/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:31:21,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:31:21,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:31:21,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:31:21,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:31:21,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:31:21,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:31:21,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:31:21,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:31:21,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:31:21,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:31:21,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:31:21,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:31:21,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:31:21,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:31:21,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:31:21,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:31:21,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:31:21,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:31:21,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:31:21,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:31:21,578 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:31:21,579 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:31:21,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:31:21,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:31:21,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:31:21,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:31:21,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:31:21,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:31:21,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:31:21,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:31:21,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:31:21,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:31:21,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:31:21,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:31:21,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:31:21,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:31:21,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:31:21,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:31:21,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:31:21,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:31:21,607 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 05:31:21,654 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:31:21,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:31:21,658 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:31:21,658 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:31:21,659 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:31:21,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:31:21,659 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:31:21,660 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:31:21,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:31:21,660 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:31:21,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:31:21,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:31:21,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:31:21,662 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:31:21,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:31:21,662 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:31:21,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:31:21,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:31:21,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:31:21,663 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:31:21,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:31:21,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:31:21,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:31:21,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:31:21,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:31:21,665 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:31:21,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:31:21,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:31:21,665 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:31:21,665 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:31:22,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:31:22,146 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:31:22,150 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:31:22,152 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:31:22,153 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:31:22,154 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i [2020-09-25 05:31:22,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6492c4504/7ad9d944af3647a0bd0f670fb1488061/FLAG7fa75962c [2020-09-25 05:31:22,844 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:31:22,847 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i [2020-09-25 05:31:22,864 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6492c4504/7ad9d944af3647a0bd0f670fb1488061/FLAG7fa75962c [2020-09-25 05:31:23,138 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6492c4504/7ad9d944af3647a0bd0f670fb1488061 [2020-09-25 05:31:23,151 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:31:23,156 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:31:23,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:31:23,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:31:23,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:31:23,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:31:23" (1/1) ... [2020-09-25 05:31:23,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18cc86df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:23, skipping insertion in model container [2020-09-25 05:31:23,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:31:23" (1/1) ... [2020-09-25 05:31:23,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:31:23,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:31:23,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:31:23,629 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:31:23,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:31:23,869 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:31:23,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:23 WrapperNode [2020-09-25 05:31:23,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:31:23,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:31:23,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:31:23,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:31:23,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:23" (1/1) ... [2020-09-25 05:31:23,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:23" (1/1) ... [2020-09-25 05:31:23,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:23" (1/1) ... [2020-09-25 05:31:23,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:23" (1/1) ... [2020-09-25 05:31:23,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:23" (1/1) ... [2020-09-25 05:31:23,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:23" (1/1) ... [2020-09-25 05:31:23,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:23" (1/1) ... [2020-09-25 05:31:23,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:31:23,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:31:23,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:31:23,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:31:23,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:31:24,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:31:24,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:31:24,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-25 05:31:24,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-09-25 05:31:24,015 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-09-25 05:31:24,016 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-09-25 05:31:24,016 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-09-25 05:31:24,016 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:31:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:31:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-25 05:31:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-09-25 05:31:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-09-25 05:31:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-09-25 05:31:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-09-25 05:31:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-09-25 05:31:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-09-25 05:31:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-09-25 05:31:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-09-25 05:31:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-09-25 05:31:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-09-25 05:31:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-09-25 05:31:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-09-25 05:31:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-09-25 05:31:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-09-25 05:31:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-09-25 05:31:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-09-25 05:31:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-09-25 05:31:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-09-25 05:31:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-09-25 05:31:24,021 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-09-25 05:31:24,021 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-09-25 05:31:24,021 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-09-25 05:31:24,021 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-09-25 05:31:24,021 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-09-25 05:31:24,021 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-09-25 05:31:24,021 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-09-25 05:31:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-09-25 05:31:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-09-25 05:31:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-25 05:31:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-09-25 05:31:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-09-25 05:31:24,023 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-09-25 05:31:24,023 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-09-25 05:31:24,023 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-09-25 05:31:24,023 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-09-25 05:31:24,023 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-09-25 05:31:24,023 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-09-25 05:31:24,023 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-09-25 05:31:24,024 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:31:24,024 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-09-25 05:31:24,024 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-09-25 05:31:24,024 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-09-25 05:31:24,024 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-09-25 05:31:24,024 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-25 05:31:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-09-25 05:31:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-09-25 05:31:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-09-25 05:31:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-09-25 05:31:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-09-25 05:31:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-09-25 05:31:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-09-25 05:31:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-09-25 05:31:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-09-25 05:31:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-09-25 05:31:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-25 05:31:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-09-25 05:31:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-09-25 05:31:24,027 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-09-25 05:31:24,027 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-09-25 05:31:24,027 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-09-25 05:31:24,027 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-09-25 05:31:24,027 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-09-25 05:31:24,027 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-09-25 05:31:24,028 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-09-25 05:31:24,028 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-09-25 05:31:24,028 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-09-25 05:31:24,028 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-09-25 05:31:24,028 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-09-25 05:31:24,028 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-09-25 05:31:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-09-25 05:31:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-09-25 05:31:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-09-25 05:31:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-09-25 05:31:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-09-25 05:31:24,030 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-09-25 05:31:24,030 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-09-25 05:31:24,030 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-09-25 05:31:24,030 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-09-25 05:31:24,030 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-09-25 05:31:24,030 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-09-25 05:31:24,030 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-09-25 05:31:24,031 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-09-25 05:31:24,031 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-09-25 05:31:24,031 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-09-25 05:31:24,031 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-09-25 05:31:24,031 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-09-25 05:31:24,031 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-09-25 05:31:24,032 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-09-25 05:31:24,032 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-09-25 05:31:24,032 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-09-25 05:31:24,032 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-09-25 05:31:24,032 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-09-25 05:31:24,032 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-09-25 05:31:24,032 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-09-25 05:31:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-09-25 05:31:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-09-25 05:31:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-09-25 05:31:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-09-25 05:31:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-09-25 05:31:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-09-25 05:31:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-09-25 05:31:24,034 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:31:24,034 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 05:31:24,034 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 05:31:24,034 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:31:24,034 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 05:31:24,034 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-09-25 05:31:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 05:31:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-09-25 05:31:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-09-25 05:31:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-09-25 05:31:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-09-25 05:31:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-09-25 05:31:24,036 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-09-25 05:31:24,036 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-09-25 05:31:24,036 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-09-25 05:31:24,036 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-09-25 05:31:24,036 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-09-25 05:31:24,036 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-09-25 05:31:24,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:31:24,037 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-09-25 05:31:24,037 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-09-25 05:31:24,037 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-09-25 05:31:24,037 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-09-25 05:31:24,037 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:31:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:31:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:31:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 05:31:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:31:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:31:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:31:24,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:31:24,643 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:31:24,643 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 05:31:24,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:31:24 BoogieIcfgContainer [2020-09-25 05:31:24,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:31:24,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:31:24,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:31:24,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:31:24,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:31:23" (1/3) ... [2020-09-25 05:31:24,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e79de21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:31:24, skipping insertion in model container [2020-09-25 05:31:24,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:23" (2/3) ... [2020-09-25 05:31:24,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e79de21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:31:24, skipping insertion in model container [2020-09-25 05:31:24,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:31:24" (3/3) ... [2020-09-25 05:31:24,659 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.c_1.i [2020-09-25 05:31:24,671 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:31:24,682 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:31:24,705 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:31:24,732 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:31:24,732 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:31:24,732 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:31:24,732 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:31:24,733 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:31:24,733 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:31:24,733 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:31:24,733 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:31:24,759 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2020-09-25 05:31:24,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-25 05:31:24,767 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:31:24,769 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 05:31:24,769 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:31:24,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:31:24,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1490968618, now seen corresponding path program 1 times [2020-09-25 05:31:24,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:31:24,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260465240] [2020-09-25 05:31:24,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:31:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:24,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:25,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:25,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 05:31:25,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:25,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-09-25 05:31:25,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:25,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:25,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:31:25,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 05:31:25,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:31:25,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:31:25,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:31:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:25,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:25,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:25,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 05:31:25,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:25,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 05:31:25,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:25,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:25,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:25,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:25,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:25,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:25,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:31:25,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260465240] [2020-09-25 05:31:25,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:31:25,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 05:31:25,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891607] [2020-09-25 05:31:25,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:31:25,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:31:25,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:31:25,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:31:25,666 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 7 states. [2020-09-25 05:31:26,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:31:26,238 INFO L93 Difference]: Finished difference Result 128 states and 157 transitions. [2020-09-25 05:31:26,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 05:31:26,241 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-09-25 05:31:26,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:31:26,257 INFO L225 Difference]: With dead ends: 128 [2020-09-25 05:31:26,257 INFO L226 Difference]: Without dead ends: 67 [2020-09-25 05:31:26,263 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 05:31:26,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-25 05:31:26,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2020-09-25 05:31:26,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 05:31:26,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2020-09-25 05:31:26,331 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 21 [2020-09-25 05:31:26,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:31:26,332 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2020-09-25 05:31:26,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:31:26,332 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2020-09-25 05:31:26,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 05:31:26,336 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:31:26,336 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 05:31:26,337 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:31:26,337 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:31:26,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:31:26,338 INFO L82 PathProgramCache]: Analyzing trace with hash -114203518, now seen corresponding path program 1 times [2020-09-25 05:31:26,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:31:26,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1668421489] [2020-09-25 05:31:26,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:31:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:26,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:26,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:27,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:30,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:30,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 05:31:30,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:31:30,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4335 [2020-09-25 05:31:30,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:30,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:30,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:31:30,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 05:31:30,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 05:31:30,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:31:30,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:31:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:30,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:30,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:30,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 05:31:30,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:30,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:31:30,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:30,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:30,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:30,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:30,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:30,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 05:31:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:30,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:30,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:30,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 05:31:30,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:30,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 05:31:30,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:30,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:30,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:31:30,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:30,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 05:31:30,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:30,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:31:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:30,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:31,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:31,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:31:31,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:31,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 05:31:31,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:31,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:31,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:31:31,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:31,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 05:31:31,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:31,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 05:31:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:31,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:31,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:31,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 05:31:31,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:31,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 05:31:31,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:31,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:31,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:31:31,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:31,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 05:31:31,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:31,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:31:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:31,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:31,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:31,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:31:31,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:31,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:31:31,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:31,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:31,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:31,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:31,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:31,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:31,152 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 05:31:31,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1668421489] [2020-09-25 05:31:31,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:31:31,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 05:31:31,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951437208] [2020-09-25 05:31:31,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:31:31,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:31:31,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:31:31,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:31:31,158 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand 9 states. [2020-09-25 05:31:31,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:31:31,520 INFO L93 Difference]: Finished difference Result 102 states and 117 transitions. [2020-09-25 05:31:31,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:31:31,521 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2020-09-25 05:31:31,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:31:31,523 INFO L225 Difference]: With dead ends: 102 [2020-09-25 05:31:31,524 INFO L226 Difference]: Without dead ends: 73 [2020-09-25 05:31:31,525 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:31:31,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-25 05:31:31,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 69. [2020-09-25 05:31:31,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-25 05:31:31,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2020-09-25 05:31:31,541 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 61 [2020-09-25 05:31:31,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:31:31,541 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2020-09-25 05:31:31,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:31:31,541 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2020-09-25 05:31:31,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 05:31:31,543 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:31:31,544 INFO L422 BasicCegarLoop]: trace histogram [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 05:31:31,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:31:31,544 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:31:31,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:31:31,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1260495361, now seen corresponding path program 1 times [2020-09-25 05:31:31,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:31:31,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [30870427] [2020-09-25 05:31:31,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:31:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:31,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:31,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:32,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:32,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 05:31:32,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:31:32,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1037 [2020-09-25 05:31:32,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:32,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:32,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:31:32,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 05:31:32,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 05:31:32,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:32,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:31:32,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:32,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:32,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:32,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 05:31:32,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:32,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 05:31:32,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:32,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:32,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:32,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:32,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:32,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:32,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 05:31:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:32,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:32,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:32,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 05:31:32,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:32,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 05:31:32,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:32,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:32,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:32,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:32,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:32,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:32,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:31:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:32,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:32,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:32,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:31:32,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:32,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:31:32,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:32,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:32,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:32,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:32,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:32,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:32,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 05:31:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:32,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:32,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:32,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 05:31:32,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:32,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 05:31:32,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:32,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:32,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:31:32,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:32,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 05:31:32,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:32,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:31:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:32,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:32,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:32,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:31:32,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:32,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 05:31:32,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:32,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:32,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:31:32,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:32,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 05:31:32,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:32,965 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 05:31:32,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [30870427] [2020-09-25 05:31:32,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:31:32,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 05:31:32,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105776132] [2020-09-25 05:31:32,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:31:32,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:31:32,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:31:32,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:31:32,967 INFO L87 Difference]: Start difference. First operand 69 states and 75 transitions. Second operand 9 states. [2020-09-25 05:31:33,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:31:33,292 INFO L93 Difference]: Finished difference Result 99 states and 111 transitions. [2020-09-25 05:31:33,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:31:33,292 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2020-09-25 05:31:33,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:31:33,294 INFO L225 Difference]: With dead ends: 99 [2020-09-25 05:31:33,294 INFO L226 Difference]: Without dead ends: 65 [2020-09-25 05:31:33,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:31:33,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-25 05:31:33,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 61. [2020-09-25 05:31:33,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-25 05:31:33,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2020-09-25 05:31:33,305 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 61 [2020-09-25 05:31:33,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:31:33,306 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2020-09-25 05:31:33,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:31:33,306 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2020-09-25 05:31:33,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 05:31:33,308 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:31:33,308 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 05:31:33,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:31:33,308 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:31:33,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:31:33,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1723385860, now seen corresponding path program 1 times [2020-09-25 05:31:33,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:31:33,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038256391] [2020-09-25 05:31:33,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:31:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:33,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:33,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:34,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:34,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 05:31:34,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:31:34,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1249 [2020-09-25 05:31:34,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:34,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:34,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:31:34,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 05:31:34,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 05:31:34,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:34,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:31:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:34,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:34,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:34,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 05:31:34,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:34,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 05:31:34,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:34,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:34,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:31:34,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:34,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:31:34,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:34,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 05:31:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:34,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:34,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:34,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 05:31:34,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:34,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 05:31:34,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:34,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:34,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:31:34,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:34,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 05:31:34,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:34,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:31:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:34,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:34,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:34,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:31:34,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:34,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:31:34,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:34,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:34,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:34,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:34,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:34,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:34,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 05:31:34,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:34,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:34,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:34,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 05:31:34,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:34,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 05:31:34,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:34,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:34,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:31:34,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:34,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 05:31:34,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:34,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:31:34,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:34,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:34,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:34,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:31:34,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:34,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:31:34,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:34,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:34,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:34,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:34,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:34,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:31:34,973 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 05:31:34,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038256391] [2020-09-25 05:31:34,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:31:34,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 05:31:34,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473699835] [2020-09-25 05:31:34,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 05:31:34,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:31:34,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 05:31:34,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:31:34,976 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand 8 states. [2020-09-25 05:31:35,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:31:35,662 INFO L93 Difference]: Finished difference Result 102 states and 116 transitions. [2020-09-25 05:31:35,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 05:31:35,662 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-09-25 05:31:35,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:31:35,665 INFO L225 Difference]: With dead ends: 102 [2020-09-25 05:31:35,665 INFO L226 Difference]: Without dead ends: 99 [2020-09-25 05:31:35,666 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 05:31:35,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-09-25 05:31:35,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 91. [2020-09-25 05:31:35,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-09-25 05:31:35,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 106 transitions. [2020-09-25 05:31:35,682 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 106 transitions. Word has length 61 [2020-09-25 05:31:35,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:31:35,682 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 106 transitions. [2020-09-25 05:31:35,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 05:31:35,682 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 106 transitions. [2020-09-25 05:31:35,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 05:31:35,684 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:31:35,684 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 05:31:35,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:31:35,684 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:31:35,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:31:35,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1814582916, now seen corresponding path program 1 times [2020-09-25 05:31:35,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:31:35,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [7101604] [2020-09-25 05:31:35,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:31:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:35,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:35,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:37,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:37,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 05:31:37,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:31:37,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1306 [2020-09-25 05:31:37,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:37,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:37,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 05:31:37,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 05:31:37,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 05:31:37,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:37,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:31:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:37,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:37,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:37,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 05:31:37,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:37,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 05:31:37,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:37,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:37,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:31:37,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:37,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:31:37,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:37,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 05:31:37,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:37,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:37,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:37,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 05:31:37,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:37,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 05:31:37,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:37,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:37,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:31:37,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:37,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 05:31:37,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:37,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:31:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:37,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:37,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:37,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:31:37,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:37,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:31:37,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:37,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:37,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:37,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:37,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:37,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:37,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 05:31:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:37,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:37,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:37,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 05:31:37,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:37,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 05:31:37,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:37,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:37,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:31:37,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:37,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 05:31:37,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:37,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:31:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:37,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:37,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:37,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:31:37,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:37,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:31:37,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:37,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:37,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:37,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:37,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:37,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:37,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 05:31:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:37,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:37,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:37,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 05:31:37,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:37,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 05:31:37,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:37,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:37,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:31:37,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:31:37,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 05:31:37,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:37,351 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 05:31:37,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [7101604] [2020-09-25 05:31:37,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:31:37,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 05:31:37,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924370740] [2020-09-25 05:31:37,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:31:37,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:31:37,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:31:37,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:31:37,354 INFO L87 Difference]: Start difference. First operand 91 states and 106 transitions. Second operand 9 states. [2020-09-25 05:31:38,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:31:38,046 INFO L93 Difference]: Finished difference Result 110 states and 124 transitions. [2020-09-25 05:31:38,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 05:31:38,047 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-09-25 05:31:38,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:31:38,049 INFO L225 Difference]: With dead ends: 110 [2020-09-25 05:31:38,050 INFO L226 Difference]: Without dead ends: 106 [2020-09-25 05:31:38,051 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 05:31:38,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-09-25 05:31:38,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 99. [2020-09-25 05:31:38,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-25 05:31:38,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 113 transitions. [2020-09-25 05:31:38,068 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 113 transitions. Word has length 70 [2020-09-25 05:31:38,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:31:38,069 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 113 transitions. [2020-09-25 05:31:38,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:31:38,069 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 113 transitions. [2020-09-25 05:31:38,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 05:31:38,070 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:31:38,071 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 05:31:38,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:31:38,071 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:31:38,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:31:38,072 INFO L82 PathProgramCache]: Analyzing trace with hash 983151375, now seen corresponding path program 1 times [2020-09-25 05:31:38,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:31:38,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [439720420] [2020-09-25 05:31:38,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:31:38,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:38,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:39,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:39,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 05:31:39,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:39,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1046 [2020-09-25 05:31:39,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:39,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:39,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 05:31:39,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 05:31:39,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 05:31:39,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:31:39,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:31:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:39,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:39,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:39,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 05:31:39,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:39,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 05:31:39,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:39,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:39,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:39,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:39,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:39,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:31:39,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 05:31:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:39,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:39,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:39,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 05:31:39,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:39,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 05:31:39,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:39,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:31:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 05:31:39,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:39,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:31:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:39,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:39,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:39,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:31:39,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:39,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 05:31:39,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:39,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:39,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:31:39,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:39,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 05:31:39,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:39,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 05:31:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:39,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:39,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:39,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 05:31:39,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:39,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 05:31:39,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:39,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:39,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 05:31:39,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:31:39,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 05:31:39,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:39,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:31:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:39,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:39,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:39,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:31:39,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:39,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 05:31:39,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:39,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:39,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:31:39,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:31:39,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 05:31:39,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:39,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 05:31:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:39,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:39,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:39,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:31:39,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:39,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 05:31:39,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:39,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:39,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:31:39,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:39,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 05:31:39,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:31:39,969 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 05:31:39,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [439720420] [2020-09-25 05:31:39,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:31:39,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 05:31:39,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039977975] [2020-09-25 05:31:39,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 05:31:39,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:31:39,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 05:31:39,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-09-25 05:31:39,973 INFO L87 Difference]: Start difference. First operand 99 states and 113 transitions. Second operand 23 states. [2020-09-25 05:31:41,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:31:41,696 INFO L93 Difference]: Finished difference Result 118 states and 137 transitions. [2020-09-25 05:31:41,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 05:31:41,696 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 71 [2020-09-25 05:31:41,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:31:41,699 INFO L225 Difference]: With dead ends: 118 [2020-09-25 05:31:41,699 INFO L226 Difference]: Without dead ends: 101 [2020-09-25 05:31:41,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 9 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 05:31:41,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-25 05:31:41,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 89. [2020-09-25 05:31:41,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-09-25 05:31:41,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2020-09-25 05:31:41,714 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 71 [2020-09-25 05:31:41,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:31:41,714 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2020-09-25 05:31:41,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 05:31:41,715 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2020-09-25 05:31:41,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 05:31:41,716 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:31:41,716 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 05:31:41,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 05:31:41,717 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:31:41,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:31:41,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1660138148, now seen corresponding path program 1 times [2020-09-25 05:31:41,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:31:41,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580822834] [2020-09-25 05:31:41,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:31:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:41,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:42,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:44,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:44,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 05:31:44,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:31:44,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2776 [2020-09-25 05:31:44,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:44,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:44,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:31:44,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-09-25 05:31:44,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 05:31:44,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:44,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:31:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:44,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:44,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:44,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 05:31:44,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:44,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 05:31:44,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:44,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:44,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:44,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:44,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:44,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:44,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 05:31:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:44,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:44,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:44,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 05:31:44,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:44,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:31:44,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:44,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:44,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:44,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:44,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:44,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:44,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:31:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:44,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:44,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:44,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:31:44,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:44,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:31:44,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:44,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:44,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:44,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:44,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:44,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:44,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 05:31:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:44,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:44,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:44,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 05:31:44,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:44,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:31:44,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:44,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:44,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:44,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:44,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:44,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:44,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:31:44,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:44,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:44,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:44,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:31:44,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:44,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:31:44,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:44,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:44,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:44,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:44,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:44,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:44,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 05:31:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:44,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:44,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:44,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 05:31:44,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:44,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:31:44,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:44,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:44,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:44,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:44,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:44,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:44,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 05:31:44,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:44,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:44,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:44,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:31:44,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:44,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:31:44,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:44,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:44,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:44,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:44,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:44,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:44,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 05:31:44,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:44,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:44,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:44,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:31:44,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:44,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 05:31:44,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:44,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:44,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:31:44,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:44,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:31:44,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:44,811 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 05:31:44,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580822834] [2020-09-25 05:31:44,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:31:44,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 05:31:44,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176448708] [2020-09-25 05:31:44,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:31:44,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:31:44,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:31:44,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:31:44,814 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand 10 states. [2020-09-25 05:31:45,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:31:45,398 INFO L93 Difference]: Finished difference Result 104 states and 114 transitions. [2020-09-25 05:31:45,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 05:31:45,398 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-09-25 05:31:45,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:31:45,401 INFO L225 Difference]: With dead ends: 104 [2020-09-25 05:31:45,401 INFO L226 Difference]: Without dead ends: 98 [2020-09-25 05:31:45,406 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2020-09-25 05:31:45,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-25 05:31:45,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2020-09-25 05:31:45,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-09-25 05:31:45,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2020-09-25 05:31:45,439 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 85 [2020-09-25 05:31:45,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:31:45,440 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2020-09-25 05:31:45,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 05:31:45,443 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2020-09-25 05:31:45,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 05:31:45,445 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:31:45,445 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 05:31:45,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 05:31:45,445 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:31:45,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:31:45,449 INFO L82 PathProgramCache]: Analyzing trace with hash 2046230471, now seen corresponding path program 1 times [2020-09-25 05:31:45,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:31:45,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1653594065] [2020-09-25 05:31:45,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:31:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:45,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:45,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:45,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:49,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:50,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:50,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:50,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 05:31:50,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:31:50,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 05:31:50,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:50,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:50,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:31:50,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-09-25 05:31:50,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:31:50,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:50,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:31:50,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:50,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:50,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:50,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 05:31:50,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:50,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 05:31:50,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:50,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:50,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:50,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:50,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:50,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:50,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 05:31:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:50,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:50,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:50,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 05:31:50,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:50,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:31:50,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:50,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:50,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:50,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:50,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:50,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:50,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:31:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:50,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:50,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:50,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:31:50,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:50,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:31:50,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:50,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:50,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:50,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:50,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:50,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:50,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 05:31:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:50,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:50,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:50,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 05:31:50,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:50,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 05:31:50,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:50,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:50,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:50,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:50,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:50,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:50,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:31:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:50,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:50,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:50,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:31:50,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:50,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:31:50,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:50,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:50,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:50,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:50,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:50,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:50,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 05:31:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:50,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:50,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:50,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 05:31:50,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:50,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 05:31:50,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:50,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:50,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:31:50,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:50,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 05:31:50,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:50,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 05:31:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:50,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:50,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:50,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:31:50,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:50,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 05:31:50,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:50,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:50,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:31:50,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:50,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 05:31:50,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:50,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 05:31:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:50,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:50,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:50,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:31:50,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:50,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 05:31:50,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:50,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:50,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:31:50,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:50,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:31:50,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:31:50,985 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 05:31:50,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1653594065] [2020-09-25 05:31:50,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:31:50,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 05:31:50,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577505951] [2020-09-25 05:31:50,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:31:50,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:31:50,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:31:50,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:31:50,988 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand 10 states. [2020-09-25 05:31:51,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:31:51,847 INFO L93 Difference]: Finished difference Result 124 states and 132 transitions. [2020-09-25 05:31:51,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 05:31:51,847 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-09-25 05:31:51,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:31:51,849 INFO L225 Difference]: With dead ends: 124 [2020-09-25 05:31:51,849 INFO L226 Difference]: Without dead ends: 111 [2020-09-25 05:31:51,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2020-09-25 05:31:51,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-09-25 05:31:51,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 100. [2020-09-25 05:31:51,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-09-25 05:31:51,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 107 transitions. [2020-09-25 05:31:51,870 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 107 transitions. Word has length 86 [2020-09-25 05:31:51,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:31:51,871 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 107 transitions. [2020-09-25 05:31:51,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 05:31:51,871 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 107 transitions. [2020-09-25 05:31:51,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-25 05:31:51,874 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:31:51,874 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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 05:31:51,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 05:31:51,875 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:31:51,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:31:51,875 INFO L82 PathProgramCache]: Analyzing trace with hash -416868516, now seen corresponding path program 1 times [2020-09-25 05:31:51,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:31:51,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1482107573] [2020-09-25 05:31:51,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:31:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 05:31:51,905 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 05:31:51,905 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 05:31:51,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 05:31:51,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:31:51 BoogieIcfgContainer [2020-09-25 05:31:51,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 05:31:51,941 INFO L168 Benchmark]: Toolchain (without parser) took 28787.35 ms. Allocated memory was 146.3 MB in the beginning and 440.9 MB in the end (delta: 294.6 MB). Free memory was 101.4 MB in the beginning and 232.3 MB in the end (delta: -130.8 MB). Peak memory consumption was 163.8 MB. Max. memory is 7.1 GB. [2020-09-25 05:31:51,942 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 05:31:51,943 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.85 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 100.8 MB in the beginning and 169.1 MB in the end (delta: -68.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-09-25 05:31:51,944 INFO L168 Benchmark]: Boogie Preprocessor took 64.81 ms. Allocated memory is still 203.4 MB. Free memory was 169.1 MB in the beginning and 166.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 05:31:51,945 INFO L168 Benchmark]: RCFGBuilder took 713.47 ms. Allocated memory is still 203.4 MB. Free memory was 166.4 MB in the beginning and 118.8 MB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. [2020-09-25 05:31:51,946 INFO L168 Benchmark]: TraceAbstraction took 27287.33 ms. Allocated memory was 203.4 MB in the beginning and 440.9 MB in the end (delta: 237.5 MB). Free memory was 118.8 MB in the beginning and 232.3 MB in the end (delta: -113.5 MB). Peak memory consumption was 124.0 MB. Max. memory is 7.1 GB. [2020-09-25 05:31:51,950 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 712.85 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 100.8 MB in the beginning and 169.1 MB in the end (delta: -68.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 64.81 ms. Allocated memory is still 203.4 MB. Free memory was 169.1 MB in the beginning and 166.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 713.47 ms. Allocated memory is still 203.4 MB. Free memory was 166.4 MB in the beginning and 118.8 MB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27287.33 ms. Allocated memory was 203.4 MB in the beginning and 440.9 MB in the end (delta: 237.5 MB). Free memory was 118.8 MB in the beginning and 232.3 MB in the end (delta: -113.5 MB). Peak memory consumption was 124.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L867] void * guard_malloc_counter = 0; [L887] struct list_head *elem = ((void *)0); [L900] static struct list_head head; [L903] struct list_head *dev1, *dev2; [L904] CALL, EXPR my_malloc(sizeof(*dev1)) [L879] CALL, EXPR __getMemory(size) [L871] (size > 0) ? (0) : __blast_assert () [L872] guard_malloc_counter++ [L873] COND FALSE !(!__VERIFIER_nondet_int()) [L875] return (void *) guard_malloc_counter; [L879] RET, EXPR __getMemory(size) [L879] return __getMemory(size); [L904] RET, EXPR my_malloc(sizeof(*dev1)) [L904] dev1 = my_malloc(sizeof(*dev1)) [L905] CALL, EXPR my_malloc(sizeof(*dev2)) [L879] CALL, EXPR __getMemory(size) [L871] (size > 0) ? (0) : __blast_assert () [L872] guard_malloc_counter++ [L873] COND FALSE !(!__VERIFIER_nondet_int()) [L875] return (void *) guard_malloc_counter; [L879] RET, EXPR __getMemory(size) [L879] return __getMemory(size); [L905] RET, EXPR my_malloc(sizeof(*dev2)) [L905] dev2 = my_malloc(sizeof(*dev2)) [L906] COND TRUE dev1!=((void *)0) && dev2!=((void *)0) [L907] CALL list_add(dev2, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L891] COND FALSE !(__VERIFIER_nondet_int()) [L907] RET list_add(dev2, &head) [L908] CALL list_add(dev1, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L891] COND TRUE __VERIFIER_nondet_int() [L892] elem = new [L908] RET list_add(dev1, &head) [L909] CALL list_del(dev2) [L896] COND FALSE !(entry==elem) [L909] RET list_del(dev2) [L910] CALL list_add(dev2, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L891] COND FALSE !(__VERIFIER_nondet_int()) [L910] RET list_add(dev2, &head) [L913] CALL list_add(dev1, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L890] CALL __blast_assert () [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.1s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 494 SDtfs, 706 SDslu, 1330 SDs, 0 SdLazy, 2901 SolverSat, 275 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 221 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 51 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 20.4s InterpolantComputationTime, 610 NumberOfCodeBlocks, 610 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 508 ConstructedInterpolants, 0 QuantifiedInterpolants, 126413 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 127/149 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...