/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:39:27,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:39:27,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:39:27,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:39:27,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:39:27,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:39:27,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:39:27,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:39:27,367 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:39:27,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:39:27,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:39:27,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:39:27,371 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:39:27,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:39:27,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:39:27,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:39:27,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:39:27,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:39:27,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:39:27,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:39:27,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:39:27,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:39:27,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:39:27,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:39:27,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:39:27,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:39:27,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:39:27,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:39:27,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:39:27,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:39:27,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:39:27,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:39:27,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:39:27,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:39:27,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:39:27,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:39:27,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:39:27,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:39:27,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:39:27,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:39:27,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:39:27,425 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 06:39:27,479 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:39:27,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:39:27,482 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:39:27,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:39:27,482 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:39:27,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:39:27,483 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:39:27,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:39:27,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:39:27,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:39:27,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:39:27,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:39:27,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:39:27,485 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:39:27,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:39:27,485 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:39:27,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:39:27,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:39:27,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:39:27,486 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:39:27,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:39:27,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:39:27,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:39:27,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:39:27,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:39:27,487 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:39:27,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:39:27,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:39:27,488 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:39:27,489 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:39:27,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:39:28,018 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:39:28,023 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:39:28,025 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:39:28,026 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:39:28,028 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-09-25 06:39:28,126 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98ec0d615/0e71d19bedfa4393a92dd984f272ffc4/FLAG5c8c340a4 [2020-09-25 06:39:28,745 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:39:28,746 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-09-25 06:39:28,765 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98ec0d615/0e71d19bedfa4393a92dd984f272ffc4/FLAG5c8c340a4 [2020-09-25 06:39:29,027 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98ec0d615/0e71d19bedfa4393a92dd984f272ffc4 [2020-09-25 06:39:29,042 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:39:29,049 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:39:29,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:39:29,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:39:29,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:39:29,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:39:29" (1/1) ... [2020-09-25 06:39:29,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b337bef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:29, skipping insertion in model container [2020-09-25 06:39:29,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:39:29" (1/1) ... [2020-09-25 06:39:29,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:39:29,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:39:29,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:39:29,648 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:39:29,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:39:29,822 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:39:29,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:29 WrapperNode [2020-09-25 06:39:29,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:39:29,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:39:29,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:39:29,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:39:29,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:29" (1/1) ... [2020-09-25 06:39:29,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:29" (1/1) ... [2020-09-25 06:39:29,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:29" (1/1) ... [2020-09-25 06:39:29,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:29" (1/1) ... [2020-09-25 06:39:29,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:29" (1/1) ... [2020-09-25 06:39:29,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:29" (1/1) ... [2020-09-25 06:39:29,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:29" (1/1) ... [2020-09-25 06:39:29,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:39:29,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:39:29,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:39:29,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:39:29,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:39:30,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:39:30,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:39:30,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 06:39:30,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 06:39:30,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 06:39:30,010 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-09-25 06:39:30,010 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-09-25 06:39:30,010 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-09-25 06:39:30,010 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-09-25 06:39:30,010 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-09-25 06:39:30,011 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-09-25 06:39:30,011 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-09-25 06:39:30,011 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-09-25 06:39:30,011 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-09-25 06:39:30,011 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-09-25 06:39:30,012 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-09-25 06:39:30,012 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-09-25 06:39:30,012 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-09-25 06:39:30,012 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-09-25 06:39:30,013 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-09-25 06:39:30,013 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-09-25 06:39:30,013 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:39:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:39:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 06:39:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 06:39:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 06:39:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 06:39:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 06:39:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 06:39:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 06:39:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 06:39:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 06:39:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 06:39:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 06:39:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 06:39:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 06:39:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 06:39:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 06:39:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 06:39:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 06:39:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 06:39:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 06:39:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 06:39:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 06:39:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 06:39:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 06:39:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 06:39:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 06:39:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 06:39:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 06:39:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 06:39:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 06:39:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 06:39:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 06:39:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 06:39:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 06:39:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 06:39:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 06:39:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 06:39:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 06:39:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 06:39:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 06:39:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 06:39:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 06:39:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 06:39:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 06:39:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 06:39:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 06:39:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 06:39:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 06:39:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 06:39:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 06:39:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 06:39:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 06:39:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 06:39:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:39:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 06:39:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 06:39:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:39:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 06:39:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 06:39:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 06:39:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 06:39:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 06:39:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 06:39:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 06:39:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 06:39:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 06:39:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 06:39:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 06:39:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 06:39:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 06:39:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 06:39:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 06:39:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 06:39:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 06:39:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 06:39:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 06:39:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 06:39:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 06:39:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 06:39:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 06:39:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 06:39:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 06:39:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 06:39:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 06:39:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 06:39:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 06:39:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 06:39:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 06:39:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 06:39:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 06:39:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 06:39:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 06:39:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 06:39:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 06:39:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 06:39:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 06:39:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 06:39:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 06:39:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 06:39:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 06:39:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 06:39:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 06:39:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 06:39:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 06:39:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 06:39:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 06:39:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:39:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-09-25 06:39:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-09-25 06:39:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:39:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:39:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-09-25 06:39:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-09-25 06:39:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:39:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-09-25 06:39:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:39:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 06:39:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 06:39:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:39:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-09-25 06:39:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-09-25 06:39:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-09-25 06:39:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-09-25 06:39:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-09-25 06:39:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-09-25 06:39:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-09-25 06:39:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-09-25 06:39:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-09-25 06:39:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-09-25 06:39:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-09-25 06:39:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:39:30,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:39:30,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:39:30,964 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:39:30,964 INFO L295 CfgBuilder]: Removed 38 assume(true) statements. [2020-09-25 06:39:30,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:39:30 BoogieIcfgContainer [2020-09-25 06:39:30,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:39:30,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:39:30,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:39:30,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:39:30,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:39:29" (1/3) ... [2020-09-25 06:39:30,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b67671a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:39:30, skipping insertion in model container [2020-09-25 06:39:30,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:29" (2/3) ... [2020-09-25 06:39:30,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b67671a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:39:30, skipping insertion in model container [2020-09-25 06:39:30,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:39:30" (3/3) ... [2020-09-25 06:39:30,980 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2020-09-25 06:39:30,992 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:39:31,004 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:39:31,030 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:39:31,076 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:39:31,076 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:39:31,076 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:39:31,077 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:39:31,077 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:39:31,077 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:39:31,077 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:39:31,077 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:39:31,117 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states. [2020-09-25 06:39:31,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 06:39:31,133 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:31,135 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2020-09-25 06:39:31,136 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:31,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:31,144 INFO L82 PathProgramCache]: Analyzing trace with hash 575468621, now seen corresponding path program 1 times [2020-09-25 06:39:31,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:31,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1548522001] [2020-09-25 06:39:31,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:31,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:31,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:31,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:32,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:36,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:36,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-25 06:39:36,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:39:36,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 06:39:36,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:36,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:36,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:36,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-25 06:39:36,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:36,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:39:36,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:36,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:36,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:36,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:39:36,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:36,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:39:36,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:36,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:36,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:36,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:36,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:36,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:36,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 06:39:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:36,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:36,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:36,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:36,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:37,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:41,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:41,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 06:39:41,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:39:41,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 06:39:41,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:41,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:41,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:41,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 06:39:41,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:41,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:41,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:41,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:41,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:42,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:45,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:45,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:46,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:46,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 06:39:46,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:39:46,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 06:39:46,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:46,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:46,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:46,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-25 06:39:46,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:46,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:46,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:39:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:46,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:46,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:46,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 06:39:46,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:46,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 06:39:46,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:46,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:46,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:46,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:46,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:46,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:46,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:39:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:46,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:46,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:46,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 06:39:46,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:46,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 06:39:46,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:46,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:46,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:46,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:46,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:46,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:46,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:39:46,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:46,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:46,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:46,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:39:46,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:46,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 06:39:46,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:46,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:46,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:46,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:46,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:46,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:46,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 06:39:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:46,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:46,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:46,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 06:39:46,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:46,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 06:39:46,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:46,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:46,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:46,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:46,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:46,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:46,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:39:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:46,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:46,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:46,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 06:39:46,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:46,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 06:39:46,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:46,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:46,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:46,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:46,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:46,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:46,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:39:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:46,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:46,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:46,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:39:46,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:46,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:39:46,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:46,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:46,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:46,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:46,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:46,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:46,916 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-25 06:39:46,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1548522001] [2020-09-25 06:39:46,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:46,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:39:46,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867983110] [2020-09-25 06:39:46,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:39:46,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:46,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:39:46,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:39:46,950 INFO L87 Difference]: Start difference. First operand 276 states. Second operand 4 states. [2020-09-25 06:39:47,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:47,554 INFO L93 Difference]: Finished difference Result 568 states and 767 transitions. [2020-09-25 06:39:47,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:39:47,556 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 85 [2020-09-25 06:39:47,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:47,576 INFO L225 Difference]: With dead ends: 568 [2020-09-25 06:39:47,577 INFO L226 Difference]: Without dead ends: 275 [2020-09-25 06:39:47,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:39:47,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-09-25 06:39:47,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 255. [2020-09-25 06:39:47,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-25 06:39:47,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 284 transitions. [2020-09-25 06:39:47,669 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 284 transitions. Word has length 85 [2020-09-25 06:39:47,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:47,670 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 284 transitions. [2020-09-25 06:39:47,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:39:47,670 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 284 transitions. [2020-09-25 06:39:47,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 06:39:47,675 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:47,675 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2020-09-25 06:39:47,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:39:47,676 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:47,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:47,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1893520380, now seen corresponding path program 1 times [2020-09-25 06:39:47,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:47,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1936548122] [2020-09-25 06:39:47,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:47,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:47,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:47,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:48,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:52,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:52,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 06:39:52,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:39:52,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-25 06:39:52,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:52,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:52,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:39:52,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 06:39:52,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 06:39:52,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:52,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:52,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:52,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:52,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:39:52,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:52,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:39:52,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:52,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:52,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:52,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:52,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:52,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:52,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 06:39:52,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:52,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:52,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:53,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:54,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:57,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:57,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 06:39:57,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:39:57,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 06:39:57,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:57,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:57,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:39:57,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 06:39:57,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 06:39:57,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:57,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:57,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:57,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:57,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:58,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:02,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:02,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 06:40:02,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:40:02,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 06:40:02,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:02,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:02,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:40:02,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:40:02,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 06:40:02,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:40:02,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:40:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:02,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:03,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:03,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 06:40:03,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:03,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 06:40:03,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:03,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:03,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:40:03,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:03,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 06:40:03,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:03,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:40:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:03,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:03,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:03,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 06:40:03,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:03,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 06:40:03,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:03,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:03,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:40:03,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:03,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 06:40:03,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:40:03,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:40:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:03,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:03,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:03,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:40:03,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:03,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:40:03,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:03,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:03,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:03,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:03,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:03,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:03,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 06:40:03,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:03,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:03,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:03,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 06:40:03,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:03,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 06:40:03,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:03,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:03,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:40:03,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:03,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 06:40:03,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:03,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:40:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:03,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:03,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:03,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 06:40:03,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:03,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 06:40:03,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:03,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:03,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:03,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:03,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:03,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:03,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:40:03,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:03,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:03,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:03,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:40:03,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:03,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:40:03,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:03,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:03,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:03,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:03,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:03,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:03,388 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-25 06:40:03,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1936548122] [2020-09-25 06:40:03,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:40:03,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 06:40:03,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90736222] [2020-09-25 06:40:03,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:40:03,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:40:03,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:40:03,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:40:03,393 INFO L87 Difference]: Start difference. First operand 255 states and 284 transitions. Second operand 7 states. [2020-09-25 06:40:04,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:40:04,663 INFO L93 Difference]: Finished difference Result 542 states and 621 transitions. [2020-09-25 06:40:04,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 06:40:04,664 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2020-09-25 06:40:04,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:40:04,668 INFO L225 Difference]: With dead ends: 542 [2020-09-25 06:40:04,668 INFO L226 Difference]: Without dead ends: 296 [2020-09-25 06:40:04,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-09-25 06:40:04,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-25 06:40:04,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 276. [2020-09-25 06:40:04,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-09-25 06:40:04,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 307 transitions. [2020-09-25 06:40:04,699 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 307 transitions. Word has length 87 [2020-09-25 06:40:04,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:40:04,699 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 307 transitions. [2020-09-25 06:40:04,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:40:04,700 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 307 transitions. [2020-09-25 06:40:04,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-25 06:40:04,702 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:40:04,703 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-25 06:40:04,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:40:04,703 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:40:04,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:40:04,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1671014528, now seen corresponding path program 1 times [2020-09-25 06:40:04,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:40:04,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2124094688] [2020-09-25 06:40:04,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:40:04,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:04,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:05,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:05,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:06,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:07,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:09,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:09,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 296 [2020-09-25 06:40:09,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:40:09,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5096 [2020-09-25 06:40:09,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:09,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:09,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 06:40:09,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 06:40:09,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-25 06:40:09,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:09,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:40:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:09,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:10,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:10,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:40:10,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:10,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:40:10,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:10,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:10,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:10,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:10,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:10,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:10,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 06:40:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:10,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:10,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:11,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:12,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:15,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:15,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-09-25 06:40:15,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:40:15,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5076 [2020-09-25 06:40:15,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:15,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:15,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 06:40:15,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 06:40:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-25 06:40:15,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:40:15,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:40:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:15,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:15,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:16,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:16,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking...