/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:04:16,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:04:16,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:04:16,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:04:16,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:04:16,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:04:16,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:04:16,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:04:16,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:04:16,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:04:16,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:04:16,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:04:16,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:04:16,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:04:16,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:04:16,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:04:16,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:04:16,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:04:16,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:04:16,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:04:16,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:04:16,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:04:16,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:04:16,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:04:16,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:04:16,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:04:16,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:04:16,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:04:16,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:04:16,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:04:16,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:04:16,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:04:16,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:04:16,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:04:16,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:04:16,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:04:16,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:04:16,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:04:16,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:04:16,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:04:16,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:04:16,676 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 10:04:16,702 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:04:16,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:04:16,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:04:16,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:04:16,704 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:04:16,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:04:16,704 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:04:16,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:04:16,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:04:16,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:04:16,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:04:16,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:04:16,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:04:16,706 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:04:16,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:04:16,706 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:04:16,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:04:16,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:04:16,707 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:04:16,707 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:04:16,707 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:04:16,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:04:16,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:04:16,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:04:16,708 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:04:16,710 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:04:16,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:04:16,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:04:16,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:04:16,710 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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 10:04:17,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:04:17,224 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:04:17,228 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:04:17,229 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:04:17,230 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:04:17,231 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i [2020-09-25 10:04:17,327 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a81e1744c/cd036713904d48ddbe3cd35511b47048/FLAG57f14152d [2020-09-25 10:04:17,922 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:04:17,923 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i [2020-09-25 10:04:17,942 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a81e1744c/cd036713904d48ddbe3cd35511b47048/FLAG57f14152d [2020-09-25 10:04:18,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a81e1744c/cd036713904d48ddbe3cd35511b47048 [2020-09-25 10:04:18,217 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:04:18,223 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:04:18,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:04:18,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:04:18,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:04:18,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:04:18" (1/1) ... [2020-09-25 10:04:18,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ccc9065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:04:18, skipping insertion in model container [2020-09-25 10:04:18,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:04:18" (1/1) ... [2020-09-25 10:04:18,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:04:18,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:04:18,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:04:18,730 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:04:18,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:04:18,905 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:04:18,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:04:18 WrapperNode [2020-09-25 10:04:18,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:04:18,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:04:18,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:04:18,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:04:18,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:04:18" (1/1) ... [2020-09-25 10:04:18,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:04:18" (1/1) ... [2020-09-25 10:04:18,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:04:18" (1/1) ... [2020-09-25 10:04:18,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:04:18" (1/1) ... [2020-09-25 10:04:19,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:04:18" (1/1) ... [2020-09-25 10:04:19,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:04:18" (1/1) ... [2020-09-25 10:04:19,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:04:18" (1/1) ... [2020-09-25 10:04:19,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:04:19,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:04:19,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:04:19,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:04:19,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:04:18" (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 10:04:19,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:04:19,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:04:19,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-25 10:04:19,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-09-25 10:04:19,121 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-09-25 10:04:19,121 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-09-25 10:04:19,122 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-09-25 10:04:19,123 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:04:19,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:04:19,123 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-25 10:04:19,123 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-09-25 10:04:19,123 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-09-25 10:04:19,124 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-09-25 10:04:19,124 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-09-25 10:04:19,124 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-09-25 10:04:19,125 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-09-25 10:04:19,125 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-09-25 10:04:19,125 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-09-25 10:04:19,125 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-09-25 10:04:19,126 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-09-25 10:04:19,126 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-09-25 10:04:19,126 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-09-25 10:04:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-09-25 10:04:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-09-25 10:04:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-09-25 10:04:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-09-25 10:04:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-09-25 10:04:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-09-25 10:04:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-09-25 10:04:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-09-25 10:04:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-09-25 10:04:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-09-25 10:04:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-09-25 10:04:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-09-25 10:04:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-09-25 10:04:19,130 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-09-25 10:04:19,130 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-09-25 10:04:19,130 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-09-25 10:04:19,130 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-25 10:04:19,130 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-09-25 10:04:19,130 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-09-25 10:04:19,130 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-09-25 10:04:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-09-25 10:04:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-09-25 10:04:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-09-25 10:04:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-09-25 10:04:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-09-25 10:04:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-09-25 10:04:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:04:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-09-25 10:04:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-09-25 10:04:19,133 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-09-25 10:04:19,134 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-09-25 10:04:19,134 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-25 10:04:19,134 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-09-25 10:04:19,134 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-09-25 10:04:19,134 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-09-25 10:04:19,134 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-09-25 10:04:19,135 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-09-25 10:04:19,135 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-09-25 10:04:19,135 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-09-25 10:04:19,135 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-09-25 10:04:19,135 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-09-25 10:04:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-09-25 10:04:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-25 10:04:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-09-25 10:04:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-09-25 10:04:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-09-25 10:04:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-09-25 10:04:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-09-25 10:04:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-09-25 10:04:19,139 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-09-25 10:04:19,139 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-09-25 10:04:19,139 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-09-25 10:04:19,139 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-09-25 10:04:19,139 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-09-25 10:04:19,139 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-09-25 10:04:19,139 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-09-25 10:04:19,140 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-09-25 10:04:19,140 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-09-25 10:04:19,140 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-09-25 10:04:19,140 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-09-25 10:04:19,141 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-09-25 10:04:19,141 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-09-25 10:04:19,141 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-09-25 10:04:19,141 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-09-25 10:04:19,141 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-09-25 10:04:19,142 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-09-25 10:04:19,142 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-09-25 10:04:19,142 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-09-25 10:04:19,142 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-09-25 10:04:19,142 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-09-25 10:04:19,142 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-09-25 10:04:19,142 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-09-25 10:04:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-09-25 10:04:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-09-25 10:04:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-09-25 10:04:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-09-25 10:04:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-09-25 10:04:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-09-25 10:04:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-09-25 10:04:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-09-25 10:04:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-09-25 10:04:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-09-25 10:04:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-09-25 10:04:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-09-25 10:04:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-09-25 10:04:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-09-25 10:04:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-09-25 10:04:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-09-25 10:04:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-09-25 10:04:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:04:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 10:04:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 10:04:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:04:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 10:04:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-09-25 10:04:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 10:04:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-09-25 10:04:19,148 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-09-25 10:04:19,148 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-09-25 10:04:19,148 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-09-25 10:04:19,148 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-09-25 10:04:19,149 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-09-25 10:04:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-09-25 10:04:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-09-25 10:04:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-09-25 10:04:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-09-25 10:04:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-09-25 10:04:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:04:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-09-25 10:04:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-09-25 10:04:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-09-25 10:04:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-09-25 10:04:19,156 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:04:19,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:04:19,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:04:19,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 10:04:19,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:04:19,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:04:19,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:04:19,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:04:19,655 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:04:19,656 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 10:04:19,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:04:19 BoogieIcfgContainer [2020-09-25 10:04:19,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:04:19,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:04:19,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:04:19,666 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:04:19,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:04:18" (1/3) ... [2020-09-25 10:04:19,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b5f450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:04:19, skipping insertion in model container [2020-09-25 10:04:19,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:04:18" (2/3) ... [2020-09-25 10:04:19,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b5f450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:04:19, skipping insertion in model container [2020-09-25 10:04:19,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:04:19" (3/3) ... [2020-09-25 10:04:19,670 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.c_1.i [2020-09-25 10:04:19,681 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:04:19,692 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:04:19,714 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:04:19,742 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:04:19,742 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:04:19,742 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:04:19,742 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:04:19,742 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:04:19,743 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:04:19,743 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:04:19,743 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:04:19,766 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2020-09-25 10:04:19,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-25 10:04:19,774 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:04:19,775 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:04:19,775 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:04:19,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:04:19,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1490968618, now seen corresponding path program 1 times [2020-09-25 10:04:19,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:04:19,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [62905959] [2020-09-25 10:04:19,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:04:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:20,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:20,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:20,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 10:04:20,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:20,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-09-25 10:04:20,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:20,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:20,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:04:20,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 10:04:20,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:04:20,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:04:20,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:04:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:20,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:20,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:20,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:04:20,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:20,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 10:04:20,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:20,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:20,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:04:20,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:20,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:04:20,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:20,552 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 10:04:20,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [62905959] [2020-09-25 10:04:20,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:04:20,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 10:04:20,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080550166] [2020-09-25 10:04:20,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 10:04:20,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:04:20,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 10:04:20,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:04:20,583 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 7 states. [2020-09-25 10:04:21,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:04:21,036 INFO L93 Difference]: Finished difference Result 128 states and 157 transitions. [2020-09-25 10:04:21,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 10:04:21,039 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-09-25 10:04:21,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:04:21,054 INFO L225 Difference]: With dead ends: 128 [2020-09-25 10:04:21,054 INFO L226 Difference]: Without dead ends: 67 [2020-09-25 10:04:21,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-09-25 10:04:21,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-25 10:04:21,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2020-09-25 10:04:21,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 10:04:21,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2020-09-25 10:04:21,124 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 21 [2020-09-25 10:04:21,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:04:21,125 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2020-09-25 10:04:21,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 10:04:21,125 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2020-09-25 10:04:21,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 10:04:21,129 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:04:21,129 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:04:21,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:04:21,130 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:04:21,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:04:21,130 INFO L82 PathProgramCache]: Analyzing trace with hash -114203518, now seen corresponding path program 1 times [2020-09-25 10:04:21,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:04:21,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [48590302] [2020-09-25 10:04:21,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:04:21,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:21,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:21,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:21,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:25,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:25,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 10:04:25,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:04:25,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4106 [2020-09-25 10:04:25,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:25,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:25,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:04:25,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 10:04:25,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 10:04:25,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:04:25,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:04:25,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:25,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:25,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:25,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:04:25,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:25,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 10:04:25,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:25,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:25,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:25,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:25,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:04:25,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:25,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:04:25,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:25,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:25,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:25,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:25,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:25,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 10:04:25,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:25,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:25,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:25,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:25,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:04:25,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:04:25,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:25,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:25,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:25,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:25,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:25,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 10:04:25,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:25,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:25,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:04:25,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:25,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:04:25,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:25,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 10:04:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:25,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:25,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:25,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:25,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:25,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 10:04:25,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:25,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:25,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:25,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:25,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:04:25,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:04:25,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:25,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:25,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:25,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:25,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:25,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 10:04:25,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:25,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:25,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:04:25,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:25,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:04:25,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:25,897 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 10:04:25,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [48590302] [2020-09-25 10:04:25,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:04:25,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:04:25,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126338613] [2020-09-25 10:04:25,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:04:25,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:04:25,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:04:25,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:04:25,904 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand 8 states. [2020-09-25 10:04:26,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:04:26,591 INFO L93 Difference]: Finished difference Result 104 states and 119 transitions. [2020-09-25 10:04:26,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:04:26,592 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-09-25 10:04:26,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:04:26,596 INFO L225 Difference]: With dead ends: 104 [2020-09-25 10:04:26,597 INFO L226 Difference]: Without dead ends: 101 [2020-09-25 10:04:26,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 10:04:26,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-25 10:04:26,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 93. [2020-09-25 10:04:26,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-25 10:04:26,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 109 transitions. [2020-09-25 10:04:26,651 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 109 transitions. Word has length 61 [2020-09-25 10:04:26,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:04:26,652 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 109 transitions. [2020-09-25 10:04:26,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:04:26,652 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 109 transitions. [2020-09-25 10:04:26,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 10:04:26,656 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:04:26,657 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:04:26,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:04:26,657 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:04:26,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:04:26,658 INFO L82 PathProgramCache]: Analyzing trace with hash -116378698, now seen corresponding path program 1 times [2020-09-25 10:04:26,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:04:26,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [895798954] [2020-09-25 10:04:26,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:04:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:26,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:26,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:27,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:28,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:31,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:31,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 10:04:31,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:04:31,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 10:04:31,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:31,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:31,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 10:04:31,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 10:04:31,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:04:31,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:31,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:04:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:31,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:31,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:31,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:04:31,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:31,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 10:04:31,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:31,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:31,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:31,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:31,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:04:31,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:31,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:04:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:31,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:31,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:31,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:31,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:31,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 10:04:31,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:31,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:31,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:31,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:31,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:04:31,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:31,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:31,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:31,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:31,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:31,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:31,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:04:31,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:31,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:31,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:04:31,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:31,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:04:31,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:31,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 10:04:31,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:31,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:32,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:32,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:32,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:32,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 10:04:32,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:32,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:32,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:32,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:32,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:04:32,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:32,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:32,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:32,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:32,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:32,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:32,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:04:32,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:32,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:32,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:04:32,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:32,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:04:32,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:32,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 10:04:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:32,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:32,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:32,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 10:04:32,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:32,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 10:04:32,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:32,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:32,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:04:32,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:32,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 10:04:32,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:32,107 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 10:04:32,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [895798954] [2020-09-25 10:04:32,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:04:32,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 10:04:32,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483058733] [2020-09-25 10:04:32,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 10:04:32,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:04:32,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 10:04:32,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:04:32,111 INFO L87 Difference]: Start difference. First operand 93 states and 109 transitions. Second operand 9 states. [2020-09-25 10:04:32,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:04:32,753 INFO L93 Difference]: Finished difference Result 112 states and 127 transitions. [2020-09-25 10:04:32,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 10:04:32,754 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-09-25 10:04:32,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:04:32,757 INFO L225 Difference]: With dead ends: 112 [2020-09-25 10:04:32,757 INFO L226 Difference]: Without dead ends: 108 [2020-09-25 10:04:32,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-25 10:04:32,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-09-25 10:04:32,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 101. [2020-09-25 10:04:32,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-25 10:04:32,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 116 transitions. [2020-09-25 10:04:32,775 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 116 transitions. Word has length 70 [2020-09-25 10:04:32,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:04:32,775 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 116 transitions. [2020-09-25 10:04:32,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 10:04:32,776 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2020-09-25 10:04:32,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 10:04:32,778 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:04:32,778 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:04:32,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:04:32,779 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:04:32,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:04:32,779 INFO L82 PathProgramCache]: Analyzing trace with hash 2087874581, now seen corresponding path program 1 times [2020-09-25 10:04:32,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:04:32,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [964194991] [2020-09-25 10:04:32,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:04:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:32,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:32,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:33,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:34,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:36,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:36,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 10:04:36,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:04:36,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3723 [2020-09-25 10:04:36,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:36,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:36,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 10:04:36,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 10:04:36,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 10:04:36,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:36,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:04:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:36,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:36,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:36,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:04:36,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:36,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 10:04:36,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:36,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:36,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:36,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:36,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:04:36,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:36,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:04:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:36,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:36,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:36,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:36,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:36,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 10:04:36,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:36,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:36,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:04:36,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:36,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:04:36,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:36,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:36,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:36,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:36,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:36,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:36,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 10:04:36,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:36,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:36,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:04:36,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:36,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 10:04:36,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:36,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 10:04:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:36,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:36,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:36,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:36,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:36,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 10:04:36,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:36,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:36,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:36,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:36,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:04:36,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:36,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:36,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:36,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:36,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:36,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:36,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:04:36,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:36,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:36,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:04:36,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:36,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:04:36,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:36,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 10:04:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:36,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:37,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:37,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:04:37,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:37,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 10:04:37,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:37,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:37,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:04:37,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:37,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 10:04:37,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:37,121 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 10:04:37,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [964194991] [2020-09-25 10:04:37,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:04:37,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 10:04:37,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559770123] [2020-09-25 10:04:37,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 10:04:37,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:04:37,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 10:04:37,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2020-09-25 10:04:37,126 INFO L87 Difference]: Start difference. First operand 101 states and 116 transitions. Second operand 16 states. [2020-09-25 10:04:38,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:04:38,742 INFO L93 Difference]: Finished difference Result 184 states and 218 transitions. [2020-09-25 10:04:38,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 10:04:38,743 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 71 [2020-09-25 10:04:38,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:04:38,745 INFO L225 Difference]: With dead ends: 184 [2020-09-25 10:04:38,745 INFO L226 Difference]: Without dead ends: 117 [2020-09-25 10:04:38,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=160, Invalid=896, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 10:04:38,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-09-25 10:04:38,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 107. [2020-09-25 10:04:38,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-09-25 10:04:38,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 122 transitions. [2020-09-25 10:04:38,764 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 122 transitions. Word has length 71 [2020-09-25 10:04:38,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:04:38,765 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 122 transitions. [2020-09-25 10:04:38,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 10:04:38,765 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 122 transitions. [2020-09-25 10:04:38,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 10:04:38,766 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:04:38,766 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:04:38,766 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:04:38,767 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:04:38,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:04:38,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1230540462, now seen corresponding path program 1 times [2020-09-25 10:04:38,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:04:38,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [475535197] [2020-09-25 10:04:38,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:04:38,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:38,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:38,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:39,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:41,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:41,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 10:04:41,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:04:41,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2373 [2020-09-25 10:04:41,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:41,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:41,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 10:04:41,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 10:04:41,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 10:04:41,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:41,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:04:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:41,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:41,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:41,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:04:41,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:41,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 10:04:41,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:41,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:41,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:41,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:41,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:04:41,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:41,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:04:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:41,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:41,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:41,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:41,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:41,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 10:04:41,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:41,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:41,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:04:41,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:41,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 10:04:41,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:41,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:41,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:41,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:41,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:41,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:41,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 10:04:41,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:41,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:41,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:04:41,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:41,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 10:04:41,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:41,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 10:04:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:41,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:41,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:41,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:41,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:41,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 10:04:41,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:41,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:41,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:04:41,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:41,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:04:41,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:41,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:41,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:41,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:41,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:41,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:41,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 10:04:41,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:41,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:41,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:04:41,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:41,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 10:04:41,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:41,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 10:04:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:41,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:41,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:41,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:04:41,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:41,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 10:04:41,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:41,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:41,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:04:41,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:41,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 10:04:41,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:41,955 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 10:04:41,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [475535197] [2020-09-25 10:04:41,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:04:41,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-25 10:04:41,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685463053] [2020-09-25 10:04:41,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-25 10:04:41,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:04:41,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-25 10:04:41,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=545, Unknown=0, NotChecked=0, Total=600 [2020-09-25 10:04:41,958 INFO L87 Difference]: Start difference. First operand 107 states and 122 transitions. Second operand 25 states. [2020-09-25 10:04:44,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:04:44,435 INFO L93 Difference]: Finished difference Result 146 states and 184 transitions. [2020-09-25 10:04:44,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-25 10:04:44,435 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 71 [2020-09-25 10:04:44,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:04:44,438 INFO L225 Difference]: With dead ends: 146 [2020-09-25 10:04:44,438 INFO L226 Difference]: Without dead ends: 139 [2020-09-25 10:04:44,442 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=273, Invalid=2589, Unknown=0, NotChecked=0, Total=2862 [2020-09-25 10:04:44,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-09-25 10:04:44,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 128. [2020-09-25 10:04:44,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-25 10:04:44,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 155 transitions. [2020-09-25 10:04:44,481 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 155 transitions. Word has length 71 [2020-09-25 10:04:44,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:04:44,481 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 155 transitions. [2020-09-25 10:04:44,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-25 10:04:44,481 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 155 transitions. [2020-09-25 10:04:44,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 10:04:44,484 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:04:44,484 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:04:44,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 10:04:44,484 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:04:44,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:04:44,485 INFO L82 PathProgramCache]: Analyzing trace with hash 983151375, now seen corresponding path program 1 times [2020-09-25 10:04:44,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:04:44,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [105215646] [2020-09-25 10:04:44,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:04:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:44,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:45,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:45,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 10:04:45,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:45,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 838 [2020-09-25 10:04:45,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:45,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:45,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 10:04:45,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 10:04:45,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 10:04:45,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:45,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:04:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:45,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:45,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:45,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:04:45,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:45,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 10:04:45,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:45,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:45,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:04:45,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:45,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:04:45,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:45,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:04:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:45,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:45,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:45,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:45,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:45,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 10:04:45,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:45,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:45,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:04:45,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:45,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 10:04:45,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:45,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:45,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:45,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:45,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:45,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:45,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 10:04:45,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:45,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:45,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:04:45,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:45,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 10:04:45,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:45,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 10:04:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:45,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:45,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:45,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:45,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:45,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 10:04:45,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:45,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:45,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:04:45,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:45,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 10:04:45,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:45,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:45,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:45,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:45,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:45,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:45,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 10:04:45,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:45,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:45,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:04:45,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:45,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 10:04:45,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:46,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 10:04:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:46,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:46,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:46,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:04:46,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:46,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 10:04:46,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:46,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:46,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:04:46,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:46,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 10:04:46,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:46,134 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 10:04:46,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [105215646] [2020-09-25 10:04:46,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:04:46,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 10:04:46,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070782402] [2020-09-25 10:04:46,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 10:04:46,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:04:46,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 10:04:46,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-09-25 10:04:46,138 INFO L87 Difference]: Start difference. First operand 128 states and 155 transitions. Second operand 23 states. [2020-09-25 10:04:47,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:04:47,836 INFO L93 Difference]: Finished difference Result 149 states and 181 transitions. [2020-09-25 10:04:47,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 10:04:47,836 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 71 [2020-09-25 10:04:47,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:04:47,839 INFO L225 Difference]: With dead ends: 149 [2020-09-25 10:04:47,839 INFO L226 Difference]: Without dead ends: 132 [2020-09-25 10:04:47,840 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=188, Invalid=1618, Unknown=0, NotChecked=0, Total=1806 [2020-09-25 10:04:47,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-09-25 10:04:47,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 99. [2020-09-25 10:04:47,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-25 10:04:47,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 110 transitions. [2020-09-25 10:04:47,853 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 110 transitions. Word has length 71 [2020-09-25 10:04:47,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:04:47,853 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 110 transitions. [2020-09-25 10:04:47,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 10:04:47,854 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 110 transitions. [2020-09-25 10:04:47,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 10:04:47,856 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:04:47,856 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:04:47,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 10:04:47,856 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:04:47,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:04:47,857 INFO L82 PathProgramCache]: Analyzing trace with hash -610117025, now seen corresponding path program 1 times [2020-09-25 10:04:47,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:04:47,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381463340] [2020-09-25 10:04:47,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:04:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:47,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:48,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:48,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:49,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:49,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:52,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:52,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 10:04:52,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:04:52,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 10:04:52,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:52,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:52,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 10:04:52,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 10:04:52,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 10:04:52,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:53,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:04:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:53,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:53,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:53,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:04:53,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:53,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 10:04:53,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:53,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:53,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:53,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:53,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:04:53,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:53,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:04:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:53,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:53,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:53,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:53,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:53,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 10:04:53,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:53,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:53,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:53,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:53,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:04:53,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:53,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:53,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:53,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:53,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:53,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:53,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:04:53,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:53,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:53,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:04:53,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:53,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:04:53,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:53,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 10:04:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:53,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:53,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:53,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:53,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:53,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 10:04:53,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:53,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:53,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:04:53,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:53,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:04:53,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:53,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:53,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:53,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:53,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:53,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:53,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 10:04:53,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:53,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:53,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:04:53,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:53,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 10:04:53,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:53,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 10:04:53,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:53,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:53,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:53,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:53,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 10:04:53,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:04:53,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 10:04:53,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:53,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:53,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:04:53,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:53,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 10:04:53,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:53,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 10:04:53,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:53,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:53,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:53,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:04:53,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:53,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 10:04:53,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:53,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:53,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:04:53,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:53,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 10:04:53,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:53,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 10:04:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:53,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:53,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:53,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:53,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:04:53,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:04:53,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 10:04:53,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:53,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:53,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:04:53,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:53,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:04:53,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:04:53,541 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 10:04:53,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381463340] [2020-09-25 10:04:53,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:04:53,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 10:04:53,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865035911] [2020-09-25 10:04:53,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 10:04:53,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:04:53,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 10:04:53,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2020-09-25 10:04:53,544 INFO L87 Difference]: Start difference. First operand 99 states and 110 transitions. Second operand 16 states. [2020-09-25 10:04:54,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:04:54,931 INFO L93 Difference]: Finished difference Result 173 states and 196 transitions. [2020-09-25 10:04:54,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 10:04:54,933 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 85 [2020-09-25 10:04:54,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:04:54,935 INFO L225 Difference]: With dead ends: 173 [2020-09-25 10:04:54,935 INFO L226 Difference]: Without dead ends: 111 [2020-09-25 10:04:54,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=160, Invalid=896, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 10:04:54,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-09-25 10:04:54,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 89. [2020-09-25 10:04:54,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-09-25 10:04:54,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2020-09-25 10:04:54,946 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 85 [2020-09-25 10:04:54,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:04:54,947 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2020-09-25 10:04:54,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 10:04:54,947 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2020-09-25 10:04:54,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 10:04:54,949 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:04:54,949 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:04:54,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 10:04:54,950 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:04:54,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:04:54,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1660138148, now seen corresponding path program 1 times [2020-09-25 10:04:54,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:04:54,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1196896524] [2020-09-25 10:04:54,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:04:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:54,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:55,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:57,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:57,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 10:04:57,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:04:57,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2150 [2020-09-25 10:04:57,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:57,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:57,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 10:04:57,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 10:04:57,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 10:04:57,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:57,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:04:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:57,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:57,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:57,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:04:57,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:57,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:04:57,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:57,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:57,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:04:57,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:57,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:04:57,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:57,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:04:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:57,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:57,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:57,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:57,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:57,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 10:04:57,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:57,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:57,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:04:57,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:57,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 10:04:57,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:57,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:57,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:57,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:57,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:57,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:57,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 10:04:57,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:57,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:04:57,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:57,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 10:04:57,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:57,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 10:04:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:57,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:57,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:57,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:04:57,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:57,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 10:04:57,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:57,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:57,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:04:57,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:57,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 10:04:57,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:57,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:04:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:57,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:57,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:57,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:04:57,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:57,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 10:04:57,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:57,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:57,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:04:57,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:57,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 10:04:57,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:57,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 10:04:57,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:57,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:57,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:57,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 10:04:57,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:57,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:04:57,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:57,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:57,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:04:57,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:57,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 10:04:57,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:57,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 10:04:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:57,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:57,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:57,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:04:57,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:57,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 10:04:57,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:57,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:57,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:04:57,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:04:57,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 10:04:57,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:57,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 10:04:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:57,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:57,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:04:57,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:04:57,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:04:57,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:04:57,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:04:57,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:04:57,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:04:57,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:04:57,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:04:57,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:04:57,807 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 10:04:57,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1196896524] [2020-09-25 10:04:57,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:04:57,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-25 10:04:57,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690891252] [2020-09-25 10:04:57,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-25 10:04:57,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:04:57,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-25 10:04:57,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2020-09-25 10:04:57,809 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand 24 states. [2020-09-25 10:04:59,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:04:59,322 INFO L93 Difference]: Finished difference Result 104 states and 114 transitions. [2020-09-25 10:04:59,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 10:04:59,323 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 85 [2020-09-25 10:04:59,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:04:59,325 INFO L225 Difference]: With dead ends: 104 [2020-09-25 10:04:59,325 INFO L226 Difference]: Without dead ends: 99 [2020-09-25 10:04:59,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=210, Invalid=1682, Unknown=0, NotChecked=0, Total=1892 [2020-09-25 10:04:59,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-09-25 10:04:59,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2020-09-25 10:04:59,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-25 10:04:59,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 107 transitions. [2020-09-25 10:04:59,337 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 107 transitions. Word has length 85 [2020-09-25 10:04:59,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:04:59,337 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 107 transitions. [2020-09-25 10:04:59,337 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-25 10:04:59,337 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 107 transitions. [2020-09-25 10:04:59,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 10:04:59,339 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:04:59,339 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:04:59,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 10:04:59,339 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:04:59,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:04:59,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1173492322, now seen corresponding path program 2 times [2020-09-25 10:04:59,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:04:59,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1684388507] [2020-09-25 10:04:59,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:04:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:04:59,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:04:59,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:00,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:00,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 10:05:00,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:05:00,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1255 [2020-09-25 10:05:00,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:00,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:00,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:05:00,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-25 10:05:00,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 10:05:00,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:00,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:05:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:00,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:00,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:00,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:05:00,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:00,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:05:00,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:00,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:00,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:00,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:00,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:00,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:00,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:05:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:00,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:00,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:00,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:05:00,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:00,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:05:00,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:00,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:00,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:00,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:00,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:00,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:00,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:05:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:00,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:00,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:00,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:05:00,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:00,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:05:00,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:00,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:00,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:00,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:00,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:00,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:00,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 10:05:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:00,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:00,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:00,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:05:00,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:00,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:05:00,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:00,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:00,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:00,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:00,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:00,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:00,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:05:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:00,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:00,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:00,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:05:00,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:00,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:05:00,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:00,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:00,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:00,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:00,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:00,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:00,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 10:05:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:00,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:00,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:00,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:05:00,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:00,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 10:05:00,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:00,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:00,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:05:00,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:00,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 10:05:00,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:00,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 10:05:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:00,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:00,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:00,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 10:05:00,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:00,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 10:05:00,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:00,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:00,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:05:00,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:05:00,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 10:05:00,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:00,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 10:05:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:00,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:00,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:00,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:05:00,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:00,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 10:05:00,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:00,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:00,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:05:00,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:05:00,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:05:00,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:00,914 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-25 10:05:00,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1684388507] [2020-09-25 10:05:00,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:05:00,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 10:05:00,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657007085] [2020-09-25 10:05:00,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 10:05:00,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:05:00,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 10:05:00,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:05:00,916 INFO L87 Difference]: Start difference. First operand 98 states and 107 transitions. Second operand 10 states. [2020-09-25 10:05:01,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:05:01,496 INFO L93 Difference]: Finished difference Result 113 states and 121 transitions. [2020-09-25 10:05:01,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:05:01,497 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-09-25 10:05:01,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:05:01,498 INFO L225 Difference]: With dead ends: 113 [2020-09-25 10:05:01,498 INFO L226 Difference]: Without dead ends: 97 [2020-09-25 10:05:01,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2020-09-25 10:05:01,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-09-25 10:05:01,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-09-25 10:05:01,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-09-25 10:05:01,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2020-09-25 10:05:01,508 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 85 [2020-09-25 10:05:01,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:05:01,508 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2020-09-25 10:05:01,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 10:05:01,509 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2020-09-25 10:05:01,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 10:05:01,510 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:05:01,510 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:05:01,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 10:05:01,511 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:05:01,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:05:01,511 INFO L82 PathProgramCache]: Analyzing trace with hash 2046230471, now seen corresponding path program 1 times [2020-09-25 10:05:01,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:05:01,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [990385085] [2020-09-25 10:05:01,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:05:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:01,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:01,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:01,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:04,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:05,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:06,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:06,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 10:05:06,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:05:06,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 10:05:06,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:06,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:06,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 10:05:06,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 10:05:06,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 10:05:06,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:06,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:05:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:06,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:06,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:06,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:05:06,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:06,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 10:05:06,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:06,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:06,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:05:06,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:06,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:05:06,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:06,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:05:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:06,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:06,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:06,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:05:06,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:06,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 10:05:06,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:06,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:06,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:05:06,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:06,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:05:06,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:06,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:05:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:06,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:06,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:06,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:05:06,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:06,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:05:06,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:06,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:06,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:06,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:06,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:06,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:06,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 10:05:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:06,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:06,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:06,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:05:06,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:06,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 10:05:06,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:06,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:06,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:05:06,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:06,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:05:06,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:06,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:05:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:06,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:06,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:06,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:05:06,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:06,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:05:06,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:06,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:06,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:06,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:06,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:06,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:06,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 10:05:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:06,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:06,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:06,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 10:05:06,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:06,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 10:05:06,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:06,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:06,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:05:06,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:05:06,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 10:05:06,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:06,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 10:05:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:06,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:06,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:06,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:05:06,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:06,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 10:05:06,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:06,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:06,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:05:06,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:06,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 10:05:06,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:06,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 10:05:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:06,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:06,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:06,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:05:06,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:06,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 10:05:06,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:06,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:06,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:05:06,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:06,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:05:06,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:06,971 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-25 10:05:06,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [990385085] [2020-09-25 10:05:06,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:05:06,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 10:05:06,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929260475] [2020-09-25 10:05:06,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 10:05:06,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:05:06,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 10:05:06,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-25 10:05:06,973 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand 12 states.