/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=0.8 --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-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:48:26,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:48:26,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:48:26,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:48:26,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:48:26,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:48:26,084 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:48:26,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:48:26,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:48:26,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:48:26,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:48:26,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:48:26,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:48:26,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:48:26,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:48:26,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:48:26,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:48:26,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:48:26,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:48:26,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:48:26,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:48:26,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:48:26,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:48:26,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:48:26,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:48:26,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:48:26,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:48:26,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:48:26,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:48:26,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:48:26,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:48:26,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:48:26,119 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:48:26,120 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:48:26,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:48:26,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:48:26,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:48:26,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:48:26,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:48:26,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:48:26,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:48:26,130 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 07:48:26,184 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:48:26,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:48:26,188 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:48:26,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:48:26,188 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:48:26,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:48:26,189 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:48:26,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:48:26,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:48:26,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:48:26,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:48:26,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:48:26,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:48:26,191 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:48:26,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:48:26,192 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:48:26,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:48:26,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:48:26,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:48:26,193 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:48:26,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:48:26,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:48:26,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:48:26,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:48:26,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:48:26,194 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:48:26,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:48:26,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:48:26,195 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:48:26,195 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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;log-additional-information=true; [2020-09-25 07:48:26,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:48:26,705 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:48:26,709 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:48:26,711 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:48:26,711 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:48:26,712 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2020-09-25 07:48:26,787 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/87e947850/d766990bb9e744eeaa39be657f58826b/FLAGf949a26ff [2020-09-25 07:48:27,417 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:48:27,418 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2020-09-25 07:48:27,436 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/87e947850/d766990bb9e744eeaa39be657f58826b/FLAGf949a26ff [2020-09-25 07:48:27,651 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/87e947850/d766990bb9e744eeaa39be657f58826b [2020-09-25 07:48:27,663 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:48:27,670 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:48:27,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:48:27,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:48:27,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:48:27,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:48:27" (1/1) ... [2020-09-25 07:48:27,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42a1b8e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:27, skipping insertion in model container [2020-09-25 07:48:27,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:48:27" (1/1) ... [2020-09-25 07:48:27,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:48:27,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:48:28,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:48:28,301 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:48:28,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:48:28,457 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:48:28,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:28 WrapperNode [2020-09-25 07:48:28,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:48:28,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:48:28,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:48:28,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:48:28,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:28" (1/1) ... [2020-09-25 07:48:28,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:28" (1/1) ... [2020-09-25 07:48:28,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:28" (1/1) ... [2020-09-25 07:48:28,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:28" (1/1) ... [2020-09-25 07:48:28,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:28" (1/1) ... [2020-09-25 07:48:28,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:28" (1/1) ... [2020-09-25 07:48:28,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:28" (1/1) ... [2020-09-25 07:48:28,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:48:28,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:48:28,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:48:28,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:48:28,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:28" (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 07:48:28,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:48:28,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:48:28,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 07:48:28,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 07:48:28,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 07:48:28,651 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-09-25 07:48:28,651 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-09-25 07:48:28,651 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-09-25 07:48:28,651 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-09-25 07:48:28,652 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-09-25 07:48:28,652 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-09-25 07:48:28,652 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-09-25 07:48:28,652 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-09-25 07:48:28,652 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-09-25 07:48:28,653 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-09-25 07:48:28,653 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-09-25 07:48:28,653 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-09-25 07:48:28,653 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-09-25 07:48:28,653 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-09-25 07:48:28,654 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-09-25 07:48:28,654 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-09-25 07:48:28,654 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:48:28,654 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:48:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 07:48:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 07:48:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 07:48:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 07:48:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 07:48:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 07:48:28,656 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 07:48:28,656 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 07:48:28,656 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 07:48:28,656 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 07:48:28,656 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 07:48:28,656 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 07:48:28,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 07:48:28,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 07:48:28,657 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 07:48:28,657 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 07:48:28,657 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 07:48:28,658 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 07:48:28,658 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 07:48:28,658 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 07:48:28,658 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 07:48:28,658 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 07:48:28,658 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 07:48:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 07:48:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 07:48:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 07:48:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 07:48:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 07:48:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 07:48:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 07:48:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 07:48:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 07:48:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 07:48:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 07:48:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 07:48:28,661 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 07:48:28,661 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 07:48:28,661 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 07:48:28,661 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 07:48:28,661 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 07:48:28,661 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 07:48:28,661 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 07:48:28,661 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 07:48:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 07:48:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 07:48:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 07:48:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 07:48:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 07:48:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 07:48:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 07:48:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 07:48:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 07:48:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:48:28,664 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 07:48:28,664 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 07:48:28,664 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:48:28,664 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 07:48:28,664 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 07:48:28,664 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 07:48:28,664 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 07:48:28,664 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 07:48:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 07:48:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 07:48:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 07:48:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 07:48:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 07:48:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 07:48:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 07:48:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 07:48:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 07:48:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 07:48:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 07:48:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 07:48:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 07:48:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 07:48:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 07:48:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 07:48:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 07:48:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 07:48:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 07:48:28,667 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 07:48:28,667 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 07:48:28,667 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 07:48:28,667 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 07:48:28,667 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 07:48:28,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 07:48:28,667 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 07:48:28,667 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 07:48:28,667 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 07:48:28,668 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 07:48:28,668 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 07:48:28,668 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 07:48:28,668 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 07:48:28,668 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 07:48:28,668 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 07:48:28,668 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 07:48:28,669 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 07:48:28,669 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 07:48:28,669 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 07:48:28,669 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 07:48:28,669 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 07:48:28,669 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 07:48:28,670 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 07:48:28,670 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 07:48:28,670 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 07:48:28,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:48:28,670 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-09-25 07:48:28,671 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-09-25 07:48:28,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:48:28,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:48:28,671 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-09-25 07:48:28,671 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-09-25 07:48:28,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:48:28,672 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-09-25 07:48:28,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:48:28,672 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 07:48:28,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 07:48:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:48:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-09-25 07:48:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-09-25 07:48:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-09-25 07:48:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-09-25 07:48:28,674 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-09-25 07:48:28,674 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-09-25 07:48:28,674 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-09-25 07:48:28,674 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-09-25 07:48:28,674 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-09-25 07:48:28,674 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-09-25 07:48:28,675 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-09-25 07:48:28,675 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:48:28,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:48:28,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:48:29,667 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:48:29,667 INFO L295 CfgBuilder]: Removed 38 assume(true) statements. [2020-09-25 07:48:29,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:48:29 BoogieIcfgContainer [2020-09-25 07:48:29,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:48:29,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:48:29,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:48:29,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:48:29,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:48:27" (1/3) ... [2020-09-25 07:48:29,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4725838b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:48:29, skipping insertion in model container [2020-09-25 07:48:29,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:28" (2/3) ... [2020-09-25 07:48:29,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4725838b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:48:29, skipping insertion in model container [2020-09-25 07:48:29,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:48:29" (3/3) ... [2020-09-25 07:48:29,685 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_of_dll-1.i [2020-09-25 07:48:29,697 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:48:29,709 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:48:29,733 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:48:29,770 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:48:29,770 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:48:29,770 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:48:29,770 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:48:29,770 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:48:29,771 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:48:29,771 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:48:29,771 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:48:29,802 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states. [2020-09-25 07:48:29,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 07:48:29,815 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:29,817 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 07:48:29,817 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:29,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:29,826 INFO L82 PathProgramCache]: Analyzing trace with hash 575468621, now seen corresponding path program 1 times [2020-09-25 07:48:29,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:29,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [287147960] [2020-09-25 07:48:29,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:30,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:30,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:30,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:31,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:35,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:35,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-25 07:48:35,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:48:35,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-25 07:48:35,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:35,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:35,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:35,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-25 07:48:35,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:35,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 07:48:35,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:35,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:35,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:35,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:35,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:48:35,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:35,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:48:35,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:35,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:35,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:35,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:35,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:35,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:35,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:48:35,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:35,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:35,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:35,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:35,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:36,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:40,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:40,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 07:48:40,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:48:40,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 07:48:40,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:40,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:40,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:40,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 07:48:40,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:40,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:40,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:40,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:40,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:40,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:41,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:43,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:43,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:45,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:45,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 07:48:45,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:48:45,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 07:48:45,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:45,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:45,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:45,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-25 07:48:45,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:45,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:45,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:48:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:45,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:45,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:45,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 07:48:45,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:45,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 07:48:45,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:45,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:45,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:45,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:45,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:45,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:45,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:48:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:45,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:45,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:45,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 07:48:45,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:45,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 07:48:45,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:45,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:45,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:45,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:45,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:45,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:48:45,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:48:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:45,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:45,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:45,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:48:45,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:45,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:48:45,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:45,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:45,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:45,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:45,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:45,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:45,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 07:48:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:45,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:45,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:45,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 07:48:45,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:45,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 07:48:45,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:45,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:45,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:45,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:45,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:45,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:45,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:48:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:45,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:45,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:45,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 07:48:45,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:45,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 07:48:45,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:45,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:45,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:45,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:45,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:45,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:45,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:48:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:45,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:45,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:45,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:48:45,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:45,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:48:45,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:45,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:45,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:45,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:45,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:45,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:45,688 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 07:48:45,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [287147960] [2020-09-25 07:48:45,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:45,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:48:45,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060035112] [2020-09-25 07:48:45,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:48:45,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:45,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:48:45,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:48:45,722 INFO L87 Difference]: Start difference. First operand 276 states. Second operand 4 states. [2020-09-25 07:48:46,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:46,329 INFO L93 Difference]: Finished difference Result 568 states and 767 transitions. [2020-09-25 07:48:46,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:48:46,331 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 85 [2020-09-25 07:48:46,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:46,350 INFO L225 Difference]: With dead ends: 568 [2020-09-25 07:48:46,350 INFO L226 Difference]: Without dead ends: 275 [2020-09-25 07:48:46,359 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 07:48:46,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-09-25 07:48:46,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 255. [2020-09-25 07:48:46,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-25 07:48:46,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 284 transitions. [2020-09-25 07:48:46,448 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 284 transitions. Word has length 85 [2020-09-25 07:48:46,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:46,449 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 284 transitions. [2020-09-25 07:48:46,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:48:46,450 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 284 transitions. [2020-09-25 07:48:46,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 07:48:46,454 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:46,455 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 07:48:46,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:48:46,455 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:46,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:46,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1893520380, now seen corresponding path program 1 times [2020-09-25 07:48:46,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:46,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204684644] [2020-09-25 07:48:46,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:46,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:46,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:46,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:47,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:51,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:51,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 07:48:51,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:48:51,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 07:48:51,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:51,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:51,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:48:51,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 07:48:51,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 07:48:51,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:51,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:51,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:51,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:51,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:48:51,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:51,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:48:51,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:51,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:51,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:51,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:51,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:51,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:51,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:48:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:51,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:51,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:51,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:52,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:56,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:56,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 07:48:56,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:48:56,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 07:48:56,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:56,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:56,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:48:56,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 07:48:56,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 07:48:56,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:56,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:56,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:56,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:56,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:57,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:01,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:01,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 07:49:01,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:49:01,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 07:49:01,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:01,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:01,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:49:01,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:49:01,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 07:49:01,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:01,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:49:01,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:01,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:01,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:01,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 07:49:01,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:01,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 07:49:01,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:01,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:01,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:49:01,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:01,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 07:49:01,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:49:01,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:49:01,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:01,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:01,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:01,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 07:49:01,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:01,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 07:49:01,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:01,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:01,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:49:01,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:01,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 07:49:01,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:49:01,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:01,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:01,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:01,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:49:01,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:01,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:49:01,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:01,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:01,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:01,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:01,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:01,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:49:01,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 07:49:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:01,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:02,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:02,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 07:49:02,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:02,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 07:49:02,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:02,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:02,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:49:02,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:02,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 07:49:02,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:02,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:49:02,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:02,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:02,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:02,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 07:49:02,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:02,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 07:49:02,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:02,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:02,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:02,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:02,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:02,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:02,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:02,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:02,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:02,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:49:02,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:02,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:49:02,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:02,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:02,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:02,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:02,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:02,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:02,155 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 07:49:02,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204684644] [2020-09-25 07:49:02,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:49:02,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 07:49:02,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534213636] [2020-09-25 07:49:02,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:49:02,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:49:02,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:49:02,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:49:02,160 INFO L87 Difference]: Start difference. First operand 255 states and 284 transitions. Second operand 7 states. [2020-09-25 07:49:03,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:49:03,391 INFO L93 Difference]: Finished difference Result 542 states and 621 transitions. [2020-09-25 07:49:03,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:49:03,391 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2020-09-25 07:49:03,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:49:03,397 INFO L225 Difference]: With dead ends: 542 [2020-09-25 07:49:03,398 INFO L226 Difference]: Without dead ends: 296 [2020-09-25 07:49:03,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:49:03,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-25 07:49:03,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 276. [2020-09-25 07:49:03,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-09-25 07:49:03,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 307 transitions. [2020-09-25 07:49:03,428 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 307 transitions. Word has length 87 [2020-09-25 07:49:03,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:49:03,428 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 307 transitions. [2020-09-25 07:49:03,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:49:03,428 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 307 transitions. [2020-09-25 07:49:03,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-25 07:49:03,434 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:03,434 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 07:49:03,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:49:03,434 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:03,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:03,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1671014528, now seen corresponding path program 1 times [2020-09-25 07:49:03,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:03,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2083255240] [2020-09-25 07:49:03,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:03,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:03,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:04,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:04,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:06,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:08,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:08,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 296 [2020-09-25 07:49:08,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:49:08,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 07:49:08,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:08,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:08,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 07:49:08,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 07:49:08,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-25 07:49:08,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:08,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:08,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:08,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:08,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:49:08,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:08,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:49:08,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:08,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:08,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:08,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:08,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:08,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:49:08,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:49:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:08,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:09,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:09,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:11,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:13,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:13,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-09-25 07:49:13,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:49:13,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-09-25 07:49:13,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:13,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:13,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 07:49:13,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:49:13,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-25 07:49:13,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:49:13,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:13,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:13,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:14,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:16,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking...