitions. Word has length 54 [2020-09-25 04:24:13,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:13,898 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 218 transitions. [2020-09-25 04:24:13,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:24:13,898 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 218 transitions. [2020-09-25 04:24:13,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 04:24:13,899 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:13,899 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 04:24:13,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 04:24:13,899 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 04:24:13,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:13,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1636675303, now seen corresponding path program 1 times [2020-09-25 04:24:13,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:13,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [961333932] [2020-09-25 04:24:13,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:13,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:13,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:14,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:14,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:14,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:14,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:17,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:17,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 04:24:17,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:24:17,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3645 [2020-09-25 04:24:17,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:17,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:17,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:24:17,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 04:24:17,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 04:24:17,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:18,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:18,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:18,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:18,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:18,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:18,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:24:18,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:18,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:18,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:18,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:18,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:18,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:18,158 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 04:24:18,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [961333932] [2020-09-25 04:24:18,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:18,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:24:18,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603590043] [2020-09-25 04:24:18,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:24:18,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:18,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:24:18,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:24:18,160 INFO L87 Difference]: Start difference. First operand 202 states and 218 transitions. Second operand 10 states. [2020-09-25 04:24:19,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:19,316 INFO L93 Difference]: Finished difference Result 334 states and 360 transitions. [2020-09-25 04:24:19,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 04:24:19,317 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2020-09-25 04:24:19,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:19,321 INFO L225 Difference]: With dead ends: 334 [2020-09-25 04:24:19,321 INFO L226 Difference]: Without dead ends: 331 [2020-09-25 04:24:19,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2020-09-25 04:24:19,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2020-09-25 04:24:19,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 206. [2020-09-25 04:24:19,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-09-25 04:24:19,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 222 transitions. [2020-09-25 04:24:19,337 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 222 transitions. Word has length 57 [2020-09-25 04:24:19,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:19,337 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 222 transitions. [2020-09-25 04:24:19,337 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:24:19,338 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 222 transitions. [2020-09-25 04:24:19,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 04:24:19,338 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:19,339 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 04:24:19,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 04:24:19,339 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 04:24:19,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:19,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1845748070, now seen corresponding path program 1 times [2020-09-25 04:24:19,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:19,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972290053] [2020-09-25 04:24:19,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:19,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:19,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:19,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:19,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:20,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:20,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:20,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:20,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:22,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:22,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 04:24:22,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 04:24:22,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3039 [2020-09-25 04:24:22,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:22,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:22,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:24:22,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 04:24:22,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 04:24:22,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:22,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:22,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:22,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:22,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:22,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:22,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:24:22,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:22,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:22,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:22,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:22,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:22,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:22,469 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 04:24:22,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972290053] [2020-09-25 04:24:22,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:22,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:24:22,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736755532] [2020-09-25 04:24:22,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:24:22,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:22,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:24:22,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:24:22,471 INFO L87 Difference]: Start difference. First operand 206 states and 222 transitions. Second operand 6 states. [2020-09-25 04:24:22,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:22,878 INFO L93 Difference]: Finished difference Result 291 states and 314 transitions. [2020-09-25 04:24:22,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:24:22,879 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-09-25 04:24:22,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:22,881 INFO L225 Difference]: With dead ends: 291 [2020-09-25 04:24:22,881 INFO L226 Difference]: Without dead ends: 263 [2020-09-25 04:24:22,882 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 04:24:22,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-09-25 04:24:22,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 244. [2020-09-25 04:24:22,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-09-25 04:24:22,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 268 transitions. [2020-09-25 04:24:22,894 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 268 transitions. Word has length 57 [2020-09-25 04:24:22,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:22,895 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 268 transitions. [2020-09-25 04:24:22,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:24:22,895 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 268 transitions. [2020-09-25 04:24:22,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-25 04:24:22,896 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:22,896 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:24:22,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 04:24:22,896 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 04:24:22,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:22,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1792411396, now seen corresponding path program 1 times [2020-09-25 04:24:22,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:22,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839184843] [2020-09-25 04:24:22,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:22,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:23,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:23,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-25 04:24:23,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:23,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-25 04:24:23,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:23,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:23,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:24:23,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 04:24:23,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 04:24:23,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:23,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:23,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:23,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:23,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:23,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:23,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:24:23,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:23,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:23,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:23,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:23,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:23,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:23,162 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 04:24:23,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839184843] [2020-09-25 04:24:23,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:24:23,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 04:24:23,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744064188] [2020-09-25 04:24:23,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:24:23,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:23,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:24:23,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:24:23,164 INFO L87 Difference]: Start difference. First operand 244 states and 268 transitions. Second operand 7 states. [2020-09-25 04:24:23,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:23,747 INFO L93 Difference]: Finished difference Result 394 states and 430 transitions. [2020-09-25 04:24:23,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 04:24:23,748 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 59 [2020-09-25 04:24:23,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:23,750 INFO L225 Difference]: With dead ends: 394 [2020-09-25 04:24:23,750 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 04:24:23,752 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 04:24:23,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 04:24:23,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 245. [2020-09-25 04:24:23,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-25 04:24:23,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 267 transitions. [2020-09-25 04:24:23,771 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 267 transitions. Word has length 59 [2020-09-25 04:24:23,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:23,772 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 267 transitions. [2020-09-25 04:24:23,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:24:23,772 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 267 transitions. [2020-09-25 04:24:23,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 04:24:23,779 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:23,779 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:24:23,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 04:24:23,780 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 04:24:23,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:23,781 INFO L82 PathProgramCache]: Analyzing trace with hash -2093992957, now seen corresponding path program 1 times [2020-09-25 04:24:23,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:23,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573564502] [2020-09-25 04:24:23,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:23,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:23,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:25,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:25,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 04:24:25,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:24:25,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1396 [2020-09-25 04:24:25,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:25,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:25,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:24:25,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 04:24:25,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:24:25,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:25,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:25,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:25,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:25,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:25,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:25,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:25,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:24:25,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:25,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:25,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:25,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:25,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:25,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:25,337 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 04:24:25,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [573564502] [2020-09-25 04:24:25,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:25,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:24:25,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405973558] [2020-09-25 04:24:25,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:24:25,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:25,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:24:25,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:24:25,340 INFO L87 Difference]: Start difference. First operand 245 states and 267 transitions. Second operand 8 states. [2020-09-25 04:24:25,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:25,830 INFO L93 Difference]: Finished difference Result 263 states and 286 transitions. [2020-09-25 04:24:25,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:24:25,830 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-09-25 04:24:25,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:25,832 INFO L225 Difference]: With dead ends: 263 [2020-09-25 04:24:25,832 INFO L226 Difference]: Without dead ends: 258 [2020-09-25 04:24:25,833 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 04:24:25,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-09-25 04:24:25,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 234. [2020-09-25 04:24:25,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-25 04:24:25,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 255 transitions. [2020-09-25 04:24:25,854 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 255 transitions. Word has length 61 [2020-09-25 04:24:25,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:25,854 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 255 transitions. [2020-09-25 04:24:25,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:24:25,854 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 255 transitions. [2020-09-25 04:24:25,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 04:24:25,855 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:25,855 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 04:24:25,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-25 04:24:25,856 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 04:24:25,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:25,856 INFO L82 PathProgramCache]: Analyzing trace with hash -984681049, now seen corresponding path program 1 times [2020-09-25 04:24:25,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:25,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17387628] [2020-09-25 04:24:25,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:25,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:25,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:25,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:26,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:26,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:28,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:28,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:28,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:29,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:29,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:30,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:30,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:30,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 04:24:30,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 04:24:30,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 04:24:30,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:30,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:30,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:24:30,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-25 04:24:30,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 04:24:30,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:31,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:31,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:31,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:31,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:31,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:31,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:24:31,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:31,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:31,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:31,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:31,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:31,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:31,160 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 04:24:31,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17387628] [2020-09-25 04:24:31,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:31,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:24:31,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500868678] [2020-09-25 04:24:31,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:24:31,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:31,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:24:31,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:24:31,163 INFO L87 Difference]: Start difference. First operand 234 states and 255 transitions. Second operand 9 states. [2020-09-25 04:24:31,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:31,936 INFO L93 Difference]: Finished difference Result 295 states and 316 transitions. [2020-09-25 04:24:31,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 04:24:31,937 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-09-25 04:24:31,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:31,939 INFO L225 Difference]: With dead ends: 295 [2020-09-25 04:24:31,940 INFO L226 Difference]: Without dead ends: 292 [2020-09-25 04:24:31,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-09-25 04:24:31,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-09-25 04:24:31,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 243. [2020-09-25 04:24:31,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-09-25 04:24:31,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 265 transitions. [2020-09-25 04:24:31,952 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 265 transitions. Word has length 62 [2020-09-25 04:24:31,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:31,952 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 265 transitions. [2020-09-25 04:24:31,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:24:31,952 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 265 transitions. [2020-09-25 04:24:31,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 04:24:31,953 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:31,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:24:31,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-25 04:24:31,954 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:31,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:31,954 INFO L82 PathProgramCache]: Analyzing trace with hash -649286859, now seen corresponding path program 1 times [2020-09-25 04:24:31,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:31,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159803971] [2020-09-25 04:24:31,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:31,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:32,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:32,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:32,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 04:24:32,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:24:32,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 04:24:32,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:32,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:32,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:24:32,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-25 04:24:32,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 04:24:32,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:32,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:32,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:32,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:32,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:32,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:32,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:24:32,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:32,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:32,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:32,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:32,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:32,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:32,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:24:32,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159803971] [2020-09-25 04:24:32,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:32,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:24:32,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918789980] [2020-09-25 04:24:32,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:24:32,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:32,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:24:32,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:24:32,145 INFO L87 Difference]: Start difference. First operand 243 states and 265 transitions. Second operand 4 states. [2020-09-25 04:24:32,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:32,381 INFO L93 Difference]: Finished difference Result 296 states and 327 transitions. [2020-09-25 04:24:32,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 04:24:32,382 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 64 [2020-09-25 04:24:32,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:32,386 INFO L225 Difference]: With dead ends: 296 [2020-09-25 04:24:32,386 INFO L226 Difference]: Without dead ends: 294 [2020-09-25 04:24:32,386 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 04:24:32,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-09-25 04:24:32,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 280. [2020-09-25 04:24:32,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-09-25 04:24:32,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 309 transitions. [2020-09-25 04:24:32,399 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 309 transitions. Word has length 64 [2020-09-25 04:24:32,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:32,400 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 309 transitions. [2020-09-25 04:24:32,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:24:32,400 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 309 transitions. [2020-09-25 04:24:32,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 04:24:32,401 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:32,401 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:24:32,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-25 04:24:32,401 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:32,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:32,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1878952235, now seen corresponding path program 1 times [2020-09-25 04:24:32,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:32,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1210818558] [2020-09-25 04:24:32,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:32,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:32,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:32,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 04:24:32,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:32,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 04:24:32,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:32,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:32,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:24:32,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 04:24:32,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:24:32,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:32,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:32,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:32,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:32,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:32,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:32,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:24:32,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:32,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:32,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:32,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:32,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:32,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:32,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:24:32,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1210818558] [2020-09-25 04:24:32,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:32,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:24:32,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905733597] [2020-09-25 04:24:32,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:24:32,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:32,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:24:32,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:24:32,536 INFO L87 Difference]: Start difference. First operand 280 states and 309 transitions. Second operand 4 states. [2020-09-25 04:24:32,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:32,756 INFO L93 Difference]: Finished difference Result 467 states and 521 transitions. [2020-09-25 04:24:32,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 04:24:32,757 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 64 [2020-09-25 04:24:32,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:32,758 INFO L225 Difference]: With dead ends: 467 [2020-09-25 04:24:32,758 INFO L226 Difference]: Without dead ends: 323 [2020-09-25 04:24:32,759 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 04:24:32,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-09-25 04:24:32,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 273. [2020-09-25 04:24:32,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-09-25 04:24:32,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 302 transitions. [2020-09-25 04:24:32,771 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 302 transitions. Word has length 64 [2020-09-25 04:24:32,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:32,772 INFO L479 AbstractCegarLoop]: Abstraction has 273 states and 302 transitions. [2020-09-25 04:24:32,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:24:32,772 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 302 transitions. [2020-09-25 04:24:32,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-25 04:24:32,773 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:32,773 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:24:32,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-25 04:24:32,773 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:32,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:32,774 INFO L82 PathProgramCache]: Analyzing trace with hash 103376083, now seen corresponding path program 1 times [2020-09-25 04:24:32,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:32,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [338565524] [2020-09-25 04:24:32,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:32,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:32,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:32,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:33,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:33,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:33,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:35,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:35,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:35,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:36,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:36,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:37,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:37,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-25 04:24:37,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 04:24:37,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 04:24:37,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:37,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:37,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:24:37,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 04:24:37,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 04:24:37,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:38,118 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 20 [2020-09-25 04:24:38,297 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 23 [2020-09-25 04:24:38,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:38,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:38,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:38,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:38,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:38,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:38,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:24:38,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:38,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:38,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:38,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:38,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:38,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:38,533 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 04:24:38,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [338565524] [2020-09-25 04:24:38,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:38,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:24:38,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640238916] [2020-09-25 04:24:38,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:24:38,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:38,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:24:38,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:24:38,535 INFO L87 Difference]: Start difference. First operand 273 states and 302 transitions. Second operand 9 states. [2020-09-25 04:24:39,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:39,296 INFO L93 Difference]: Finished difference Result 303 states and 329 transitions. [2020-09-25 04:24:39,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 04:24:39,296 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2020-09-25 04:24:39,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:39,299 INFO L225 Difference]: With dead ends: 303 [2020-09-25 04:24:39,299 INFO L226 Difference]: Without dead ends: 300 [2020-09-25 04:24:39,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-09-25 04:24:39,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-09-25 04:24:39,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 277. [2020-09-25 04:24:39,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-25 04:24:39,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 306 transitions. [2020-09-25 04:24:39,312 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 306 transitions. Word has length 66 [2020-09-25 04:24:39,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:39,313 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 306 transitions. [2020-09-25 04:24:39,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:24:39,313 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 306 transitions. [2020-09-25 04:24:39,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 04:24:39,314 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:39,314 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:39,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-25 04:24:39,314 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:39,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:39,315 INFO L82 PathProgramCache]: Analyzing trace with hash -201437452, now seen corresponding path program 1 times [2020-09-25 04:24:39,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:39,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1862614706] [2020-09-25 04:24:39,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:39,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:39,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:39,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:39,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 04:24:39,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:24:39,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 525 [2020-09-25 04:24:39,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:39,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:39,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:24:39,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 04:24:39,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 04:24:39,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:39,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:39,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:39,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:39,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:39,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:39,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:24:39,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:39,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:39,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:39,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:39,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:39,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:39,956 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 04:24:39,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1862614706] [2020-09-25 04:24:39,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:24:39,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 04:24:39,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212913095] [2020-09-25 04:24:39,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:24:39,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:39,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:24:39,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:24:39,958 INFO L87 Difference]: Start difference. First operand 277 states and 306 transitions. Second operand 7 states. [2020-09-25 04:24:40,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:40,414 INFO L93 Difference]: Finished difference Result 329 states and 356 transitions. [2020-09-25 04:24:40,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 04:24:40,416 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 67 [2020-09-25 04:24:40,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:40,418 INFO L225 Difference]: With dead ends: 329 [2020-09-25 04:24:40,418 INFO L226 Difference]: Without dead ends: 250 [2020-09-25 04:24:40,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:24:40,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-09-25 04:24:40,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 236. [2020-09-25 04:24:40,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-09-25 04:24:40,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 260 transitions. [2020-09-25 04:24:40,430 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 260 transitions. Word has length 67 [2020-09-25 04:24:40,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:40,430 INFO L479 AbstractCegarLoop]: Abstraction has 236 states and 260 transitions. [2020-09-25 04:24:40,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:24:40,430 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 260 transitions. [2020-09-25 04:24:40,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 04:24:40,431 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:40,431 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:40,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-09-25 04:24:40,432 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:40,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:40,432 INFO L82 PathProgramCache]: Analyzing trace with hash 124193311, now seen corresponding path program 1 times [2020-09-25 04:24:40,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:40,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2094202514] [2020-09-25 04:24:40,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:40,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:40,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:40,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:40,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:40,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:40,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking...