/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:30:48,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:30:48,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:30:48,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:30:48,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:30:48,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:30:48,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:30:48,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:30:48,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:30:48,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:30:48,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:30:48,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:30:48,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:30:48,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:30:48,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:30:48,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:30:48,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:30:48,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:30:48,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:30:48,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:30:48,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:30:48,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:30:48,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:30:48,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:30:48,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:30:48,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:30:48,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:30:48,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:30:48,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:30:48,842 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:30:48,842 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:30:48,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:30:48,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:30:48,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:30:48,846 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:30:48,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:30:48,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:30:48,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:30:48,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:30:48,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:30:48,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:30:48,851 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 05:30:48,901 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:30:48,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:30:48,906 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:30:48,906 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:30:48,907 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:30:48,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:30:48,907 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:30:48,907 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:30:48,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:30:48,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:30:48,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:30:48,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:30:48,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:30:48,909 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:30:48,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:30:48,909 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:30:48,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:30:48,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:30:48,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:30:48,910 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:30:48,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:30:48,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:30:48,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:30:48,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:30:48,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:30:48,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:30:48,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:30:48,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:30:48,912 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:30:48,912 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:30:49,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:30:49,392 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:30:49,396 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:30:49,398 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:30:49,399 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:30:49,400 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-09-25 05:30:49,503 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f7a1381f/ca95d312abf84e8bad1cc0684f9be6d1/FLAG0bc102c2c [2020-09-25 05:30:50,197 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:30:50,198 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-09-25 05:30:50,233 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f7a1381f/ca95d312abf84e8bad1cc0684f9be6d1/FLAG0bc102c2c [2020-09-25 05:30:50,421 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f7a1381f/ca95d312abf84e8bad1cc0684f9be6d1 [2020-09-25 05:30:50,434 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:30:50,442 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:30:50,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:30:50,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:30:50,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:30:50,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:30:50" (1/1) ... [2020-09-25 05:30:50,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5badac6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:50, skipping insertion in model container [2020-09-25 05:30:50,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:30:50" (1/1) ... [2020-09-25 05:30:50,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:30:50,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:30:51,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:30:51,038 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:30:51,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:30:51,171 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:30:51,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:51 WrapperNode [2020-09-25 05:30:51,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:30:51,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:30:51,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:30:51,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:30:51,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:51" (1/1) ... [2020-09-25 05:30:51,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:51" (1/1) ... [2020-09-25 05:30:51,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:51" (1/1) ... [2020-09-25 05:30:51,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:51" (1/1) ... [2020-09-25 05:30:51,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:51" (1/1) ... [2020-09-25 05:30:51,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:51" (1/1) ... [2020-09-25 05:30:51,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:51" (1/1) ... [2020-09-25 05:30:51,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:30:51,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:30:51,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:30:51,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:30:51,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:30:51,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:30:51,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:30:51,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 05:30:51,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 05:30:51,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 05:30:51,353 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-09-25 05:30:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-09-25 05:30:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-09-25 05:30:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-09-25 05:30:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-09-25 05:30:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-09-25 05:30:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-09-25 05:30:51,355 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-09-25 05:30:51,355 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-09-25 05:30:51,355 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-09-25 05:30:51,355 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-09-25 05:30:51,355 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-09-25 05:30:51,355 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-09-25 05:30:51,356 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-09-25 05:30:51,356 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-09-25 05:30:51,356 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-09-25 05:30:51,356 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:30:51,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:30:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 05:30:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 05:30:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 05:30:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 05:30:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 05:30:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 05:30:51,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 05:30:51,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 05:30:51,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 05:30:51,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 05:30:51,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 05:30:51,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 05:30:51,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 05:30:51,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 05:30:51,359 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 05:30:51,359 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 05:30:51,359 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 05:30:51,359 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 05:30:51,359 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 05:30:51,359 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 05:30:51,359 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 05:30:51,359 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 05:30:51,359 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 05:30:51,360 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 05:30:51,360 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 05:30:51,360 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 05:30:51,360 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 05:30:51,360 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 05:30:51,360 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 05:30:51,360 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 05:30:51,361 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 05:30:51,361 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 05:30:51,361 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 05:30:51,361 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 05:30:51,361 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 05:30:51,361 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 05:30:51,362 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 05:30:51,362 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 05:30:51,362 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 05:30:51,362 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 05:30:51,362 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 05:30:51,363 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 05:30:51,363 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 05:30:51,363 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 05:30:51,363 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 05:30:51,363 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 05:30:51,363 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 05:30:51,363 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 05:30:51,364 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 05:30:51,364 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 05:30:51,364 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 05:30:51,364 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 05:30:51,364 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:30:51,365 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 05:30:51,365 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 05:30:51,365 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:30:51,365 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 05:30:51,365 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 05:30:51,365 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 05:30:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 05:30:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 05:30:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 05:30:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 05:30:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 05:30:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 05:30:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 05:30:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 05:30:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 05:30:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 05:30:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 05:30:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 05:30:51,368 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 05:30:51,368 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 05:30:51,368 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 05:30:51,368 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 05:30:51,368 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 05:30:51,368 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 05:30:51,368 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 05:30:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 05:30:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 05:30:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 05:30:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 05:30:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 05:30:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 05:30:51,370 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 05:30:51,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 05:30:51,370 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 05:30:51,370 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 05:30:51,370 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 05:30:51,370 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 05:30:51,370 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 05:30:51,371 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 05:30:51,371 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 05:30:51,371 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 05:30:51,371 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 05:30:51,371 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 05:30:51,371 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 05:30:51,372 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 05:30:51,372 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 05:30:51,372 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 05:30:51,372 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 05:30:51,372 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 05:30:51,373 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 05:30:51,373 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 05:30:51,373 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 05:30:51,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:30:51,373 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-09-25 05:30:51,373 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-09-25 05:30:51,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:30:51,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:30:51,374 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-09-25 05:30:51,374 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-09-25 05:30:51,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:30:51,375 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-09-25 05:30:51,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:30:51,375 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 05:30:51,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 05:30:51,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:30:51,375 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-09-25 05:30:51,375 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-09-25 05:30:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-09-25 05:30:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-09-25 05:30:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-09-25 05:30:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-09-25 05:30:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-09-25 05:30:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-09-25 05:30:51,377 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-09-25 05:30:51,377 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-09-25 05:30:51,377 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-09-25 05:30:51,377 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:30:51,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:30:51,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:30:52,347 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:30:52,347 INFO L295 CfgBuilder]: Removed 38 assume(true) statements. [2020-09-25 05:30:52,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:30:52 BoogieIcfgContainer [2020-09-25 05:30:52,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:30:52,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:30:52,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:30:52,360 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:30:52,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:30:50" (1/3) ... [2020-09-25 05:30:52,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69fbb48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:30:52, skipping insertion in model container [2020-09-25 05:30:52,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:51" (2/3) ... [2020-09-25 05:30:52,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69fbb48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:30:52, skipping insertion in model container [2020-09-25 05:30:52,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:30:52" (3/3) ... [2020-09-25 05:30:52,364 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2020-09-25 05:30:52,376 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:30:52,387 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:30:52,408 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:30:52,437 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:30:52,437 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:30:52,437 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:30:52,438 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:30:52,438 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:30:52,438 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:30:52,438 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:30:52,438 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:30:52,466 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states. [2020-09-25 05:30:52,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 05:30:52,479 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:52,481 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 05:30:52,481 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:52,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:52,489 INFO L82 PathProgramCache]: Analyzing trace with hash 575468621, now seen corresponding path program 1 times [2020-09-25 05:30:52,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:52,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1032135082] [2020-09-25 05:30:52,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:52,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:52,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:53,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:54,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:57,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:57,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-25 05:30:57,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:30:57,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 05:30:57,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:57,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:57,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:57,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-25 05:30:57,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:57,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:30:57,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:57,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:57,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:57,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:30:57,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:57,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:30:57,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:57,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:57,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:57,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:57,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:57,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:57,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 05:30:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:57,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:58,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:58,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:58,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:59,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:02,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:02,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 05:31:02,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:31:02,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 05:31:02,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:02,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:02,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:02,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 05:31:02,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:02,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:02,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:31:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:02,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:03,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:03,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:05,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:06,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:07,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:07,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 05:31:07,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:31:07,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 05:31:07,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:07,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:07,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:07,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-25 05:31:07,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:07,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:07,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:31:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:07,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:08,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:08,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 05:31:08,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:08,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 05:31:08,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:08,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:08,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:08,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:08,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:08,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:31:08,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:31:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:08,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:08,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:08,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 05:31:08,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:08,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 05:31:08,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:08,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:08,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:08,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:08,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:08,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:31:08,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:31:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:08,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:08,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:08,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 05:31:08,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:08,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 05:31:08,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:08,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:08,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:08,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:08,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:08,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:08,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 05:31:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:08,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:08,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:08,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 05:31:08,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:08,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 05:31:08,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:08,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:08,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:08,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:08,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:08,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:08,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:31:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:08,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:08,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:08,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 05:31:08,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:08,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 05:31:08,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:08,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:08,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:08,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:08,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:08,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:08,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:31:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:08,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:08,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:08,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 05:31:08,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:08,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 05:31:08,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:08,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:08,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:08,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:08,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:08,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:08,267 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 05:31:08,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1032135082] [2020-09-25 05:31:08,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:31:08,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:31:08,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399643097] [2020-09-25 05:31:08,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:31:08,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:31:08,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:31:08,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:31:08,301 INFO L87 Difference]: Start difference. First operand 276 states. Second operand 4 states. [2020-09-25 05:31:08,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:31:08,964 INFO L93 Difference]: Finished difference Result 568 states and 767 transitions. [2020-09-25 05:31:08,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:31:08,966 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 85 [2020-09-25 05:31:08,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:31:08,985 INFO L225 Difference]: With dead ends: 568 [2020-09-25 05:31:08,985 INFO L226 Difference]: Without dead ends: 275 [2020-09-25 05:31:08,994 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 05:31:09,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-09-25 05:31:09,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 255. [2020-09-25 05:31:09,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-25 05:31:09,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 284 transitions. [2020-09-25 05:31:09,078 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 284 transitions. Word has length 85 [2020-09-25 05:31:09,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:31:09,080 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 284 transitions. [2020-09-25 05:31:09,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:31:09,080 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 284 transitions. [2020-09-25 05:31:09,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 05:31:09,084 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:31:09,085 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 05:31:09,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:31:09,085 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:31:09,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:31:09,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1893520380, now seen corresponding path program 1 times [2020-09-25 05:31:09,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:31:09,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114755600] [2020-09-25 05:31:09,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:31:09,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:09,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:09,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:09,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:10,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:14,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:14,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 05:31:14,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:31:14,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 05:31:14,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:14,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:14,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:31:14,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 05:31:14,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 05:31:14,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:31:14,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:31:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:14,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:14,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:14,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:31:14,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:14,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:31:14,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:14,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:14,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:14,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:14,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:14,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:31:14,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 05:31:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:14,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:14,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:14,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:14,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:19,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:19,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 05:31:19,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:31:19,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 05:31:19,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:19,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:19,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:31:19,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 05:31:19,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 05:31:19,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:31:19,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:31:19,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:19,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:19,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:19,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:20,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:24,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:24,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 05:31:24,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:31:24,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 05:31:24,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:24,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:24,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:31:24,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:31:24,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 05:31:24,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:24,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:31:24,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:24,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:24,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:24,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 05:31:24,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:24,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 05:31:24,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:24,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:24,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:31:24,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:24,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 05:31:24,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:24,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:31:24,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:24,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:24,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:24,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 05:31:24,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:24,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 05:31:24,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:24,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:24,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:31:24,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:24,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 05:31:24,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:24,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:31:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:24,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:24,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:24,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 05:31:24,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:24,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 05:31:24,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:24,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:24,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:24,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:24,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:24,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:24,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 05:31:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:24,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:24,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:24,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 05:31:24,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:24,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 05:31:24,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:24,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:24,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:31:24,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:24,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 05:31:24,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:24,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:31:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:24,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:24,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:24,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 05:31:24,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:24,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 05:31:24,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:24,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:24,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:24,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:24,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:24,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:24,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:31:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:24,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:24,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:24,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 05:31:24,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:24,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 05:31:24,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:24,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:24,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:24,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:24,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:24,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:24,852 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 05:31:24,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114755600] [2020-09-25 05:31:24,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:31:24,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 05:31:24,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183088267] [2020-09-25 05:31:24,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:31:24,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:31:24,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:31:24,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:31:24,857 INFO L87 Difference]: Start difference. First operand 255 states and 284 transitions. Second operand 7 states. [2020-09-25 05:31:26,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:31:26,132 INFO L93 Difference]: Finished difference Result 542 states and 621 transitions. [2020-09-25 05:31:26,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 05:31:26,133 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2020-09-25 05:31:26,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:31:26,137 INFO L225 Difference]: With dead ends: 542 [2020-09-25 05:31:26,138 INFO L226 Difference]: Without dead ends: 296 [2020-09-25 05:31:26,140 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 05:31:26,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-25 05:31:26,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 276. [2020-09-25 05:31:26,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-09-25 05:31:26,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 307 transitions. [2020-09-25 05:31:26,169 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 307 transitions. Word has length 87 [2020-09-25 05:31:26,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:31:26,170 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 307 transitions. [2020-09-25 05:31:26,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:31:26,170 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 307 transitions. [2020-09-25 05:31:26,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-25 05:31:26,176 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:31:26,176 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 05:31:26,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:31:26,179 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:31:26,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:31:26,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1671014528, now seen corresponding path program 1 times [2020-09-25 05:31:26,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:31:26,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821695843] [2020-09-25 05:31:26,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:31:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:26,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:26,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:27,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:27,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:29,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:31,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:31,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 296 [2020-09-25 05:31:31,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:31:31,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5092 [2020-09-25 05:31:31,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:31,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:31,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 05:31:31,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 05:31:31,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-25 05:31:31,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:31,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:31:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:31,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:31,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:31,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:31:31,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:31,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:31:31,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:31,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:31,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:31,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:31,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:31,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:31:31,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 05:31:31,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:31,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:32,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:32,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:33,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:36,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:36,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-09-25 05:31:36,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:31:36,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 05:31:36,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:36,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:36,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 05:31:36,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 05:31:36,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-25 05:31:36,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:31:36,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:31:36,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:36,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:37,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:37,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:38,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking...